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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](1136) [PDF 489KB](809)
摘要:
利(li)用2000和(he)(he)(he)2007年(nian)LandsatTM影(ying)像资料,采(cai)用GIS技术研究了天(tian)山(shan)北坡荒漠绿洲区巴里坤哈(ha)萨克自治县(xian)(xian)(巴里县(xian)(xian))的景(jing)(jing)观(guan)(guan)格局变(bian)(bian)化特(te)征。结果表(biao)(biao)明(ming)(ming)(ming),从2000到(dao)2007年(nian),巴里坤县(xian)(xian)的水(shui)域和(he)(he)(he)草地(di)(di)(di)(di)面积(ji)分(fen)别减(jian)少623.42和(he)(he)(he)14 566.72 hm2,而(er)未利(li)用地(di)(di)(di)(di)、林(lin)地(di)(di)(di)(di)、耕(geng)地(di)(di)(di)(di)和(he)(he)(he)居民(min)及工(gong)矿(kuang)(kuang)用地(di)(di)(di)(di)分(fen)别增(zeng)(zeng)加9 397.30、3 090.15、259.57和(he)(he)(he)2 443.12 hm2,但主(zhu)要(yao)景(jing)(jing)观(guan)(guan)类型(xing)是草地(di)(di)(di)(di)和(he)(he)(he)未利(li)用土地(di)(di)(di)(di)的格局基本没有改变(bian)(bian)。8年(nian)内巴里坤县(xian)(xian)景(jing)(jing)观(guan)(guan)多样(yang)性(xing)指(zhi)(zhi)数(shu)从0.74增(zeng)(zeng)至0.80,均匀度指(zhi)(zhi)数(shu)从0.35增(zeng)(zeng)至0.40,景(jing)(jing)观(guan)(guan)构型(xing)指(zhi)(zhi)数(shu)从8.40增(zeng)(zeng)至9.40,说(shuo)明(ming)(ming)(ming)景(jing)(jing)观(guan)(guan)多样(yang)性(xing)略有增(zeng)(zeng)加,景(jing)(jing)观(guan)(guan)构型(xing)逐渐变(bian)(bian)大(da),草地(di)(di)(di)(di)破碎(sui)度加剧。版块(kuai)特(te)征变(bian)(bian)化表(biao)(biao)现为景(jing)(jing)观(guan)(guan)分(fen)维数(shu)增(zeng)(zeng)高,而(er)稳定(ding)性(xing)指(zhi)(zhi)数(shu)减(jian)小(xiao),各个景(jing)(jing)观(guan)(guan)类型(xing)的相对稳定(ding)性(xing)为: 居民(min)及工(gong)矿(kuang)(kuang)用地(di)(di)(di)(di)>水(shui)域>耕(geng)地(di)(di)(di)(di)>林(lin)地(di)(di)(di)(di)>草地(di)(di)(di)(di)>未利(li)用地(di)(di)(di)(di),说(shuo)明(ming)(ming)(ming)草地(di)(di)(di)(di)和(he)(he)(he)未利(li)用土地(di)(di)(di)(di)是目前主(zhu)要(yao)开(kai)发利(li)用的景(jing)(jing)观(guan)(guan)类型(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](1885) [PDF 413KB](835)
摘要:
调(diao)查分析了(le)青藏高(gao)原(yuan)(yuan)(yuan)东部高(gao)寒(han)草(cao)(cao)(cao)(cao)甸(dian)(dian)(dian)(dian)、高(gao)寒(han)灌(guan)丛(cong)草(cao)(cao)(cao)(cao)甸(dian)(dian)(dian)(dian)、亚高(gao)寒(han)草(cao)(cao)(cao)(cao)甸(dian)(dian)(dian)(dian)、沼(zhao)(zhao)(zhao)泽(ze)化(hua)(hua)草(cao)(cao)(cao)(cao)甸(dian)(dian)(dian)(dian)、荒(huang)(huang)漠化(hua)(hua)草(cao)(cao)(cao)(cao)原(yuan)(yuan)(yuan)、林(lin)间(jian)(jian)草(cao)(cao)(cao)(cao)地(di)(di)(di)、盐(yan)渍(zi)化(hua)(hua)沼(zhao)(zhao)(zhao)泽(ze)土(tu)(tu)(tu)(tu)(tu)壤(rang)碳(tan)(tan)氮(dan)磷(lin)含(han)(han)量(liang)(liang)(liang)(liang)垂直分布特征。结果表明,7种(zhong)草(cao)(cao)(cao)(cao)地(di)(di)(di)类型(xing)(xing)中,土(tu)(tu)(tu)(tu)(tu)壤(rang)有机碳(tan)(tan)含(han)(han)量(liang)(liang)(liang)(liang)大体随(sui)着土(tu)(tu)(tu)(tu)(tu)层的(de)深入而降(jiang)低,0~15 cm土(tu)(tu)(tu)(tu)(tu)层土(tu)(tu)(tu)(tu)(tu)壤(rang)有机碳(tan)(tan)的(de)累积量(liang)(liang)(liang)(liang)从(cong)高(gao)到(dao)低依(yi)次为林(lin)间(jian)(jian)草(cao)(cao)(cao)(cao)地(di)(di)(di)高(gao)寒(han)灌(guan)丛(cong)草(cao)(cao)(cao)(cao)甸(dian)(dian)(dian)(dian)高(gao)寒(han)草(cao)(cao)(cao)(cao)甸(dian)(dian)(dian)(dian)沼(zhao)(zhao)(zhao)泽(ze)化(hua)(hua)草(cao)(cao)(cao)(cao)甸(dian)(dian)(dian)(dian)盐(yan)渍(zi)化(hua)(hua)沼(zhao)(zhao)(zhao)泽(ze)亚高(gao)寒(han)草(cao)(cao)(cao)(cao)甸(dian)(dian)(dian)(dian)荒(huang)(huang)漠化(hua)(hua)草(cao)(cao)(cao)(cao)甸(dian)(dian)(dian)(dian)(P0.05);随(sui)土(tu)(tu)(tu)(tu)(tu)层深度变化(hua)(hua)土(tu)(tu)(tu)(tu)(tu)壤(rang)全(quan)氮(dan)含(han)(han)量(liang)(liang)(liang)(liang)与有机碳(tan)(tan)相似,0~15 