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2012年29卷4期

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前植物生产层
基于GIS的天山北坡荒漠绿洲景观格局变化的研究以新疆巴里坤哈萨克自治县为例
2012, 6(4): 501-506.
[摘要](1146) [PDF 489KB](810)
摘要:
利(li)(li)(li)用(yong)(yong)(yong)(yong)2000和2007年(nian)LandsatTM影(ying)像资料,采(cai)用(yong)(yong)(yong)(yong)GIS技术研(yan)究了天山北坡荒(huang)漠绿(lv)洲(zhou)区巴(ba)里坤(kun)哈萨(sa)克自治县(巴(ba)里县)的(de)景(jing)观(guan)(guan)(guan)格(ge)局变化特(te)(te)征(zheng)。结果(guo)表明(ming),从(cong)(cong)2000到2007年(nian),巴(ba)里坤(kun)县的(de)水域(yu)(yu)和草(cao)(cao)地(di)(di)(di)(di)(di)(di)(di)面(mian)积分别减少623.42和14 566.72 hm2,而(er)未利(li)(li)(li)用(yong)(yong)(yong)(yong)地(di)(di)(di)(di)(di)(di)(di)、林地(di)(di)(di)(di)(di)(di)(di)、耕地(di)(di)(di)(di)(di)(di)(di)和居(ju)民及(ji)工(gong)矿用(yong)(yong)(yong)(yong)地(di)(di)(di)(di)(di)(di)(di)分别增(zeng)加(jia)9 397.30、3 090.15、259.57和2 443.12 hm2,但(dan)主(zhu)要景(jing)观(guan)(guan)(guan)类(lei)型(xing)是草(cao)(cao)地(di)(di)(di)(di)(di)(di)(di)和未利(li)(li)(li)用(yong)(yong)(yong)(yong)土(tu)地(di)(di)(di)(di)(di)(di)(di)的(de)格(ge)局基本没(mei)有改变。8年(nian)内巴(ba)里坤(kun)县景(jing)观(guan)(guan)(guan)多样性(xing)指(zhi)数(shu)从(cong)(cong)0.74增(zeng)至(zhi)0.80,均匀度(du)指(zhi)数(shu)从(cong)(cong)0.35增(zeng)至(zhi)0.40,景(jing)观(guan)(guan)(guan)构(gou)型(xing)指(zhi)数(shu)从(cong)(cong)8.40增(zeng)至(zhi)9.40,说(shuo)明(ming)景(jing)观(guan)(guan)(guan)多样性(xing)略有增(zeng)加(jia),景(jing)观(guan)(guan)(guan)构(gou)型(xing)逐(zhu)渐变大,草(cao)(cao)地(di)(di)(di)(di)(di)(di)(di)破碎度(du)加(jia)剧。版块(kuai)特(te)(te)征(zheng)变化表现为景(jing)观(guan)(guan)(guan)分维数(shu)增(zeng)高,而(er)稳(wen)定性(xing)指(zhi)数(shu)减小,各个景(jing)观(guan)(guan)(guan)类(lei)型(xing)的(de)相对稳(wen)定性(xing)为: 居(ju)民及(ji)工(gong)矿用(yong)(yong)(yong)(yong)地(di)(di)(di)(di)(di)(di)(di)>水域(yu)(yu)>耕地(di)(di)(di)(di)(di)(di)(di)>林地(di)(di)(di)(di)(di)(di)(di)>草(cao)(cao)地(di)(di)(di)(di)(di)(di)(di)>未利(li)(li)(li)用(yong)(yong)(yong)(yong)地(di)(di)(di)(di)(di)(di)(di),说(shuo)明(ming)草(cao)(cao)地(di)(di)(di)(di)(di)(di)(di)和未利(li)(li)(li)用(yong)(yong)(yong)(yong)土(tu)地(di)(di)(di)(di)(di)(di)(di)是目前主(zhu)要开发利(li)(li)(li)用(yong)(yong)(yong)(yong)的(de)景(jing)观(guan)(guan)(guan)类(lei)型(xing)。
青藏高原东部不同草地类型土壤养分的分布规律
2012, 6(4): 507-512.
[摘要](1898) [PDF 413KB](836)
摘要:
调查分析了(le)青藏高(gao)(gao)原(yuan)东部高(gao)(gao)寒(han)(han)(han)(han)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)甸(dian)(dian)(dian)(dian)、高(gao)(gao)寒(han)(han)(han)(han)灌丛(cong)(cong)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)甸(dian)(dian)(dian)(dian)、亚(ya)高(gao)(gao)寒(han)(han)(han)(han)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)甸(dian)(dian)(dian)(dian)、沼泽(ze)(ze)(ze)化(hua)(hua)(hua)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)甸(dian)(dian)(dian)(dian)、荒(huang)漠(mo)(mo)化(hua)(hua)(hua)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)原(yuan)、林(lin)间(jian)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)地(di)、盐(yan)渍(zi)(zi)化(hua)(hua)(hua)沼泽(ze)(ze)(ze)土(tu)(tu)壤(rang)(rang)碳氮磷(lin)含量(liang)(liang)垂直分布特征。结果表明,7种草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)地(di)类(lei)型中(zhong),土(tu)(tu)壤(rang)(rang)有(you)机(ji)碳含量(liang)(liang)大体(ti)随着土(tu)(tu)层(ceng)(ceng)的深入而(er)降(jiang)低(di),0~15 cm土(tu)(tu)层(ceng)(ceng)土(tu)(tu)壤(rang)(rang)有(you)机(ji)碳的累积量(liang)(liang)从高(gao)(gao)到(dao)低(di)依次(ci)为(wei)(wei)林(lin)间(jian)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)地(di)高(gao)(gao)寒(han)(han)(han)(han)灌丛(cong)(cong)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)甸(dian)(dian)(dian)(dian)高(gao)(gao)寒(han)(han)(han)(han)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)甸(dian)(dian)(dian)(dian)沼泽(ze)(ze)(ze)化(hua)(hua)(hua)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)甸(dian)(dian)(dian)(dian)盐(yan)渍(zi)(zi)化(hua)(hua)(hua)沼泽(ze)(ze)(ze)亚(ya)高(gao)(gao)寒(han)(han)(han)(han)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)甸(dian)(dian)(dian)(dian)荒(huang)漠(mo)(mo)化(hua)(hua)(hua)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)甸(dian)(dian)(dian)(dian)(P0.05);随土(tu)(tu)层(ceng)(ceng)深度(du)变化(hua)(hua)(hua)土(tu)(tu)壤(rang)(rang)全(quan)(quan)氮含量(liang)(liang)与有(you)机(ji)碳相似(si),0~15 cm全(quan)(quan)氮累积量(liang)(liang)从高(gao)(gao)到(dao)低(di)依次(ci)为(wei)(wei)沼泽(ze)(ze)(ze)化(hua)(hua)(hua)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)甸(dian)(dian)(dian)(dian)林(lin)间(jian)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)地(di)高(gao)(gao)寒(han)(han)(han)(han)灌丛(cong)(cong)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)甸(dian)(dian)(dian)(dian)高(gao)(gao)寒(han)(han)(han)(han)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)甸(dian)(dian)(dian)(dian)盐(yan)渍(zi)(zi)化(hua)(hua)(hua)沼泽(ze)(ze)(ze)荒(huang)漠(mo)(mo)化(hua)(hua)(hua)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)原(yuan)亚(ya)高(gao)(gao)寒(han)(han)(han)(han)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)甸(dian)(dian)(dian)(dian)(P0.05);荒(huang)漠(mo)(mo)化(hua)(hua)(hua)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)原(yuan)、林(lin)间(jian)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)地(di)和(he)土(tu)(tu)壤(rang)(rang)全(quan)(quan)磷(lin)含量(liang)(liang)随土(tu)(tu)层(ceng)(ceng)深度(du)无明显规律(lv)性,0~15 cm土(tu)(tu)层(ceng)(ceng)全(quan)(quan)磷(lin)累积量(liang)(liang)由高(gao)(gao)到(dao)低(di)依次(ci)为(wei)(wei)高(gao)(gao)寒(han)(han)(han)(han)灌丛(cong)(cong)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)甸(dian)(dian)(dian)(dian)沼泽(ze)(ze)(ze)化(hua)(hua)(hua)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)甸(dian)(dian)(dian)(dian)高(gao)(gao)寒(han)(han)(han)(han)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)甸(dian)(dian)(dian)(dian)盐(yan)渍(zi)(zi)化(hua)(hua)(hua)沼泽(ze)(ze)(ze)亚(ya)高(gao)(gao)寒(han)(han)(han)(han)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)甸(dian)(dian)(dian)(dian)荒(huang)漠(mo)(mo)化(hua)(hua)(hua)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)原(yuan)林(lin)间(jian)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)地(di)(P0.05);随土(tu)(tu)层(ceng)(ceng)深度(du)的增加(jia)不同(tong)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)地(di)类(lei)型养分含量(liang)(liang)顺序不同(tong)。除沼泽(ze)(ze)(ze)化(hua)(hua)(hua)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)甸(dian)(dian)(dian)(dian),不同(tong)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)地(di)类(lei)型下(xia)土(tu)(tu)壤(rang)(rang)有(you)机(ji)碳与全(quan)(quan)氮呈显著正相关。
污泥无土草皮基质配方优化研究
2012, 6(4): 513-521.