cm全(quan)氮(dan)累积量(liang)(liang)(liang)(liang)从(cong)高(gao)到(dao)低依(yi)次为沼(zhao)(zhao)(zhao)泽(ze)化(hua)(hua)草(cao)(cao)(cao)(cao)甸(dian)(dian)(dian)(dian)林(lin)间(jian)(jian)草(cao)(cao)(cao)(cao)地(di)(di)(di)高(gao)寒(han)灌(guan)丛(cong)草(cao)(cao)(cao)(cao)甸(dian)(dian)(dian)(dian)高(gao)寒(han)草(cao)(cao)(cao)(cao)甸(dian)(dian)(dian)(dian)盐(yan)渍(zi)化(hua)(hua)沼(zhao)(zhao)(zhao)泽(ze)荒(huang)(huang)漠化(hua)(hua)草(cao)(cao)(cao)(cao)原(yuan)(yuan)(yuan)亚高(gao)寒(han)草(cao)(cao)(cao)(cao)甸(dian)(dian)(dian)(dian)(P0.05);荒(huang)(huang)漠化(hua)(hua)草(cao)(cao)(cao)(cao)原(yuan)(yuan)(yuan)、林(lin)间(jian)(jian)草(cao)(cao)(cao)(cao)地(di)(di)(di)和(he)土(tu)(tu)(tu)(tu)(tu)壤(rang)全(quan)磷(lin)含(han)(han)量(liang)(liang)(liang)(liang)随(sui)土(tu)(tu)(tu)(tu)(tu)层深度无明显规律性,0~15 cm土(tu)(tu)(tu)(tu)(tu)层全(quan)磷(lin)累积量(liang)(liang)(liang)(liang)由高(gao)到(dao)低依(yi)次为高(gao)寒(han)灌(guan)丛(cong)草(cao)(cao)(cao)(cao)甸(dian)(dian)(dian)(dian)沼(zhao)(zhao)(zhao)泽(ze)化(hua)(hua)草(cao)(cao)(cao)(cao)甸(dian)(dian)(dian)(dian)高(gao)寒(han)草(cao)(cao)(cao)(cao)甸(dian)(dian)(dian)(dian)盐(yan)渍(zi)化(hua)(hua)沼(zhao)(zhao)(zhao)泽(ze)亚高(gao)寒(han)草(cao)(cao)(cao)(cao)甸(dian)(dian)(dian)(dian)荒(huang)(huang)漠化(hua)(hua)草(cao)(cao)(cao)(cao)原(yuan)(yuan)(yuan)林(lin)间(jian)(jian)草(cao)(cao)(cao)(cao)地(di)(di)(di)(P0.05);随(sui)土(tu)(tu)(tu)(tu)(tu)层深度的(de)增加不同草(cao)(cao)(cao)(cao)地(di)(di)(di)类型(xing)(xing)养分含(han)(han)量(liang)(liang)(liang)(liang)顺序不同。除沼(zhao)(zhao)(zhao)泽(ze)化(hua)(hua)草(cao)(cao)(cao)(cao)甸(dian)(dian)(dian)(dian),不同草(cao)(cao)(cao)(cao)地(di)(di)(di)类型(xing)(xing)下土(tu)(tu)(tu)(tu)(tu)壤(rang)有机碳(tan)(tan)与全(quan)氮(dan)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](1367) [PDF 461KB](819)
摘要:
以塑料薄膜为(wei)(wei)阻隔材料,以污水处理厂(chang)污泥为(wei)(wei)主要(yao)基(ji)质(zhi)(zhi),煤渣(zha)、蘑(mo)菇渣(zha)和(he)沙等为(wei)(wei)配材,采用(yong)(yong)单形(xing)格子配方(fang)(fang)试验设计和(he)灰色(se)关联系数法,对(dui)11种不(bu)同(tong)配方(fang)(fang)基(ji)质(zhi)(zhi)的营养(yang)成分、重(zhong)金属(shu)(shu)含(han)(han)量、无土草(cao)皮(pi)坪用(yong)(yong)性状(zhuang)及综(zong)合品质(zhi)(zhi)进行了评定,建立了草(cao)皮(pi)综(zong)合品质(zhi)(zhi)与各配方(fang)(fang)成分间(jian)显著(zhu)相关的回归(gui)模型。结果(guo)表明,除(chu)叶绿素含(han)(han)量外(wai),其他7种坪用(yong)(yong)性状(zhuang)差异显著(zhu)。通过模拟寻优,得(de)到(dao)基(ji)质(zhi)(zhi)优化配方(fang)(fang)方(fang)(fang)案为(wei)(wei): 污泥含(han)(han)量51.41%~51.83%,煤渣(zha)含(han)(han)量18.32%~18.86%,蘑(mo)菇渣(zha)含(han)(han)量18.19%~18.81%,沙含(han)(han)量10.87%~11.72%。草(cao)坪草(cao)可(ke)富(fu)集较多的重(zhong)金属(shu)(shu)元(yuan)素,收(shou)获草(cao)皮(pi)后的基(ji)质(zhi)(zhi)中重(zhong)金属(shu)(shu)含(han)(han)量降(jiang)低且符(fu)合农用(yong)(yong)基(ji)质(zhi)(zhi)标(biao)准。
13种观赏草引种的生物安全性初探
2012, 6(4): 521-527.
[摘要](1154) [PDF 450KB](620)
摘要:
为(wei)了(le)防止(zhi)观赏草(cao)的(de)(de)(de)盲目推(tui)(tui)广(guang)带(dai)来生(sheng)物灾害,该研究(jiu)针对(dui)引入的(de)(de)(de)13个观赏草(cao)品(pin)(pin)种(zhong)(zhong)(zhong)分别从种(zhong)(zhong)(zhong)子(zi)、不定根、检疫(yi)性(xing)(xing)病虫(chong)害3个方面分析了(le)是否存在(zai)(zai)生(sheng)物入侵(qin)的(de)(de)(de)风险(xian),并就观赏草(cao)生(sheng)态适应性(xing)(xing)和在(zai)(zai)景(jing)观应用中的(de)(de)(de)安全(quan)性(xing)(xing)进行了(le)分析。结(jie)果表明,试验期间(jian)种(zhong)(zhong)(zhong)子(zi)无(wu)自播现(xian)象;距离原始植株0.1~1.0 m半径范(fan)围内无(wu)蔓发性(xing)(xing)根发苗现(xian)象;未发现(xian)检疫(yi)性(xing)(xing)病虫(chong)害;水(shui)葱(Scirpus validus)和花叶水(shui)葱(S.validus Mosaic)与高抗逆性(xing)(xing)品(pin)(pin)种(zhong)(zhong)(zhong)的(de)(de)(de)关联度最(zui)高,为(wei)0.763 9,蒲苇(wei)(Cortaderia selloana)和矮蒲苇(wei)(C.selloana Pumila)稍(shao)次之,关联度为(wei)0.748 0;13种(zhong)(zhong)(zhong)观赏草(cao)在(zai)(zai)园林景(jing)观中造成火灾危害的(de)(de)(de)可(ke)能性(xing)(xing)极(ji)低(di)。以(yi)上结(jie)果证明,所(suo)引品(pin)(pin)种(zhong)(zhong)(zhong)在(zai)(zai)宁(ning)(ning)波(bo)地区种(zhong)(zhong)(zhong)植存在(zai)(zai)生(sheng)物入侵(qin)的(de)(de)(de)可(ke)能性(xing)(xing)极(ji)低(di),可(ke)以(yi)在(zai)(zai)宁(ning)(ning)波(bo)及周边(bian)地区推(tui)(tui)广(guang)应用。
低碳农业研究进展
2012, 6(4): 528-533.
[摘要](1133) [PDF 370KB](832)
摘要:
低(di)碳(tan)(tan)(tan)(tan)(tan)(tan)农(nong)(nong)(nong)业(ye)(ye)是低(di)碳(tan)(tan)(tan)(tan)(tan)(tan)经济在(zai)农(nong)(nong)(nong)业(ye)(ye)发(fa)展(zhan)(zhan)中(zhong)的(de)(de)实现形式(shi),发(fa)展(zhan)(zhan)低(di)碳(tan)(tan)(tan)(tan)(tan)(tan)农(nong)(nong)(nong)业(ye)(ye)除了秉承低(di)碳(tan)(tan)(tan)(tan)(tan)(tan)经济的(de)(de)内涵之外(wai),关键在(zai)于提(ti)高农(nong)(nong)(nong)业(ye)(ye)生态系(xi)统对气候变化的(de)(de)适应(ying)性并降低(di)农(nong)(nong)(nong)业(ye)(ye)发(fa)展(zhan)(zhan)对生态系(xi)统碳(tan)(tan)(tan)(tan)(tan)(tan)循环(huan)的(de)(de)影(ying)响,维持生物圈的(de)(de)碳(tan)(tan)(tan)(tan)(tan)(tan)平(ping)衡。本研(yan)究在(zai)阅(yue)读大量文(wen)献(xian)的(de)(de)基(ji)础上,对低(di)碳(tan)(tan)(tan)(tan)(tan)(tan)农(nong)(nong)(nong)业(ye)(ye)的(de)(de)概念、低(di)碳(tan)(tan)(tan)(tan)(tan)(tan)农(nong)(nong)(nong)业(ye)(ye)的(de)(de)特(te)点、低(di)碳(tan)(tan)(tan)(tan)(tan)(tan)农(nong)(nong)(nong)业(ye)(ye)的(de)(de)发(fa)展(zhan)(zhan)现状(zhuang)、草地生态系(xi)统中(zhong)的(de)(de)碳(tan)(tan)(tan)(tan)(tan)(tan)循环(huan)及(ji)(ji)低(di)碳(tan)(tan)(tan)(tan)(tan)(tan)农(nong)(nong)(nong)业(ye)(ye)发(fa)展(zhan)(zhan)存在(zai)的(de)(de)问题及(ji)(ji)对策进行(xing)了综述,以期为我国低(di)碳(tan)(tan)(tan)(tan)(tan)(tan)农(nong)(nong)(nong)业(ye)(ye)及(ji)(ji)草业(ye)(ye)的(de)(de)发(fa)展(zhan)(zhan)提(ti)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](1073) [PDF 575KB](1173)
摘要:
随(sui)着(zhe)我国工(gong)业化(hua)进(jin)(jin)程不(bu)断加(jia)快,作为(wei)工(gong)业化(hua)基(ji)(ji)本生产资料的(de)(de)重(zhong)(zhong)(zhong)(zhong)(zhong)金(jin)属不(bu)断被释放到生物(wu)圈(quan)中(zhong),并通过食物(wu)链传递给动(dong)物(wu)或人,给人类(lei)(lei)健康带来严重(zhong)(zhong)(zhong)(zhong)(zhong)危害(hai)。草(cao)(cao)类(lei)(lei)分布广泛,有一(yi)(yi)定的(de)(de)抵(di)抗能(neng)力,一(yi)(yi)些草(cao)(cao)类(lei)(lei)甚至还具有重(zhong)(zhong)(zhong)(zhong)(zhong)金(jin)属超富(fu)集能(neng)力,在生物(wu)修复中(zhong)发挥(hui)重(zhong)(zhong)(zhong)(zhong)(zhong)要作用。本文就重(zhong)(zhong)(zhong)(zhong)(zhong)金(jin)属胁迫(po)(po)对(dui)草(cao)(cao)类(lei)(lei)种子萌发、根(gen)系(xi)(xi)活力和(he)(he)生物(wu)量方(fang)面的(de)(de)影响以及(ji)草(cao)(cao)类(lei)(lei)的(de)(de)抗性机制(脯氨酸(suan)、抗氧化(hua)酶(mei)系(xi)(xi)统、谷胱甘肽、隔(ge)离、菌(jun)根(gen)和(he)(he)水(shui)杨酸(suan))等研(yan)究现状进(jin)(jin)行论述(shu),并阐明草(cao)(cao)类(lei)(lei)对(dui)重(zhong)(zhong)(zhong)(zhong)(zhong)金(jin)属镉、锌、铜(tong)、铬(ge)、铅(qian)和(he)(he)汞的(de)(de)富(fu)集效应及(ji)其耐(nai)性机制,以期为(wei)今后草(cao)(cao)类(lei)(lei)耐(nai)重(zhong)(zhong)(zhong)(zhong)(zhong)金(jin)属胁迫(po)(po)品种的(de)(de)选育和(he)(he)耐(nai)重(zhong)(zhong)(zhong)(zhong)(zhong)金(jin)属胁迫(po)(po)分子机制的(de)(de)研(yan)究,提(ti)供现实依据和(he)(he)理论基(ji)(ji)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](1042) [PDF 607KB](1448)
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](1086) [PDF 622KB](622)
摘要:
摘要: 根据表(biao)达(da)载(zai)体(ti)PBI 121特性及(ji)酶(mei)切(qie)位点设计合适的(de)引(yin)物,由(you)表(biao)达(da)引(yin)物通(tong)过PCR技术(shu)从(cong)含有白颖(ying)苔草(cao)(Carex rigescens)CrHsf全长cDNA的(de)克(ke)隆(long)载(zai)体(ti)的(de)大肠杆菌上(shang)扩增(zeng)出带有特定酶(mei)切(qie)位点的(de)CrHsf完整开放阅(yue)读框。再对载(zai)体(ti)和目的(de)片(pian)段进行酶(mei)切(qie)处理(li),处理(li)后将正确(que)的(de)目的(de)基因片(pian)段亚克(ke)隆(long)至PBI 121植物表(biao)达(da)载(zai)体(ti)。通(tong)过PCR及(ji)酶(mei)切(qie)鉴定,结果证明,目的(de)基因片(pian)段已被正确(que)克(ke)隆(long)到表(biao)达(da)载(zai)体(ti)上(shang),载(zai)体(ti)构(gou)建成功(gong)。
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](1167) [PDF 854KB](788)
摘要:
以多浆旱生(sheng)植物霸(ba)王(Zygophyllum xanthoxylum)幼苗根(gen)系为(wei)材(cai)料,采用RTPCR方法获得(de)了其质膜Na+/H+逆向转(zhuan)运蛋白基因(yin)ZxSOS1的(de)片(pian)段,以中(zhong)间载(zai)体pHANNIBAL和植物表达载(zai)体PART27为(wei)基础(chu),采用酶切连接(jie)的(de)方法构建了CaMV 35S启动(dong)(dong)子驱动(dong)(dong)的(de)含ZxSOS1基因(yin)片(pian)段反向重(zhong)复序列(lie)的(de)RNAi植物表达载(zai)体PARS,为(wei)利用RNAi技术(shu)深入研究(jiu)ZxSOS1在(zai)霸(ba)王体内(nei)Na+转(zhuan)运中(zhong)的(de)功能及其在(zai)霸(ba)王适应干旱生(sheng)境中(zhong)的(de)作用机制奠定基础(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](1376) [PDF 852KB](974)
摘要:
采用卡宝品红(hong)染(ran)(ran)色(se)制片法(fa),对高(gao)羊(yang)茅(Festuca arundinacea)雄(xiong)性不(bu)育植株花(hua)(hua)粉(fen)母细胞减(jian)(jian)数(shu)分(fen)(fen)裂(lie)(lie)(lie)(lie)过程及异(yi)常(chang)行为(wei)进(jin)行观(guan)察,结果发现,高(gao)羊(yang)茅减(jian)(jian)数(shu)分(fen)(fen)裂(lie)(lie)(lie)(lie)进(jin)程与小(xiao)花(hua)(hua)大(da)(da)小(xiao)、花(hua)(hua)药长度、色(se)泽有较为(wei)密切的(de)关系。减(jian)(jian)数(shu)分(fen)(fen)裂(lie)(lie)(lie)(lie)周期具有不(bu)同(tong)(tong)(tong)步(bu)性,同(tong)(tong)(tong)一(yi)制片中可观(guan)察到2~4个不(bu)同(tong)(tong)(tong)时(shi)期的(de)分(fen)(fen)裂(lie)(lie)(lie)(lie)相,这种(zhong)现象是高(gao)羊(yang)茅在进(jin)化(hua)过程中环境适(shi)应的(de)一(yi)种(zhong)表现,有利于增强(qiang)种(zhong)群(qun)繁殖(zhi)稳定(ding)性。本(ben)研究还发现,减(jian)(jian)数(shu)分(fen)(fen)裂(lie)(lie)(lie)(lie)过程中存在大(da)(da)量单价体(ti)、染(ran)(ran)色(se)体(ti)桥(qiao)、落后染(ran)(ran)色(se)体(ti)、不(bu)均等分(fen)(fen)离、微核、三分(fen)(fen)体(ti)等异(yi)常(chang)现象,初步(bu)分(fen)(fen)析确定(ding)这些小(xiao)孢子异(yi)常(chang)分(fen)(fen)裂(lie)(lie)(lie)(lie)是导致高(gao)羊(yang)茅花(hua)(hua)粉(fen)败育的(de)重要原因(yin)之一(yi)。
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](1061) [PDF 552KB](643)
摘要:
为(wei)进(jin)一(yi)步研究(jiu)国内仅分布于新疆的高(gao)葶(ting)(ting)韭(Allium obliquum)花(hua)(hua)(hua)(hua)粉发育、传(chuan)粉生物学以(yi)及为(wei)高(gao)葶(ting)(ting)韭人工有性繁殖提供理论依据和(he)试验(yan)方法,定株观察了(le)花(hua)(hua)(hua)(hua)期高(gao)葶(ting)(ting)韭雄(xiong)蕊(rui)的开花(hua)(hua)(hua)(hua)进(jin)程以(yi)及形态变(bian)化特(te)征,并采(cai)用6种方法测定了(le)高(gao)葶(ting)(ting)韭花(hua)(hua)(hua)(hua)粉育性。结果显(xian)示,高(gao)葶(ting)(ting)韭单(dan)花(hua)(hua)(hua)(hua)开放经过5个形态变(bian)化至花(hua)(hua)(hua)(hua)药(yao)脱落和(he)花(hua)(hua)(hua)(hua)被(bei)片完全闭合。高(gao)葶(ting)(ting)韭内轮花(hua)(hua)(hua)(hua)丝先(xian)于外轮花(hua)(hua)(hua)(hua)丝伸(shen)(shen)长,内轮花(hua)(hua)(hua)(hua)药(yao)先(xian)伸(shen)(shen)出花(hua)(hua)(hua)(hua)被(bei)片,随后(hou)外轮花(hua)(hua)(hua)(hua)药(yao)陆(lu)续伸(shen)(shen)出花(hua)(hua)(hua)(hua)被(bei)片。雄(xiong)蕊(rui)开放至6枚花(hua)(hua)(hua)(hua)药(yao)全部(bu)脱落4~5 d。单(dan)枚花(hua)(hua)(hua)(hua)药(yao)从(cong)散粉到(dao)完全散粉一(yi)般需(xu)要1.5~2.0 h。散粉后(hou)高(gao)葶(ting)(ting)韭花(hua)(hua)(hua)(hua)粉活(huo)力(萌发率(lv)) 0~10 h内超(chao)过50%。0.5%氯化三苯(ben)基四氮(dan)(dan)唑、四甲基偶氮(dan)(dan)唑、联苯(ben)胺和(he)离体萌发法可以(yi)用来检验(yan)高(gao)葶(ting)(ting)韭花(hua)(hua)(hua)(hua)粉活(huo)力和(he)花(hua)(hua)(hua)(hua)粉萌发率(lv),而醋酸洋红和(he)碘(dian)碘(dian)化钾不(bu)适合高(gao)葶(ting)(ting)韭花(hua)(hua)(hua)(hua)粉育性的测定。高(gao)葶(ting)(ting)韭具有雌雄(xiong)异熟、雄(xiong)蕊(rui)先(xian)熟于雌蕊(rui)的花(hua)(hua)(hua)(hua)部(bu)特(te)征,花(hua)(hua)(hua)(hua)粉可育且寿命(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](1289) [PDF 396KB](703)
摘要:
研究了黄(huang)(huang)(huang)(huang)花(hua)棘豆(dou)(Oxytropis ochrocephala)的(de)(de)水(shui)(shui)浸(jin)(jin)(jin)提(ti)液(ye)对(dui)(dui)垂穗披碱草(cao)(Elymus nutans)、醉马草(cao)(Achnatherum inebrians)、多叶老芒麦(Elymus sibiricus cv.Duoye)种(zhong)(zhong)(zhong)子(zi)萌发和幼(you)苗(miao)生长的(de)(de)影(ying)响(xiang)(xiang)(xiang)。