[摘要](1375) [PDF 461KB](820)
摘要:
以(yi)塑料(liao)薄膜为阻隔(ge)材料(liao),以(yi)污(wu)水处理(li)厂污(wu)泥为主要(yao)基(ji)质(zhi),煤渣(zha)、蘑菇渣(zha)和沙等(deng)为配(pei)材,采用(yong)单形格子(zi)配(pei)方(fang)试验设计和灰色关联系(xi)数法,对11种(zhong)不同配(pei)方(fang)基(ji)质(zhi)的(de)营养成分(fen)、重金(jin)(jin)属(shu)含(han)量(liang)(liang)、无土草(cao)皮坪用(yong)性状(zhuang)及(ji)综(zong)合(he)品质(zhi)进(jin)行了评定,建立(li)了草(cao)皮综(zong)合(he)品质(zhi)与各配(pei)方(fang)成分(fen)间显(xian)著相关的(de)回(hui)归模型(xing)。结果表明,除叶绿素(su)含(han)量(liang)(liang)外,其他7种(zhong)坪用(yong)性状(zhuang)差异显(xian)著。通过模拟寻(xun)优(you),得到基(ji)质(zhi)优(you)化配(pei)方(fang)方(fang)案为: 污(wu)泥含(han)量(liang)(liang)51.41%~51.83%,煤渣(zha)含(han)量(liang)(liang)18.32%~18.86%,蘑菇渣(zha)含(han)量(liang)(liang)18.19%~18.81%,沙含(han)量(liang)(liang)10.87%~11.72%。草(cao)坪草(cao)可富集较多的(de)重金(jin)(jin)属(shu)元素(su),收获草(cao)皮后(hou)的(de)基(ji)质(zhi)中重金(jin)(jin)属(shu)含(han)量(liang)(liang)降低(di)且符合(he)农用(yong)基(ji)质(zhi)标准。
13种观赏草引种的生物安全性初探
2012, 6(4): 521-527.
[摘要](1163) [PDF 450KB](621)
摘要:
为了(le)防止(zhi)观(guan)赏(shang)(shang)草的(de)盲(mang)目推(tui)广(guang)带来生物(wu)(wu)灾(zai)害,该研究针对引(yin)入的(de)13个(ge)观(guan)赏(shang)(shang)草品种分(fen)别(bie)从种子、不定根、检疫(yi)性(xing)(xing)(xing)病(bing)虫(chong)害3个(ge)方面分(fen)析了(le)是否存在(zai)生物(wu)(wu)入侵的(de)风险(xian),并就观(guan)赏(shang)(shang)草生态适应(ying)性(xing)(xing)(xing)和在(zai)景(jing)观(guan)应(ying)用(yong)中的(de)安全(quan)性(xing)(xing)(xing)进行了(le)分(fen)析。结(jie)果(guo)(guo)表明(ming),试验期(qi)间(jian)种子无自播现(xian)象(xiang);距离(li)原始植株0.1~1.0 m半(ban)径范围(wei)内无蔓发(fa)性(xing)(xing)(xing)根发(fa)苗(miao)现(xian)象(xiang);未发(fa)现(xian)检疫(yi)性(xing)(xing)(xing)病(bing)虫(chong)害;水葱(Scirpus validus)和花叶水葱(S.validus Mosaic)与(yu)高抗逆(ni)性(xing)(xing)(xing)品种的(de)关(guan)联度最高,为0.763 9,蒲(pu)苇(Cortaderia selloana)和矮蒲(pu)苇(C.selloana Pumila)稍次之,关(guan)联度为0.748 0;13种观(guan)赏(shang)(shang)草在(zai)园林景(jing)观(guan)中造成火灾(zai)危害的(de)可(ke)能性(xing)(xing)(xing)极低。以(yi)上结(jie)果(guo)(guo)证明(ming),所引(yin)品种在(zai)宁波地区(qu)种植存在(zai)生物(wu)(wu)入侵的(de)可(ke)能性(xing)(xing)(xing)极低,可(ke)以(yi)在(zai)宁波及周边地区(qu)推(tui)广(guang)应(ying)用(yong)。
低碳农业研究进展
2012, 6(4): 528-533.
[摘要](1143) [PDF 370KB](833)
摘要:
低(di)(di)(di)碳(tan)农(nong)(nong)(nong)业(ye)(ye)是低(di)(di)(di)碳(tan)经济在(zai)农(nong)(nong)(nong)业(ye)(ye)发(fa)(fa)(fa)展中(zhong)的(de)(de)(de)实现(xian)形(xing)式,发(fa)(fa)(fa)展低(di)(di)(di)碳(tan)农(nong)(nong)(nong)业(ye)(ye)除了秉(bing)承低(di)(di)(di)碳(tan)经济的(de)(de)(de)内(nei)涵之外,关键在(zai)于提高农(nong)(nong)(nong)业(ye)(ye)生(sheng)(sheng)态(tai)系统(tong)对(dui)气候变化的(de)(de)(de)适应(ying)性并降低(di)(di)(di)农(nong)(nong)(nong)业(ye)(ye)发(fa)(fa)(fa)展对(dui)生(sheng)(sheng)态(tai)系统(tong)碳(tan)循环的(de)(de)(de)影响(xiang),维持(chi)生(sheng)(sheng)物圈的(de)(de)(de)碳(tan)平衡。本研究在(zai)阅(yue)读大量文(wen)献(xian)的(de)(de)(de)基础上(shang),对(dui)低(di)(di)(di)碳(tan)农(nong)(nong)(nong)业(ye)(ye)的(de)(de)(de)概念、低(di)(di)(di)碳(tan)农(nong)(nong)(nong)业(ye)(ye)的(de)(de)(de)特(te)点、低(di)(di)(di)碳(tan)农(nong)(nong)(nong)业(ye)(ye)的(de)(de)(de)发(fa)(fa)(fa)展现(xian)状(zhuang)、草地生(sheng)(sheng)态(tai)系统(tong)中(zhong)的(de)(de)(de)碳(tan)循环及低(di)(di)(di)碳(tan)农(nong)(nong)(nong)业(ye)(ye)发(fa)(fa)(fa)展存(cun)在(zai)的(de)(de)(de)问(wen)题及对(dui)策进行了综述,以(yi)期为我国低(di)(di)(di)碳(tan)农(nong)(nong)(nong)业(ye)(ye)及草业(ye)(ye)的(de)(de)(de)发(fa)(fa)(fa)展提供参考。
草类对重金属胁迫的生理生化响应机制
2012, 6(4): 534-541.
[摘要](1079) [PDF 575KB](1174)
摘要:
随(sui)着我国工(gong)业化进程不(bu)断加快,作为(wei)工(gong)业化基本(ben)生(sheng)产资料(liao)的(de)(de)(de)重(zhong)金(jin)属(shu)(shu)不(bu)断被释(shi)放到生(sheng)物(wu)圈中,并通过食(shi)物(wu)链传(chuan)递给(ji)(ji)动物(wu)或人,给(ji)(ji)人类健康(kang)带来严重(zhong)危害。草类分(fen)(fen)布广泛,有(you)一定的(de)(de)(de)抵抗能力(li),一些草类甚至还具有(you)重(zhong)金(jin)属(shu)(shu)超富(fu)集能力(li),在生(sheng)物(wu)修复(fu)中发(fa)挥重(zhong)要作用。本(ben)文就重(zhong)金(jin)属(shu)(shu)胁迫对草类种子(zi)萌发(fa)、根系(xi)活(huo)力(li)和生(sheng)物(wu)量方面的(de)(de)(de)影响以及草类的(de)(de)(de)抗性机制(zhi)(zhi)(脯氨酸、抗氧化酶(mei)系(xi)统、谷(gu)胱甘肽、隔离、菌根和水杨酸)等研究现状进行(xing)论述,并阐明草类对重(zhong)金(jin)属(shu)(shu)镉、锌、铜、铬、铅和汞的(de)(de)(de)富(fu)集效(xiao)应及其(qi)耐性机制(zhi)(zhi),以期为(wei)今后草类耐重(zhong)金(jin)属(shu)(shu)胁迫品种的(de)(de)(de)选育(yu)和耐重(zhong)金(jin)属(shu)(shu)胁迫分(fen)(fen)子(zi)机制(zhi)(zhi)的(de)(de)(de)研究,提(ti)供现实(shi)依据(ju)和理(li)论基础。
草人诗记
获国务院扶贫办首届友成扶贫科研成果奖感怀《草人诗记》之十四
任继周
2012, 6(4): 542-543.
[摘要](1050) [PDF 607KB](1449)
摘要:
植物生产层
白颖苔草热激转录因子(HSF1)真核表达载体的构建
2012, 6(4): 544-548.
[摘要](1096) [PDF 622KB](623)
摘要:
摘要(yao): 根据(ju)表达载(zai)(zai)体PBI 121特(te)性及酶(mei)切(qie)位点(dian)设计合适的(de)(de)(de)引(yin)物,由(you)表达引(yin)物通(tong)过PCR技术从含有(you)白颖(ying)苔草(cao)(Carex rigescens)CrHsf全长cDNA的(de)(de)(de)克隆载(zai)(zai)体的(de)(de)(de)大(da)肠杆菌上扩增出带有(you)特(te)定(ding)酶(mei)切(qie)位点(dian)的(de)(de)(de)CrHsf完整开放阅(yue)读框。再对载(zai)(zai)体和目(mu)(mu)的(de)(de)(de)片(pian)(pian)段(duan)进行酶(mei)切(qie)处理(li),处理(li)后(hou)将(jiang)正确(que)的(de)(de)(de)目(mu)(mu)的(de)(de)(de)基因片(pian)(pian)段(duan)亚克隆至(zhi)PBI 121植物表达载(zai)(zai)体。通(tong)过PCR及酶(mei)切(qie)鉴定(ding),结(jie)果(guo)证明,目(mu)(mu)的(de)(de)(de)基因片(pian)(pian)段(duan)已被正确(que)克隆到表达载(zai)(zai)体上,载(zai)(zai)体构建成功。
多浆旱生植物霸王质膜Na╋/H╋逆向转运蛋白基因RNAi载体构建
马 清, 王锁民
2012, 6(4): 549-553.