结果表(biao)明,不同(tong)浓(nong)(nong)度黄(huang)(huang)(huang)(huang)花(hua)棘豆(dou)水(shui)(shui)浸(jin)(jin)(jin)提(ti)液(ye)对(dui)(dui)种(zhong)(zhong)(zhong)子(zi)的(de)(de)萌发影(ying)响(xiang)(xiang)(xiang)不同(tong),除(chu)4%和20%的(de)(de)黄(huang)(huang)(huang)(huang)花(hua)棘豆(dou)水(shui)(shui)浸(jin)(jin)(jin)提(ti)液(ye)对(dui)(dui)醉马草(cao)种(zhong)(zhong)(zhong)子(zi)萌发无显(xian)著(zhu)影(ying)响(xiang)(xiang)(xiang)外(wai),其他各浓(nong)(nong)度的(de)(de)提(ti)取(qu)液(ye)对(dui)(dui)3种(zhong)(zhong)(zhong)植(zhi)物(wu)的(de)(de)发芽率均(jun)有显(xian)著(zhu)影(ying)响(xiang)(xiang)(xiang)。4%黄(huang)(huang)(huang)(huang)花(hua)棘豆(dou)的(de)(de)水(shui)(shui)浸(jin)(jin)(jin)提(ti)液(ye)对(dui)(dui)醉马草(cao)根长无显(xian)著(zhu)影(ying)响(xiang)(xiang)(xiang),其他各浓(nong)(nong)度的(de)(de)提(ti)取(qu)液(ye)都抑(yi)制了3种(zhong)(zhong)(zhong)植(zhi)物(wu)幼(you)苗(miao)的(de)(de)生长。4%、20%和100%的(de)(de)黄(huang)(huang)(huang)(huang)花(hua)棘豆(dou)水(shui)(shui)浸(jin)(jin)(jin)提(ti)液(ye)对(dui)(dui)3种(zhong)(zhong)(zhong)植(zhi)物(wu)影(ying)响(xiang)(xiang)(xiang)的(de)(de)综合效应均(jun)表(biao)现为抑(yi)制作用。
氮与pH互作对菊苣4项生理指标的影响
2012, 6(4): 571-576.
[摘要](1192) [PDF 493KB](642)
摘要:
采用65.305,130.610和(he)(he)(he)(he)261.220 mgL-1 三个质(zhi)量(liang)浓度(du)氮(dan)(dan)的(de)改良Hoagland营养(yang)液及5.5、7.0和(he)(he)(he)(he)8.5三个pH水(shui)平完全随机等(deng)重复沙培试验,探讨了(le)氮(dan)(dan)与pH互(hu)作(zuo)对菊(ju)苣(ju)(ju)(Cichorium intybus)叶(ye)(ye)(ye)片(pian)叶(ye)(ye)(ye)绿素和(he)(he)(he)(he)丙二醛(quan)含(han)量(liang)(MDA)及过氧化(hua)物酶(POD)和(he)(he)(he)(he)超氧化(hua)物歧化(hua)酶(SOD)活(huo)性(xing)等(deng)生理(li)指标的(de)影响。结果表明,1)在不(bu)同氮(dan)(dan)浓度(du)处理(li)时,菊(ju)苣(ju)(ju)叶(ye)(ye)(ye)片(pian)叶(ye)(ye)(ye)绿素和(he)(he)(he)(he)MDA含(han)量(liang)无(wu)显(xian)著(zhu)(zhu)变(bian)(bian)(bian)化(hua),而(er)POD和(he)(he)(he)(he)SOD活(huo)性(xing)显(xian)著(zhu)(zhu)上(shang)升;2)在不(bu)同pH处理(li)时,菊(ju)苣(ju)(ju)叶(ye)(ye)(ye)片(pian)叶(ye)(ye)(ye)绿素含(han)量(liang)有显(xian)著(zhu)(zhu)变(bian)(bian)(bian)化(hua),MDA含(han)量(liang)无(wu)显(xian)著(zhu)(zhu)变(bian)(bian)(bian)化(hua),而(er)POD和(he)(he)(he)(he)SOD活(huo)性(xing)显(xian)著(zhu)(zhu)上(shang)升;3)氮(dan)(dan)与pH互(hu)作(zuo)对菊(ju)苣(ju)(ju)生长(zhang)有显(xian)著(zhu)(zhu)影响;菊(ju)苣(ju)(ju)叶(ye)(ye)(ye)片(pian)叶(ye)(ye)(ye)绿素含(han)量(liang)在高(gao)氮(dan)(dan)低(di)pH互(hu)作(zuo)下最(zui)高(gao),且(qie)随施氮(dan)(dan)量(liang)的(de)增(zeng)(zeng)加(jia)持续增(zeng)(zeng)加(jia);MDA含(han)量(liang)在高(gao)氮(dan)(dan)低(di)pH互(hu)作(zuo)下最(zui)低(di),且(qie)在氮(dan)(dan)或pH胁迫时变(bian)(bian)(bian)化(hua)甚微;POD和(he)(he)(he)(he)SOD活(huo)性(xing)在高(gao)氮(dan)(dan)高(gao)pH互(hu)作(zuo)下活(huo)性(xing)最(zui)低(di),且(qie)在受到氮(dan)(dan)或pH胁迫时变(bian)(bian)(bian)化(hua)显(xian)著(zhu)(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](1307) [PDF 703KB](752)
摘要:
在祁连山(shan)东段天(tian)祝县南泥(ni)沟(gou)河谷地的(de)(de)披(pi)碱(jian)(jian)草(cao)(cao)(cao)-嵩(song)草(cao)(cao)(cao)型(xing)草(cao)(cao)(cao)地设(she)置禁(jin)牧(mu)(Nongrazing grassland,NG)和放(fang)(fang)牧(mu)(Grazing grassland,G)两(liang)块样地,选取矮(ai)(ai)嵩(song)草(cao)(cao)(cao)(Kobresia humilis)、垂(chui)(chui)穗披(pi)碱(jian)(jian)草(cao)(cao)(cao)(Elymus nutans)、扁蓿豆(dou)(Melissitus rutenica)、黄(huang)花棘豆(dou)(Oxytropis ochrocephala)4种(zhong)优(you)势植物(wu),测定(ding)了4种(zhong)植物(wu)的(de)(de)光(guang)(guang)合-光(guang)(guang)响应曲线(PnPAR curves)和叶(ye)绿素(su)荧(ying)光(guang)(guang)特性。结果显(xian)示,4种(zhong)植物(wu)在放(fang)(fang)牧(mu)后(hou): 1)对强(qiang)(qiang)光(guang)(guang)的(de)(de)适应能力(li)(li)增强(qiang)(qiang)而(er)(er)(er)对弱光(guang)(guang)的(de)(de)利用能力(li)(li)降(jiang)低(di)(di)(di)。垂(chui)(chui)穗披(pi)碱(jian)(jian)草(cao)(cao)(cao)、矮(ai)(ai)嵩(song)草(cao)(cao)(cao)、扁蓿豆(dou)的(de)(de)最大净(jing)光(guang)(guang)合速率(lv)(Pmax)显(xian)著(zhu)降(jiang)低(di)(di)(di),即光(guang)(guang)合潜(qian)力(li)(li)降(jiang)低(di)(di)(di);而(er)(er)(er)黄(huang)花棘豆(dou)的(de)(de)Pmax却显(xian)著(zhu)升(sheng)高(gao),光(guang)(guang)合能力(li)(li)增强(qiang)(qiang)。2)叶(ye)绿素(su)初始荧(ying)光(guang)(guang)(F0)成像颜色加深,说明叶(ye)绿素(su)含(han)量(liang)有所降(jiang)低(di)(di)(di),尤以垂(chui)(chui)穗披(pi)碱(jian)(jian)草(cao)(cao)(cao)、矮(ai)(ai)嵩(song)草(cao)(cao)(cao)最为明显(xian)。3)PSⅡ最大量(liang)子产量(liang)(Fv/Fm)、光(guang)(guang)化(hua)学(xue)猝(cu)(cu)灭系(xi)数(shu)(qP)、电子传递速率(lv)(ETR)值显(xian)著(zhu)降(jiang)低(di)(di)(di),而(er)(er)(er)非(fei)光(guang)(guang)化(hua)学(xue)猝(cu)(cu)灭系(xi)数(shu)(NPQ)值升(sheng)高(gao)。综合各项指标来看(kan),放(fang)(fang)牧(mu)后(hou)黄(huang)花棘豆(dou)这种(zhong)毒草(cao)(cao)(cao)的(de)(de)光(guang)(guang)合能力(li)(li)提(ti)高(gao),而(er)(er)(er)其他3种(zhong)优(you)质牧(mu)草(cao)(cao)(cao)的(de)(de)光(guang)(guang)合能力(li)(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](1130) [PDF 444KB](890)
摘要:
通过田间(jian)试(shi)验,采用氮(dan)、磷(lin)(lin)(lin)(lin)、钾(jia)(jia)三因(yin)素二次(ci)D饱(bao)和最优设计研究(jiu)了氮(dan)、磷(lin)(lin)(lin)(lin)、钾(jia)(jia)肥(fei)(fei)及(ji)其(qi)配比施(shi)(shi)肥(fei)(fei)对(dui)(dui)桔(jie)梗(Platycodon grandiflorum)生长及(ji)次(ci)生代谢产(chan)(chan)物的影响(xiang)。试(shi)验结果表(biao)明,施(shi)(shi)肥(fei)(fei)能显(xian)著提高(gao)桔(jie)梗药(yao)材产(chan)(chan)量(liang)(liang),氮(dan)、磷(lin)(lin)(lin)(lin)、钾(jia)(jia)元(yuan)素对(dui)(dui)桔(jie)梗药(yao)材产(chan)(chan)量(liang)(liang)影响(xiang)依(yi)次(ci)为(wei)氮(dan)钾(jia)(jia)磷(lin)(lin)(lin)(lin)。氮(dan)、磷(lin)(lin)(lin)(lin)、钾(jia)(jia)元(yuan)素对(dui)(dui)桔(jie)梗总(zong)皂(zao)苷含(han)量(liang)(liang)影响(xiang)依(yi)次(ci)为(wei)氮(dan)钾(jia)(jia)磷(lin)(lin)(lin)(lin),对(dui)(dui)桔(jie)梗植株(zhu)多糖含(han)量(liang)(liang)影响(xiang)依(yi)次(ci)为(wei)磷(lin)(lin)(lin)(lin)氮(dan)钾(jia)(jia);氮(dan)、磷(lin)(lin)(lin)(lin)对(dui)(dui)黄酮积累表(biao)现出(chu)一定(ding)负效(xiao)应。依(yi)据桔(jie)梗药(yao)材产(chan)(chan)量(liang)(liang)及(ji)总(zong)皂(zao)苷含(han)量(liang)(liang)提出(chu)桔(jie)梗合理施(shi)(shi)肥(fei)(fei)方案为(wei)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](1128) [PDF 462KB](692)