[摘要](1178) [PDF 854KB](790)
摘要:
以多浆(jiang)旱生(sheng)植(zhi)(zhi)物霸(ba)王(wang)(Zygophyllum xanthoxylum)幼苗根系为(wei)材料,采(cai)用RTPCR方法获得了(le)其质膜(mo)Na+/H+逆向转运(yun)蛋白(bai)基因(yin)ZxSOS1的(de)(de)(de)片段,以中间载体pHANNIBAL和(he)植(zhi)(zhi)物表达载体PART27为(wei)基础(chu),采(cai)用酶切连接的(de)(de)(de)方法构建(jian)了(le)CaMV 35S启动(dong)子驱动(dong)的(de)(de)(de)含ZxSOS1基因(yin)片段反向重(zhong)复序列的(de)(de)(de)RNAi植(zhi)(zhi)物表达载体PARS,为(wei)利(li)用RNAi技术深入研究ZxSOS1在霸(ba)王(wang)体内Na+转运(yun)中的(de)(de)(de)功能及其在霸(ba)王(wang)适应干(gan)旱生(sheng)境中的(de)(de)(de)作用机制奠(dian)定基础(chu)。
高羊茅雄性不育株花粉母细胞减数分裂染色体行为观察
付 薇, 吴佳海, 陈 伟, 王小利, 牟 琼
2012, 6(4): 554-560.
[摘要](1383) [PDF 852KB](975)
摘要:
采用卡(ka)宝品红染色(se)制片(pian)法,对(dui)高(gao)羊(yang)茅(mao)(Festuca arundinacea)雄性不育(yu)植(zhi)株花(hua)粉母细胞减(jian)数分(fen)(fen)(fen)裂(lie)(lie)过(guo)(guo)(guo)程(cheng)及异(yi)常(chang)行为(wei)进(jin)行观察,结果发现(xian)(xian),高(gao)羊(yang)茅(mao)减(jian)数分(fen)(fen)(fen)裂(lie)(lie)进(jin)程(cheng)与小花(hua)大(da)小、花(hua)药(yao)长度(du)、色(se)泽有较(jiao)为(wei)密切的关系。减(jian)数分(fen)(fen)(fen)裂(lie)(lie)周期具(ju)有不同步(bu)性,同一制片(pian)中(zhong)(zhong)可观察到(dao)2~4个不同时期的分(fen)(fen)(fen)裂(lie)(lie)相,这种现(xian)(xian)象是高(gao)羊(yang)茅(mao)在(zai)(zai)进(jin)化过(guo)(guo)(guo)程(cheng)中(zhong)(zhong)环(huan)境适(shi)应的一种表(biao)现(xian)(xian),有利于增(zeng)强种群(qun)繁殖稳定(ding)性。本研究还(hai)发现(xian)(xian),减(jian)数分(fen)(fen)(fen)裂(lie)(lie)过(guo)(guo)(guo)程(cheng)中(zhong)(zhong)存(cun)在(zai)(zai)大(da)量单(dan)价体(ti)、染色(se)体(ti)桥(qiao)、落后染色(se)体(ti)、不均等分(fen)(fen)(fen)离、微核(he)、三(san)分(fen)(fen)(fen)体(ti)等异(yi)常(chang)现(xian)(xian)象,初步(bu)分(fen)(fen)(fen)析确定(ding)这些小孢(bao)子异(yi)常(chang)分(fen)(fen)(fen)裂(lie)(lie)是导致(zhi)高(gao)羊(yang)茅(mao)花(hua)粉败育(yu)的重要原因之(zhi)一。
新疆高葶韭雄蕊开花动态特征与花粉育性研究
林辰壹, 韩文娟, 祁晨霞, 叶 强
2012, 6(4): 561-566.
[摘要](1072) [PDF 552KB](644)
摘要:
为进一步(bu)研究国内(nei)仅分布于(yu)新疆的(de)高(gao)葶(ting)(ting)韭(Allium obliquum)花(hua)(hua)(hua)(hua)(hua)粉(fen)发(fa)(fa)育、传粉(fen)生物学以及(ji)为高(gao)葶(ting)(ting)韭人工有性繁殖提供理论依据和试验(yan)方法(fa),定株观察了(le)花(hua)(hua)(hua)(hua)(hua)期高(gao)葶(ting)(ting)韭雄(xiong)蕊(rui)(rui)的(de)开花(hua)(hua)(hua)(hua)(hua)进程以及(ji)形态变化(hua)特征(zheng),并采(cai)用6种方法(fa)测(ce)定了(le)高(gao)葶(ting)(ting)韭花(hua)(hua)(hua)(hua)(hua)粉(fen)育性。结(jie)果(guo)显示,高(gao)葶(ting)(ting)韭单(dan)花(hua)(hua)(hua)(hua)(hua)开放(fang)经(jing)过(guo)5个形态变化(hua)至花(hua)(hua)(hua)(hua)(hua)药(yao)(yao)脱落和花(hua)(hua)(hua)(hua)(hua)被片(pian)完全(quan)闭(bi)合(he)。高(gao)葶(ting)(ting)韭内(nei)轮(lun)花(hua)(hua)(hua)(hua)(hua)丝先于(yu)外轮(lun)花(hua)(hua)(hua)(hua)(hua)丝伸(shen)(shen)长(zhang),内(nei)轮(lun)花(hua)(hua)(hua)(hua)(hua)药(yao)(yao)先伸(shen)(shen)出花(hua)(hua)(hua)(hua)(hua)被片(pian),随后(hou)外轮(lun)花(hua)(hua)(hua)(hua)(hua)药(yao)(yao)陆续伸(shen)(shen)出花(hua)(hua)(hua)(hua)(hua)被片(pian)。雄(xiong)蕊(rui)(rui)开放(fang)至6枚(mei)(mei)花(hua)(hua)(hua)(hua)(hua)药(yao)(yao)全(quan)部脱落4~5 d。单(dan)枚(mei)(mei)花(hua)(hua)(hua)(hua)(hua)药(yao)(yao)从散粉(fen)到完全(quan)散粉(fen)一般需要1.5~2.0 h。散粉(fen)后(hou)高(gao)葶(ting)(ting)韭花(hua)(hua)(hua)(hua)(hua)粉(fen)活力(li)(萌(meng)发(fa)(fa)率) 0~10 h内(nei)超过(guo)50%。0.5%氯化(hua)三(san)苯基四氮唑(zuo)、四甲基偶(ou)氮唑(zuo)、联苯胺和离体萌(meng)发(fa)(fa)法(fa)可(ke)以用来检验(yan)高(gao)葶(ting)(ting)韭花(hua)(hua)(hua)(hua)(hua)粉(fen)活力(li)和花(hua)(hua)(hua)(hua)(hua)粉(fen)萌(meng)发(fa)(fa)率,而醋酸洋红和碘(dian)碘(dian)化(hua)钾(jia)不适合(he)高(gao)葶(ting)(ting)韭花(hua)(hua)(hua)(hua)(hua)粉(fen)育性的(de)测(ce)定。高(gao)葶(ting)(ting)韭具有雌雄(xiong)异熟、雄(xiong)蕊(rui)(rui)先熟于(yu)雌蕊(rui)(rui)的(de)花(hua)(hua)(hua)(hua)(hua)部特征(zheng),花(hua)(hua)(hua)(hua)(hua)粉(fen)可(ke)育且寿命(ming)短。
黄花棘豆水浸提液对3种植物种子萌发和幼苗生长的影响
2012, 6(4): 567-570.
[摘要](1295) [PDF 396KB](704)
摘要:
研(yan)究了黄(huang)花(hua)棘(ji)豆(dou)(Oxytropis ochrocephala)的(de)(de)(de)水(shui)浸(jin)提(ti)液(ye)(ye)对垂(chui)穗(sui)披碱草(cao)(Elymus nutans)、醉马(ma)草(cao)(Achnatherum inebrians)、多叶(ye)老芒麦(Elymus sibiricus cv.Duoye)种子萌发(fa)(fa)和幼苗生(sheng)长的(de)(de)(de)影(ying)(ying)(ying)响(xiang)。结(jie)果表(biao)(biao)明,不(bu)同(tong)浓度黄(huang)花(hua)棘(ji)豆(dou)水(shui)浸(jin)提(ti)液(ye)(ye)对种子的(de)(de)(de)萌发(fa)(fa)影(ying)(ying)(ying)响(xiang)不(bu)同(tong),除4%和20%的(de)(de)(de)黄(huang)花(hua)棘(ji)豆(dou)水(shui)浸(jin)提(ti)液(ye)(ye)对醉马(ma)草(cao)种子萌发(fa)(fa)无显著(zhu)影(ying)(ying)(ying)响(xiang)外,其(qi)他各浓度的(de)(de)(de)提(ti)取液(ye)(ye)对3种植(zhi)物(wu)的(de)(de)(de)发(fa)(fa)芽率均有显著(zhu)影(ying)(ying)(ying)响(xiang)。4%黄(huang)花(hua)棘(ji)豆(dou)的(de)(de)(de)水(shui)浸(jin)提(ti)液(ye)(ye)对醉马(ma)草(cao)根长无显著(zhu)影(ying)(ying)(ying)响(xiang),其(qi)他各浓度的(de)(de)(de)提(ti)取液(ye)(ye)都抑制了3种植(zhi)物(wu)幼苗的(de)(de)(de)生(sheng)长。4%、20%和100%的(de)(de)(de)黄(huang)花(hua)棘(ji)豆(dou)水(shui)浸(jin)提(ti)液(ye)(ye)对3种植(zhi)物(wu)影(ying)(ying)(ying)响(xiang)的(de)(de)(de)综合效应均表(biao)(biao)现为抑制作(zuo)用(yong)。
氮与pH互作对菊苣4项生理指标的影响
2012, 6(4): 571-576.
[摘要](1200) [PDF 493KB](643)
摘要:
采用65.305,130.610和(he)(he)(he)(he)261.220 mgL-1 三个质量(liang)浓度氮(dan)(dan)的改良Hoagland营(ying)养(yang)液及(ji)5.5、7.0和(he)(he)(he)(he)8.5三个pH水平完全随机等(deng)重复沙培试验,探(tan)讨了氮(dan)(dan)与pH互作(zuo)(zuo)(zuo)对菊(ju)(ju)苣(Cichorium intybus)叶(ye)(ye)片(pian)叶(ye)(ye)绿素(su)(su)和(he)(he)(he)(he)丙二醛含(han)量(liang)(MDA)及(ji)过氧化(hua)(hua)物酶(POD)和(he)(he)(he)(he)超氧化(hua)(hua)物歧化(hua)(hua)酶(SOD)活性(xing)等(deng)生(sheng)理指(zhi)标(biao)的影响(xiang)。结果表明,1)在(zai)不同(tong)氮(dan)(dan)浓度处理时(shi)(shi),菊(ju)(ju)苣叶(ye)(ye)片(pian)叶(ye)(ye)绿素(su)(su)和(he)(he)(he)(he)MDA含(han)量(liang)无(wu)显著(zhu)变(bian)化(hua)(hua),而POD和(he)(he)(he)(he)SOD活性(xing)显著(zhu)上升;2)在(zai)不同(tong)pH处理时(shi)(shi),菊(ju)(ju)苣叶(ye)(ye)片(pian)叶(ye)(ye)绿素(su)(su)含(han)量(liang)有显著(zhu)变(bian)化(hua)(hua),MDA含(han)量(liang)无(wu)显著(zhu)变(bian)化(hua)(hua),而POD和(he)(he)(he)(he)SOD活性(xing)显著(zhu)上升;3)氮(dan)(dan)与pH互作(zuo)(zuo)(zuo)对菊(ju)(ju)苣生(sheng)长有显著(zhu)影响(xiang);菊(ju)(ju)苣叶(ye)(ye)片(pian)叶(ye)(ye)绿素(su)(su)含(han)量(liang)在(zai)高氮(dan)(dan)低pH互作(zuo)(zuo)(zuo)下(xia)最(zui)高,且(qie)(qie)随施氮(dan)(dan)量(liang)的增加(jia)持续(xu)增加(jia);MDA含(han)量(liang)在(zai)高氮(dan)(dan)低pH互作(zuo)(zuo)(zuo)下(xia)最(zui)低,且(qie)(qie)在(zai)氮(dan)(dan)或pH胁(xie)迫(po)时(shi)(shi)变(bian)化(hua)(hua)甚微;POD和(he)(he)(he)(he)SOD活性(xing)在(zai)高氮(dan)(dan)高pH互作(zuo)(zuo)(zuo)下(xia)活性(xing)最(zui)低,且(qie)(qie)在(zai)受(shou)到氮(dan)(dan)或pH胁(xie)迫(po)时(shi)(shi)变(bian)化(hua)(hua)显著(zhu)。
放牧对高寒草地4种草光响应和荧光特性的影响
2012, 6(4): 577-585.
[摘要](1316) [PDF 703KB](753)
摘要:
在祁连山东段(duan)天祝县南泥(ni)沟河谷地的(de)披碱(jian)草(cao)(cao)-嵩草(cao)(cao)型草(cao)(cao)地设置禁牧(mu)(Nongrazing grassland,NG)和(he)放牧(mu)(Grazing grassland,G)两块样(yang)地,选取矮(ai)嵩草(cao)(cao)(Kobresia humilis)、垂穗披碱(jian)草(cao)(cao)(Elymus nutans)、扁蓿豆(Melissitus rutenica)、黄花棘(ji)豆(Oxytropis ochrocephala)4种(zhong)优(you)势植(zhi)(zhi)物(wu),测定了4种(zhong)植(zhi)(zhi)物(wu)的(de)光(guang)(guang)(guang)合(he)-光(guang)(guang)(guang)响(xiang)应曲线(xian)(PnPAR curves)和(he)叶绿素(su)荧光(guang)(guang)(guang)特(te)性。结果(guo)显(xian)(xian)示(shi),4种(zhong)植(zhi)(zhi)物(wu)在放牧(mu)后(hou): 1)对(dui)强(qiang)光(guang)(guang)(guang)的(de)适(shi)应能力(li)增(zeng)强(qiang)而对(dui)弱光(guang)(guang)(guang)的(de)利(li)用能力(li)降(jiang)低(di)。垂穗披碱(jian)草(cao)(cao)、矮(ai)嵩草(cao)(cao)、扁蓿豆的(de)最(zui)大净光(guang)(guang)(guang)合(he)速率(Pmax)显(xian)(xian)著(zhu)降(jiang)低(di),即(ji)光(guang)(guang)(guang)合(he)潜力(li)降(jiang)低(di);而黄花棘(ji)豆的(de)Pmax却(que)显(xian)(xian)著(zhu)升高,光(guang)(guang)(guang)合(he)能力(li)增(zeng)强(qiang)。2)叶绿素(su)初始荧光(guang)(guang)(guang)(F0)成像颜(yan)色加深(shen),说明叶绿素(su)含量(liang)有所降(jiang)低(di),尤以垂穗披碱(jian)草(cao)(cao)、矮(ai)嵩草(cao)(cao)最(zui)为(wei)明显(xian)(xian)。3)PSⅡ最(zui)大量(liang)子产量(liang)(Fv/Fm)、光(guang)(guang)(guang)化学猝灭系数(qP)、电子传递速率(ETR)值显(xian)(xian)著(zhu)降(jiang)低(di),而非光(guang)(guang)(guang)化学猝灭系数(NPQ)值升高。综合(he)各项(xiang)指标(biao)来(lai)看,放牧(mu)后(hou)黄花棘(ji)豆这(zhei)种(zhong)毒(du)草(cao)(cao)的(de)光(guang)(guang)(guang)合(he)能力(li)提(ti)高,而其他3种(zhong)优(you)质牧(mu)草(cao)(cao)的(de)光(guang)(guang)(guang)合(he)能力(li)下降(jiang)。
氮磷钾对桔梗生长及次生代谢产物的影响
2012, 6(4): 586-591.
[摘要](1139) [PDF 444KB](891)
摘要:
通过田间试验(yan),采用氮、磷(lin)(lin)、钾(jia)(jia)三(san)因素(su)二次(ci)D饱和(he)最(zui)优设计研究(jiu)了氮、磷(lin)(lin)、钾(jia)(jia)肥(fei)及其配比施(shi)肥(fei)对(dui)桔(jie)(jie)梗(geng)(geng)(geng)(Platycodon grandiflorum)生长及次(ci)生代(dai)谢产物的影响。试验(yan)结果表(biao)明,施(shi)肥(fei)能(neng)显著(zhu)提(ti)高桔(jie)(jie)梗(geng)(geng)(geng)药(yao)材(cai)产量(liang),氮、磷(lin)(lin)、钾(jia)(jia)元素(su)对(dui)桔(jie)(jie)梗(geng)(geng)(geng)药(yao)材(cai)产量(liang)影响依(yi)次(ci)为氮钾(jia)(jia)磷(lin)(lin)。氮、磷(lin)(lin)、钾(jia)(jia)元素(su)对(dui)桔(jie)(jie)梗(geng)(geng)(geng)总(zong)皂苷含(han)量(liang)影响依(yi)次(ci)为氮钾(jia)(jia)磷(lin)(lin),对(dui)桔(jie)(jie)梗(geng)(geng)(geng)植株多糖(tang)含(han)量(liang)影响依(yi)次(ci)为磷(lin)(lin)氮钾(jia)(jia);氮、磷(lin)(lin)对(dui)黄酮积累表(biao)现出一定负效应(ying)。依(yi)据桔(jie)(jie)梗(geng)(geng)(geng)药(yao)材(cai)产量(liang)及总(zong)皂苷含(han)量(liang)提(ti)出桔(jie)(jie)梗(geng)(geng)(geng)合(he)理施(shi)肥(fei)方(fang)案为N 150 kghm-2、P2O5 79.41 kghm-2、K2O 225 kghm-2。
同氮素水平对大丽花形态指标及生理特性的影响
2012, 6(4): 592-598.
[摘要](1135) [PDF 462KB](693)
摘要:
采用盆栽试验(yan),研究了施(shi)纯氮(dan)(dan) 0、0.15、0.30和(he)0.45 gkg-1对大(da)(da)丽花(hua)(Dahlia pinnata)品种深(shen)玫(mei)红形态指标及(ji)叶片生理特性(xing)(xing)的(de)影响(xiang),以(yi)确定(ding)大(da)(da)丽花(hua)最佳的(de)氮(dan)(dan)肥用量(liang)。结果表明(ming),与不施(shi)氮(dan)(dan)相比,在一定(ding)施(shi)氮(dan)(dan)范(fan)围内(nei),随施(shi)氮(dan)(dan)量(liang)的(de)提(ti)高(gao)(gao),大(da)(da)丽花(hua)茎粗、叶面积、花(hua)径、花(hua)期及(ji)块根(gen)质(zhi)量(liang)之增(zeng)加(jia);叶片中叶绿素、可溶(rong)性(xing)(xing)蛋(dan)白和(he)脯氨酸(suan)(suan)含量(liang)显(xian)著增(zeng)加(jia);超(chao)氧化(hua)物(wu)歧化(hua)酶、过(guo)氧化(hua)物(wu)酶和(he)过(guo)氧化(hua)氢(qing)酶的(de)活(huo)性(xing)(xing)也(ye)显(xian)著提(ti)高(gao)(gao),丙二醛含量(liang)显(xian)著降低,增(zeng)强了质(zhi)膜稳定(ding)性(xing)(xing),抑(yi)(yi)制了膜的(de)渗漏,加(jia)强了细胞膜的(de)保护功能(neng);硝酸(suan)(suan)还原酶活(huo)性(xing)(xing)显(xian)著增(zeng)加(jia),促(cu)进(jin)了大(da)(da)丽花(hua)氮(dan)(dan)素代谢。当氮(dan)(dan)过(guo)量(liang)时,除叶面积和(he)脯氨酸(suan)(suan)含量(liang)外,上述指标均(jun)有不同程(cheng)度的(de)下降。说明(ming)适度增(zeng)加(jia)氮(dan)(dan)用量(liang)对大(da)(da)丽花(hua)生长发(fa)育有促(cu)进(jin)作用,能(neng)够延(yan)缓衰老,提(ti)高(gao)(gao)其观赏价(jia)值,施(shi)氮(dan)(dan)过(guo)量(liang)则会起到(dao)抑(yi)(yi)制作用。在本试验(yan)条件(jian)下,盆栽(每盆基质(zhi)12 kg)大(da)(da)丽花(hua)的(de)推荐施(shi)氮(dan)(dan)量(liang)为0.30 gkg-1。
地毯草耐盐浓度梯度筛选与临界盐浓度研究
2012, 6(4): 599-604.
[摘要](1181) [PDF 487KB](944)
摘要:
以(yi)(yi)(yi)地(di)(di)毯草(cao)(Axonopus compressus)为对象,利(li)用(yong)(yong)水培法进(jin)行耐(nai)盐(yan)鉴定,初步研究不同盐(yan)浓度(du)(du)对地(di)(di)毯草(cao)坪(ping)用(yong)(yong)品质、叶色和枯(ku)黄(huang)(huang)率(lv)的(de)影响,并对地(di)(di)毯草(cao)耐(nai)盐(yan)性进(jin)行了(le)评价(jia)(jia)。结果表明,不同的(de)处(chu)理(li)之间(jian)存(cun)在(zai)(zai)(zai)显(xian)著(zhu)(zhu)或极显(xian)著(zhu)(zhu)性差(cha)异,在(zai)(zai)(zai)低浓度(du)(du)处(chu)理(li)下(xia)(0~120 mmolL-1),叶色和坪(ping)用(yong)(yong)品质得分(fen)6分(fen)以(yi)(yi)(yi)上;而在(zai)(zai)(zai)高浓度(du)(du)处(chu)理(li)下(xia)(140~180 mmolL-1),景观价(jia)(jia)值低于6分(fen)。叶片枯(ku)黄(huang)(huang)率(lv)与(yu)之正好(hao)相反,在(zai)(zai)(zai)低浓度(du)(du)下(xia)(0~140 mmolL-1),枯(ku)黄(huang)(huang)率(lv)较低;而在(zai)(zai)(zai)高浓度(du)(du)下(xia)(160~180 mmolL-1),枯(ku)黄(huang)(huang)率(lv)超过(guo)50%,从(cong)而导致地(di)(di)毯草(cao)草(cao)坪(ping)观赏价(jia)(jia)值过(guo)低。通过(guo)建立回归方程(cheng),以(yi)(yi)(yi)枯(ku)黄(huang)(huang)率(lv)50%作为确定存(cun)活的(de)临(lin)界(jie)值指标,求(qiu)得地(di)(di)毯草(cao)具有(you)盐(yan)半致死临(lin)界(jie)浓度(du)(du)为141 mmolL-1。
绿洲区不同苜蓿品种生长特征分析
2012, 6(4): 605-609.
[摘要](1201) [PDF 378KB](629)
摘要:
对5个紫花苜(mu)(mu)蓿(xu)(xu)(Medicago sativa)品(pin)(pin)种(zhong)(zhong)(zhong)各茬(cha)(cha)(cha)(cha)的株高(gao)、干(gan)(gan)草产(chan)(chan)量、叶茎比以及营养成分进行分析。结果(guo)表明(ming),各苜(mu)(mu)蓿(xu)(xu)品(pin)(pin)种(zhong)(zhong)(zhong)株高(gao)和(he)(he)(he)干(gan)(gan)草产(chan)(chan)量随着(zhe)茬(cha)(cha)(cha)(cha)次(ci)的增加而降(jiang)低,但(dan)品(pin)(pin)种(zhong)(zhong)(zhong)间各茬(cha)(cha)(cha)(cha)次(ci)存(cun)在差异(yi);生长季内3茬(cha)(cha)(cha)(cha)的苜(mu)(mu)蓿(xu)(xu)株高(gao)和(he)(he)(he)干(gan)(gan)草产(chan)(chan)量WL323和(he)(he)(he)三得(de)(de)利表现(xian)(xian)(xian)最(zui)(zui)好(hao)(hao)。各品(pin)(pin)种(zhong)(zhong)(zhong)中粗(cu)蛋(dan)白和(he)(he)(he)粗(cu)脂肪含(han)量第(di)2、3茬(cha)(cha)(cha)(cha)高(gao)于(yu)第(di)1茬(cha)(cha)(cha)(cha),尤(you)其是(shi)第(di)2茬(cha)(cha)(cha)(cha)明(ming)显高(gao)于(yu)第(di)1茬(cha)(cha)(cha)(cha)、第(di)3茬(cha)(cha)(cha)(cha),而粗(cu)纤维含(han)量则(ze)相反;而品(pin)(pin)种(zhong)(zhong)(zhong)间在主要营养物质含(han)量方(fang)面则(ze)是(shi)三得(de)(de)利和(he)(he)(he)WL323表现(xian)(xian)(xian)最(zui)(zui)好(hao)(hao)。综(zong)合几项(xiang)指标,三得(de)(de)利和(he)(he)(he)WL323在绿(lv)洲区表现(xian)(xian)(xian)特(te)征最(zui)(zui)好(hao)(hao),阿尔冈金表现(xian)(xian)(xian)不佳。从不同(tong)品(pin)(pin)种(zhong)(zhong)(zhong)各茬(cha)(cha)(cha)(cha)次(ci)生产(chan)(chan)经(jing)济性状(zhuang)综(zong)合来看,第(di)2茬(cha)(cha)(cha)(cha)的效应最(zui)(zui)好(hao)(hao),可(ke)见,第(di)2茬(cha)(cha)(cha)(cha)苜(mu)(mu)蓿(xu)(xu)是(shi)获得(de)(de)理想(xiang)苜(mu)(mu)蓿(xu)(xu)干(gan)(gan)草的重要时期。
10个引进紫花苜蓿品种生产性能及持久性比较
2012, 6(4): 610-614.
[摘要](1415) [PDF 374KB](801)
摘要:
以(yi)国外引进(jin)(jin)(jin)的(de)10个(ge)紫(zi)花(hua)(hua)苜(mu)(mu)蓿(Medicago sativa)品(pin)(pin)种(zhong)(zhong)为试验材(cai)料(liao),通(tong)过对其(qi)(qi)产(chan)(chan)草量(liang)(liang)(liang)及营养品(pin)(pin)质(zhi)进(jin)(jin)(jin)行测定,探讨引进(jin)(jin)(jin)紫(zi)花(hua)(hua)苜(mu)(mu)蓿品(pin)(pin)种(zhong)(zhong)在(zai)(zai)昆明(ming)地区(qu)的(de)生(sheng)(sheng)产(chan)(chan)性(xing)(xing)(xing)能(neng)(neng)和(he)(he)(he)持(chi)久性(xing)(xing)(xing),为我国南方(fang)地区(qu)紫(zi)花(hua)(hua)苜(mu)(mu)蓿的(de)引种(zhong)(zhong)栽培提供参考。结(jie)果表明(ming),1)生(sheng)(sheng)长(zhang)(zhang)第(di)(di)2年、第(di)(di)6年,10个(ge)引进(jin)(jin)(jin)紫(zi)花(hua)(hua)苜(mu)(mu)蓿品(pin)(pin)种(zhong)(zhong)的(de)产(chan)(chan)草量(liang)(liang)(liang)、株(zhu)高、叶茎比、粗蛋(dan)白、粗脂肪(fang)、粗灰(hui)分含量(liang)(liang)(liang)以(yi)GT13R、射(she)手(shou)2号(hao)(hao)显(xian)著(zhu)高于其(qi)(qi)他品(pin)(pin)种(zhong)(zhong),而粗纤维(wei)(CF)含量(liang)(liang)(liang)显(xian)著(zhu)低于其(qi)(qi)他品(pin)(pin)种(zhong)(zhong)(P<0.05);2)随着生(sheng)(sheng)长(zhang)(zhang)年限由(you)第(di)(di)2年延(yan)长(zhang)(zhang)至第(di)(di)6年,10个(ge)引进(jin)(jin)(jin)紫(zi)花(hua)(hua)苜(mu)(mu)蓿品(pin)(pin)种(zhong)(zhong)的(de)生(sheng)(sheng)产(chan)(chan)性(xing)(xing)(xing)能(neng)(neng)和(he)(he)(he)营养品(pin)(pin)质(zhi)均呈下降(jiang)趋(qu)势,以(yi)品(pin)(pin)种(zhong)(zhong)爱林+2和(he)(he)(he)超级(ji)13R下降(jiang)最为显(xian)著(zhu);3)灰(hui)色关联综(zong)合评价(jia)结(jie)果表明(ming),品(pin)(pin)种(zhong)(zhong)GT13R和(he)(he)(he)射(she)手(shou)2号(hao)(hao)生(sheng)(sheng)产(chan)(chan)性(xing)(xing)(xing)能(neng)(neng)和(he)(he)(he)持(chi)久性(xing)(xing)(xing)最好,是最适宜在(zai)(zai)昆明(ming)地区(qu)种(zhong)(zhong)植的(de)品(pin)(pin)种(zhong)(zhong);品(pin)(pin)种(zhong)(zhong)射(she)手(shou)、爱博(bo)、爱林+2和(he)(he)(he)超级(ji)13R的(de)生(sheng)(sheng)产(chan)(chan)性(xing)(xing)(xing)能(neng)(neng)和(he)(he)(he)持(chi)久性(xing)(xing)(xing)较差,不适宜在(zai)(zai)云南省北(bei)亚热带气候(hou)条件建植多年生(sheng)(sheng)栽培草地。
四儿滩地区植物种群的生态位
2012, 6(4): 615-623.
[摘要](1230) [PDF 518KB](604)
摘要:
本研究运(yun)用Levins生(sheng)(sheng)(sheng)态(tai)(tai)位(wei)宽度(du)(du)指数(shu)(shu)及(ji)Pianka生(sheng)(sheng)(sheng)态(tai)(tai)位(wei)重(zhong)(zhong)(zhong)叠指数(shu)(shu),对宁(ning)夏盐池(chi)四(si)儿(er)滩(tan)湿(shi)地(di)的(de)(de)(de)(de)植(zhi)物(wu)生(sheng)(sheng)(sheng)态(tai)(tai)位(wei)宽度(du)(du)及(ji)生(sheng)(sheng)(sheng)态(tai)(tai)位(wei)重(zhong)(zhong)(zhong)叠度(du)(du)进行了研究,深入(ru)了解湿(shi)地(di)植(zhi)被(bei)的(de)(de)(de)(de)特(te)征,为半(ban)干旱(han)区天然湿(shi)地(di)的(de)(de)(de)(de)植(zhi)被(bei)保护(hu)和生(sheng)(sheng)(sheng)态(tai)(tai)恢(hui)复提供(gong)参考方法。结果表(biao)明(ming),湿(shi)地(di)周边不同样(yang)线(xian)的(de)(de)(de)(de)主要(yao)优势种(zhong)各不相同,可见(jian)湿(shi)地(di)生(sheng)(sheng)(sheng)态(tai)(tai)系统中植(zhi)物(wu)种(zhong)群呈聚集分(fen)布的(de)(de)(de)(de)特(te)点。四(si)条样(yang)线(xian)中西、北两(liang)条样(yang)线(xian)的(de)(de)(de)(de)植(zhi)被(bei)生(sheng)(sheng)(sheng)长状况(kuang)较好,而东、南样(yang)线(xian)的(de)(de)(de)(de)植(zhi)被(bei)则相对较差。刺沙(sha)蓬(Salsola pestifer)、阿尔泰狗娃花(hua)(Heteropappus altaicus)、沙(sha)鞭(Psammochloa villosa)、苦豆子(Sophora alopecuroides)是(shi)四(si)儿(er)滩(tan)湿(shi)地(di)的(de)(de)(de)(de)主要(yao)优势种(zhong),蒲公英(Herba taraxaci)、紫菀(Aster tataricus)、虎(hu)尾草(Lysimachia barystachys)、角蒿(Incarvillea sinensis)、香青(qing)兰(Dracocephalum moldavica)、沙(sha)葱(Allium mongolicum)、黑沙(sha)蒿(Artemisia ordosica)等是(shi)四(si)儿(er)滩(tan)湿(shi)地(di)的(de)(de)(de)(de)特(te)化种(zhong)。四(si)儿(er)滩(tan)湿(shi)地(di)的(de)(de)(de)(de)生(sheng)(sheng)(sheng)态(tai)(tai)位(wei)重(zhong)(zhong)(zhong)叠度(du)(du)统计结果显示,生(sheng)(sheng)(sheng)态(tai)(tai)位(wei)宽度(du)(du)大的(de)(de)(de)(de)物(wu)种(zhong)与其他物(wu)种(zhong)的(de)(de)(de)(de)重(zhong)(zhong)(zhong)叠度(du)(du)指数(shu)(shu)不一定大,生(sheng)(sheng)(sheng)态(tai)(tai)位(wei)宽度(du)(du)和较高的(de)(de)(de)(de)生(sheng)(sheng)(sheng)态(tai)(tai)位(wei)重(zhong)(zhong)(zhong)叠度(du)(du)之间(jian)并(bing)不存在直接的(de)(de)(de)(de)线(xian)性关(guan)系,这一现象从另外一个角度(du)(du)说明(ming)了湿(shi)地(di)生(sheng)(sheng)(sheng)态(tai)(tai)系统资源环(huan)境存在高度(du)(du)的(de)(de)(de)(de)空间(jian)异质性。
东大河林区青海云杉林健康评价
刘建泉, 孙建忠
2012, 6(4): 624-628.
[摘要](1301) [PDF 388KB](693)
摘要:
以2008年青海(hai)(hai)(hai)(hai)(hai)云(yun)杉(shan)(shan)(shan)(Picea classifolia)林(lin)(lin)(lin)(lin)样(yang)(yang)地(di)(di)调查资料为(wei)基础,用主成分分析、聚类分析、森林(lin)(lin)(lin)(lin)健(jian)(jian)康综合评价(jia)模型(xing)的(de)(de)(de)方(fang)法,对东大河(he)林(lin)(lin)(lin)(lin)区(qu)青海(hai)(hai)(hai)(hai)(hai)云(yun)杉(shan)(shan)(shan)林(lin)(lin)(lin)(lin)的(de)(de)(de)森林(lin)(lin)(lin)(lin)健(jian)(jian)康状(zhuang)况进行(xing)了综合评价(jia),结果(guo)表明(ming),反映青海(hai)(hai)(hai)(hai)(hai)云(yun)杉(shan)(shan)(shan)林(lin)(lin)(lin)(lin)健(jian)(jian)康状(zhuang)况的(de)(de)(de)自然(ran)环境(jing)、群落特征、恢复力、生产(chan)力和生产(chan)潜力5个(ge)(ge)(ge)(ge)(ge)方(fang)面19个(ge)(ge)(ge)(ge)(ge)指(zhi)标,能够初步(bu)构建青海(hai)(hai)(hai)(hai)(hai)云(yun)杉(shan)(shan)(shan)林(lin)(lin)(lin)(lin)的(de)(de)(de)健(jian)(jian)康评价(jia)指(zhi)标体(ti)系。影响青海(hai)(hai)(hai)(hai)(hai)云(yun)杉(shan)(shan)(shan)林(lin)(lin)(lin)(lin)健(jian)(jian)康状(zhuang)况的(de)(de)(de)主要指(zhi)标有群落类型(xing)、郁闭(bi)度、灌木(mu)层(ceng)盖度、林(lin)(lin)(lin)(lin)分蓄积量、土壤(rang)吸湿(shi)水、土壤(rang)含(han)水率6个(ge)(ge)(ge)(ge)(ge)。将(jiang)13个(ge)(ge)(ge)(ge)(ge)青海(hai)(hai)(hai)(hai)(hai)云(yun)杉(shan)(shan)(shan)林(lin)(lin)(lin)(lin)样(yang)(yang)地(di)(di)划分为(wei)健(jian)(jian)康、亚健(jian)(jian)康、不(bu)健(jian)(jian)康3类,健(jian)(jian)康样(yang)(yang)地(di)(di)包(bao)(bao)括7个(ge)(ge)(ge)(ge)(ge)苔藓(xian)-青海(hai)(hai)(hai)(hai)(hai)云(yun)杉(shan)(shan)(shan)林(lin)(lin)(lin)(lin)样(yang)(yang)地(di)(di),占(zhan)53.82%;亚健(jian)(jian)康林(lin)(lin)(lin)(lin)包(bao)(bao)括1个(ge)(ge)(ge)(ge)(ge)苔藓(xian)-青海(hai)(hai)(hai)(hai)(hai)云(yun)杉(shan)(shan)(shan)林(lin)(lin)(lin)(lin)样(yang)(yang)地(di)(di)和3个(ge)(ge)(ge)(ge)(ge)草(cao)类-青海(hai)(hai)(hai)(hai)(hai)云(yun)杉(shan)(shan)(shan)林(lin)(lin)(lin)(lin)样(yang)(yang)地(di)(di),占(zhan)30.77%;不(bu)健(jian)(jian)康林(lin)(lin)(lin)(lin)包(bao)(bao)括2个(ge)(ge)(ge)(ge)(ge)灌木(mu)-青海(hai)(hai)(hai)(hai)(hai)云(yun)杉(shan)(shan)(shan)林(lin)(lin)(lin)(lin)样(yang)(yang)地(di)(di),占(zhan)15.38%。
长沙城市湿地植物多样性研究
戴兴安, 胡曰利
2012, 6(4): 629-635.
[摘要](1335) [PDF 451KB](719)
摘要:
以长沙市辖五(wu)区(qu)及周边郊(jiao)区(qu)10 km范围内湿(shi)(shi)地(di)(di)为(wei)研究对(dui)象,对(dui)不同湿(shi)(shi)地(di)(di)类(lei)型(xing)植(zhi)(zhi)(zhi)物(wu)(wu)(wu)(wu)(wu)物(wu)(wu)(wu)(wu)(wu)种(zhong)(zhong)(zhong)多(duo)(duo)(duo)样(yang)性及其变化特(te)(te)征进行(xing)了(le)分析,根(gen)据不同湿(shi)(shi)地(di)(di)类(lei)型(xing)中(zhong)植(zhi)(zhi)(zhi)物(wu)(wu)(wu)(wu)(wu)种(zhong)(zhong)(zhong)组成,探讨了(le)植(zhi)(zhi)(zhi)物(wu)(wu)(wu)(wu)(wu)种(zhong)(zhong)(zhong)在湿(shi)(shi)地(di)(di)中(zhong)的分布及定居特(te)(te)点。研究表(biao)明(ming),长沙市不同湿(shi)(shi)地(di)(di)类(lei)型(xing)中(zhong)主(zhu)(zhu)要有(you)芦苇(Phragmites australis)、菖(chang)蒲(Acorus calamus)、菱(Trapa bispinosa)、野艾蒿(hao)(Artemisia lavandulaefolia)、问荆(Equisetum arvense)、苍耳(er)(Xanthium sibiricum)、一年(nian)蓬(Erigeron annuus)、空(kong)心莲子草(Alternanthera philoxeroides)等20个(ge)植(zhi)(zhi)(zhi)物(wu)(wu)(wu)(wu)(wu)群落(luo);植(zhi)(zhi)(zhi)被类(lei)型(xing)以草本(ben)群落(luo)为(wei)主(zhu)(zhu),并且主(zhu)(zhu)要为(wei)二(er)年(nian)或多(duo)(duo)(duo)年(nian)生(sheng)(sheng)植(zhi)(zhi)(zhi)物(wu)(wu)(wu)(wu)(wu),共(gong)有(you)24种(zhong)(zhong)(zhong),其次(ci)有(you)14种(zhong)(zhong)(zhong)一年(nian)生(sheng)(sheng)草本(ben),而灌木(mu)与乔(qiao)木(mu)等木(mu)本(ben)植(zhi)(zhi)(zhi)物(wu)(wu)(wu)(wu)(wu)分布较(jiao)少(shao);不同湿(shi)(shi)地(di)(di)类(lei)型(xing)植(zhi)(zhi)(zhi)物(wu)(wu)(wu)(wu)(wu)种(zhong)(zhong)(zhong)丰富(fu)度(du)差(cha)异不大,植(zhi)(zhi)(zhi)物(wu)(wu)(wu)(wu)(wu)种(zhong)(zhong)(zhong)丰富(fu)度(du)最高为(wei)23个(ge)种(zhong)(zhong)(zhong),其中(zhong)特(te)(te)有(you)种(zhong)(zhong)(zhong)只有(you)5个(ge)。从河(he)流(liu)湿(shi)(shi)地(di)(di)到(dao)沟渠(qu)(qu),种(zhong)(zhong)(zhong)多(duo)(duo)(duo)样(yang)性指(zhi)数变化没有(you)明(ming)显规律,Simpson指(zhi)数和ShannonWiener指(zhi)数最大的是沟渠(qu)(qu),分别为(wei)18.08和3.75,其次(ci)是山塘水(shui)库;Pielou均匀度(du)指(zhi)数表(biao)现出(chu)与多(duo)(duo)(duo)样(yang)性指(zhi)数大体一致的状况,沟渠(qu)(qu)>山塘>河(he)流(liu)>湖泊>景观水(shui)面。
甘肃夏河高寒牧区紫花苜蓿引种试验
2012, 6(4): 636-639.
[摘要](1205) [PDF 361KB](720)
摘要:
金皇后(hou)(Golden Empress)、阿(a)尔(er)冈金(Algonquin)、苜蓿(xu)王(wang)(Alfaking)、巨人(ren)201(Ameristand 201)4个(ge)紫花苜蓿(xu)(Medicago sativa)品种(zhong)(zhong)原引自美国,2004-2007年在(zai)甘肃省(sheng)夏河县(xian)进行引种(zhong)(zhong)试验,对其生(sheng)育期、生(sheng)长高(gao)度、分(fen)枝数、鲜草(cao)产量、越(yue)冬(dong)率(lv)和抗逆性等(deng)指标进行了测定。结(jie)果表明,4个(ge)紫花苜蓿(xu)品种(zhong)(zhong)产草(cao)量较高(gao),生(sheng)产性能好(hao),播种(zhong)(zhong)第(di)1年平均(jun)越(yue)冬(dong)率(lv)在(zai)70%以上(shang),第(di)2年后(hou)平均(jun)越(yue)冬(dong)率(lv)在(zai)90%以上(shang),抗逆性强,第(di)3年后(hou)部分(fen)种(zhong)(zhong)子成熟,但产籽量较低,适合(he)在(zai)海拔3 000 m的高(gao)寒牧(mu)区推广种(zhong)(zhong)植建(jian)植栽(zai)培草(cao)地。
海拔对高山植物交配系统的影响
2012, 6(4): 640-645.
[摘要](1379) [PDF 424KB](1284)
摘要:
交配(pei)系(xi)(xi)统是(shi)控制遗(yi)传(chuan)物(wu)质在(zai)世代(dai)间(jian)传(chuan)递的(de)(de)(de)(de)直接方(fang)式,影(ying)响(xiang)着植(zhi)(zhi)物(wu)种群(qun)(qun)内和(he)(he)种群(qun)(qun)间(jian)遗(yi)传(chuan)变异分布,决(jue)定(ding)着后代(dai)种群(qun)(qun)的(de)(de)(de)(de)遗(yi)传(chuan)结(jie)构(gou)和(he)(he)遗(yi)传(chuan)多样性。交配(pei)系(xi)(xi)统除了(le)体现植(zhi)(zhi)物(wu)本身(shen)的(de)(de)(de)(de)生物(wu)学特性之外,还因(yin)环(huan)境条件的(de)(de)(de)(de)改(gai)变而(er)(er)发生改(gai)变和(he)(he)进化(hua)。海拔对环(huan)境因(yin)子在(zai)垂直方(fang)向(xiang)上(shang)分布的(de)(de)(de)(de)影(ying)响(xiang)呈现出一(yi)定(ding)的(de)(de)(de)(de)规律性,因(yin)而(er)(er)影(ying)响(xiang)着植(zhi)(zhi)物(wu)的(de)(de)(de)(de)交配(pei)系(xi)(xi)统。对交配(pei)系(xi)(xi)统的(de)(de)(de)(de)进化(hua)模式研(yan)究(jiu)发现,随着海拔的(de)(de)(de)(de)升(sheng)高(gao)交配(pei)系(xi)(xi)统有(you)从异交向(xiang)自(zi)交演变的(de)(de)(de)(de)倾(qing)向(xiang),甚至在(zai)极端环(huan)境下(xia)植(zhi)(zhi)物(wu)的(de)(de)(de)(de)进化(hua)产生多倍体以适应(ying)恶劣的(de)(de)(de)(de)环(huan)境条件。本研(yan)究(jiu)根据大量(liang)已有(you)的(de)(de)(de)(de)研(yan)究(jiu)成果(guo),从海拔影(ying)响(xiang)植(zhi)(zhi)物(wu)交配(pei)系(xi)(xi)统的(de)(de)(de)(de)传(chuan)粉者数量(liang)、区系(xi)(xi)、传(chuan)粉方(fang)式、植(zhi)(zhi)物(wu)生活史、花朵构(gou)件等方(fang)面(mian)进行了(le)总(zong)结(jie)和(he)(he)概述(shu)。
动物生产层
牡丹江市周边农田啮齿动物种群数量及分布规律
2012, 6(4): 646-649.
[摘要](992) [PDF 413KB](719)
摘要:
为了解牡丹江市周边农(nong)(nong)田(tian)中啮(nie)齿动(dong)物(wu)种(zhong)(zhong)群数量和分布变化规律,以及对(dui)农(nong)(nong)业造成(cheng)危害的主要害鼠种(zhong)(zhong)类及其生活习性,于(yu)2010年3-11月通过(guo)实地考察,利用夹日法、挖洞法、水(shui)灌烟熏法采集标本,结果表(biao)明(ming),农(nong)(nong)田(tian)啮(nie)齿动(dong)物(wu)7种(zhong)(zhong),隶属3目5科(ke)7属,黑(hei)线(xian)姬鼠(Apodemus agrarius)为主要优势种(zhong)(zhong);啮(nie)齿动(dong)物(wu)的密度有(you)2个高峰期,分别在6-7月和10月;黑(hei)线(xian)姬鼠和大仓鼠(Cricetulus triton)对(dui)农(nong)(nong)田(tian)危害最为严(yan)重,且(qie)有(you)贮食(shi)行为。根据(ju)调查情况对(dui)害鼠提出防(fang)治措施(shi),为预(yu)防(fang)鼠害提供科(ke)学依据(ju)。
后生物生产层
尖叶胡枝子青贮微生物数量变化及发酵特性
2012, 6(4): 650-657.
[摘要](1370) [PDF 486KB](786)
摘要:
以尖(jian)叶胡枝子(zi)(Lespedeza hedysaroides)为原料(liao),对其表面附生(sheng)(sheng)的2株乳(ru)(ru)酸(suan)(suan)(suan)菌(jun)(jun)(LH29、LH33)的生(sheng)(sheng)化(hua)特性(xing)、生(sheng)(sheng)长特性(xing)、产(chan)酸(suan)(suan)(suan)速率(lv)进行了研究(jiu),经(jing)传(chuan)统鉴(jian)定(ding)方(fang)法(fa)及(ji)(ji)16S rRNA分析方(fang)法(fa)鉴(jian)定(ding),LH29为戊(wu)糖(tang)(tang)片球(qiu)菌(jun)(jun),LH33为植物(wu)乳(ru)(ru)杆(gan)菌(jun)(jun);发(fa)(fa)(fa)酵(jiao)(jiao)(jiao)初期(qi)戊(wu)糖(tang)(tang)片球(qiu)菌(jun)(jun)产(chan)酸(suan)(suan)(suan)速率(lv)优于(yu)植物(wu)乳(ru)(ru)杆(gan)菌(jun)(jun),发(fa)(fa)(fa)酵(jiao)(jiao)(jiao)中后(hou)期(qi)后(hou)者产(chan)酸(suan)(suan)(suan)速率(lv)优于(yu)前者;将SNOW LACTL (SL)和纤维素(su)酶(AC) 2种(zhong)添(tian)加(jia)(jia)剂(ji)添(tian)加(jia)(jia)至尖(jian)叶胡枝子(zi)中,研究(jiu)了不同发(fa)(fa)(fa)酵(jiao)(jiao)(jiao)时(shi)间微生(sheng)(sheng)物(wu)数(shu)(shu)量(liang)(liang)(liang)(liang)的动(dong)态(tai)变化(hua)及(ji)(ji)发(fa)(fa)(fa)酵(jiao)(jiao)(jiao)品质。发(fa)(fa)(fa)酵(jiao)(jiao)(jiao)初期(qi),各种(zhong)微生(sheng)(sheng)物(wu)的数(shu)(shu)量(liang)(liang)(liang)(liang)较青(qing)贮(zhu)(zhu)原料(liao)上的数(shu)(shu)量(liang)(liang)(liang)(liang)有较大的增(zeng)长,发(fa)(fa)(fa)酵(jiao)(jiao)(jiao)第2天(tian),添(tian)加(jia)(jia)AC处(chu)理组(zu)的乳(ru)(ru)酸(suan)(suan)(suan)菌(jun)(jun)数(shu)(shu)量(liang)(liang)(liang)(liang)最高(gao),SL+AC添(tian)加(jia)(jia)组(zu)的乳(ru)(ru)酸(suan)(suan)(suan)菌(jun)(jun)的数(shu)(shu)量(liang)(liang)(liang)(liang)显著(zhu)高(gao)于(yu)对照(zhao)组(zu)(P<0.05),发(fa)(fa)(fa)酵(jiao)(jiao)(jiao)第30天(tian),乳(ru)(ru)酸(suan)(suan)(suan)菌(jun)(jun)、好氧细(xi)菌(jun)(jun)、酵(jiao)(jiao)(jiao)母菌(jun)(jun)、霉菌(jun)(jun)及(ji)(ji)大肠杆(gan)菌(jun)(jun)的数(shu)(shu)量(liang)(liang)(liang)(liang)有所减少(shao),大肠杆(gan)菌(jun)(jun)减少(shao)更明显;各添(tian)加(jia)(jia)组(zu)与(yu)对照(zhao)组(zu)相比,氨态(tai)氮及(ji)(ji)丁酸(suan)(suan)(suan)含量(liang)(liang)(liang)(liang)显著(zhu)降低(P<0.05),乳(ru)(ru)酸(suan)(suan)(suan)含量(liang)(liang)(liang)(liang)明显提(ti)高(gao)(P<0.05)。通(tong)过Flieg青(qing)贮(zhu)(zhu)饲料(liao)评分方(fang)案得出直接青(qing)贮(zhu)(zhu)饲料(liao)的发(fa)(fa)(fa)酵(jiao)(jiao)(jiao)品质较差(cha),等级(ji)为劣,而添(tian)加(jia)(jia)AC及(ji)(ji)SL+AC处(chu)理的青(qing)贮(zhu)(zhu)饲料(liao)发(fa)(fa)(fa)酵(jiao)(jiao)(jiao)品质Flieg等级(ji)为优。
添加物对水稻青贮发酵品质及有氧稳定性的影响
2012, 6(4): 658-662.
[摘要](1099) [PDF 733KB](959)
摘要:
为(wei)提高水稻(Oryza sativa)青(qing)(qing)贮(zhu)发(fa)酵(jiao)品质与有氧稳(wen)定(ding)性,本试(shi)验对(dui)(dui)培杂泰(tai)丰添加(jia)乳酸(suan)菌(青(qing)(qing)贮(zhu)宝和(he)LD8)和(he)富糖(tang)(tang)(tang)物(wu)质(蔗糖(tang)(tang)(tang)和(he)菠(bo)萝(luo)皮(pi))进(jin)行(xing)了研(yan)究。结果(guo)表明,所(suo)有添加(jia)物(wu)处理的pH值(zhi)都(dou)较低,除蔗糖(tang)(tang)(tang)外均显著低于(yu)对(dui)(dui)照(zhao)(P0.05),添加(jia)菠(bo)萝(luo)皮(pi)、青(qing)(qing)贮(zhu)宝和(he)LD8的青(qing)(qing)贮(zhu)料之间pH值(zhi)没有显著差异(P0.05);所(suo)有添加(jia)物(wu)处理的丁(ding)酸(suan)含量显著低于(yu)对(dui)(dui)照(zhao)(P0.05),特别是菠(bo)萝(luo)皮(pi)、青(qing)(qing)贮(zhu)宝和(he)LD8改(gai)善(shan)水稻的发(fa)酵(jiao)品质效果(guo)显著。青(qing)(qing)贮(zhu)开封后,添加(jia)菠(bo)萝(luo)皮(pi)和(he)LD8的青(qing)(qing)贮(zhu)料有氧稳(wen)定(ding)性较好。综合考虑, LD8和(he)菠(bo)萝(luo)皮(pi)改(gai)善(shan)水稻青(qing)(qing)贮(zhu)品质的效果(guo)最(zui)佳。
基层园地
草坪草外源功能基因转化研究进展
张婷婷, 陈静波
2012, 6(4): 663-668.
[摘要](1402) [PDF 456KB](847)
摘要:
草坪(ping)草的(de)(de)转(zhuan)(zhuan)基(ji)(ji)(ji)因(yin)技术已经有了很(hen)大的(de)(de)发(fa)展(zhan),目前已经在多(duo)种草坪(ping)草上转(zhuan)(zhuan)入了抗(kang)除(chu)草剂、抗(kang)病虫、抗(kang)旱抗(kang)盐、抗(kang)寒抗(kang)热和(he)延(yan)长绿期以及抗(kang)重(zhong)(zhong)金(jin)属等外(wai)源的(de)(de)功(gong)能基(ji)(ji)(ji)因(yin),获得了抗(kang)逆(ni)性(xing)提高(gao)(gao)的(de)(de)转(zhuan)(zhuan)基(ji)(ji)(ji)因(yin)植株。综合分析认为,在抗(kang)逆(ni)机理研究的(de)(de)基(ji)(ji)(ji)础上选择更关键的(de)(de)抗(kang)逆(ni)基(ji)(ji)(ji)因(yin)进行遗传(chuan)转(zhuan)(zhuan)化(hua)(hua)、转(zhuan)(zhuan)化(hua)(hua)草坪(ping)草矮化(hua)(hua)和(he)养分高(gao)(gao)效吸收的(de)(de)基(ji)(ji)(ji)因(yin)、转(zhuan)(zhuan)基(ji)(ji)(ji)因(yin)技术与传(chuan)统育种方法相结合以及转(zhuan)(zhuan)基(ji)(ji)(ji)因(yin)草坪(ping)草的(de)(de)安全性(xing)评(ping)价是将来需(xu)要重(zhong)(zhong)点展(zhan)开(kai)的(de)(de)研究工作。
欧宝体育