摘要:
采用盆(pen)栽(zai)试验,研究了(le)(le)(le)施(shi)(shi)纯(chun)氮(dan) 0、0.15、0.30和(he)0.45 gkg-1对大(da)丽(li)花(hua)(Dahlia pinnata)品种深玫红形态(tai)指标及叶(ye)(ye)片(pian)生理特性(xing)的(de)影响(xiang),以确定大(da)丽(li)花(hua)最佳(jia)的(de)氮(dan)肥用量(liang)(liang)(liang)(liang)(liang)(liang)(liang)。结果(guo)表明(ming),与不(bu)施(shi)(shi)氮(dan)相比,在一定施(shi)(shi)氮(dan)范围内,随施(shi)(shi)氮(dan)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)的(de)提高,大(da)丽(li)花(hua)茎粗、叶(ye)(ye)面积(ji)、花(hua)径、花(hua)期及块根质(zhi)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)之增(zeng)(zeng)加(jia);叶(ye)(ye)片(pian)中叶(ye)(ye)绿素、可溶性(xing)蛋白和(he)脯氨酸(suan)含量(liang)(liang)(liang)(liang)(liang)(liang)(liang)显(xian)(xian)著增(zeng)(zeng)加(jia);超氧(yang)化(hua)(hua)物歧化(hua)(hua)酶(mei)(mei)、过氧(yang)化(hua)(hua)物酶(mei)(mei)和(he)过氧(yang)化(hua)(hua)氢酶(mei)(mei)的(de)活(huo)性(xing)也显(xian)(xian)著提高,丙二醛含量(liang)(liang)(liang)(liang)(liang)(liang)(liang)显(xian)(xian)著降低,增(zeng)(zeng)强了(le)(le)(le)质(zhi)膜稳定性(xing),抑(yi)制了(le)(le)(le)膜的(de)渗(shen)漏,加(jia)强了(le)(le)(le)细(xi)胞膜的(de)保护功能(neng);硝酸(suan)还(hai)原酶(mei)(mei)活(huo)性(xing)显(xian)(xian)著增(zeng)(zeng)加(jia),促(cu)(cu)进(jin)了(le)(le)(le)大(da)丽(li)花(hua)氮(dan)素代谢。当氮(dan)过量(liang)(liang)(liang)(liang)(liang)(liang)(liang)时,除叶(ye)(ye)面积(ji)和(he)脯氨酸(suan)含量(liang)(liang)(liang)(liang)(liang)(liang)(liang)外(wai),上(shang)述指标均有(you)不(bu)同程度的(de)下降。说明(ming)适度增(zeng)(zeng)加(jia)氮(dan)用量(liang)(liang)(liang)(liang)(liang)(liang)(liang)对大(da)丽(li)花(hua)生长发育有(you)促(cu)(cu)进(jin)作(zuo)(zuo)用,能(neng)够(gou)延缓(huan)衰(shuai)老,提高其(qi)观赏价值,施(shi)(shi)氮(dan)过量(liang)(liang)(liang)(liang)(liang)(liang)(liang)则会起到抑(yi)制作(zuo)(zuo)用。在本试验条件下,盆(pen)栽(zai)(每盆(pen)基质(zhi)12 kg)大(da)丽(li)花(hua)的(de)推荐施(shi)(shi)氮(dan)量(liang)(liang)(liang)(liang)(liang)(liang)(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](1174) [PDF 487KB](943)
摘要:
以地(di)毯草(cao)(Axonopus compressus)为(wei)(wei)对象(xiang),利用(yong)水培法进行耐盐(yan)鉴定,初步研究不同盐(yan)浓(nong)(nong)度(du)(du)(du)对地(di)毯草(cao)坪(ping)用(yong)品质(zhi)、叶色(se)和枯(ku)(ku)黄(huang)(huang)(huang)(huang)率(lv)(lv)(lv)的(de)(de)影(ying)响,并对地(di)毯草(cao)耐盐(yan)性进行了(le)评价。结果表明,不同的(de)(de)处理(li)之间(jian)存在(zai)(zai)(zai)显著或极显著性差异,在(zai)(zai)(zai)低(di)(di)(di)浓(nong)(nong)度(du)(du)(du)处理(li)下(xia)(0~120 mmolL-1),叶色(se)和坪(ping)用(yong)品质(zhi)得分6分以上;而在(zai)(zai)(zai)高浓(nong)(nong)度(du)(du)(du)处理(li)下(xia)(140~180 mmolL-1),景观(guan)价值低(di)(di)(di)于(yu)6分。叶片枯(ku)(ku)黄(huang)(huang)(huang)(huang)率(lv)(lv)(lv)与之正(zheng)好相反,在(zai)(zai)(zai)低(di)(di)(di)浓(nong)(nong)度(du)(du)(du)下(xia)(0~140 mmolL-1),枯(ku)(ku)黄(huang)(huang)(huang)(huang)率(lv)(lv)(lv)较低(di)(di)(di);而在(zai)(zai)(zai)高浓(nong)(nong)度(du)(du)(du)下(xia)(160~180 mmolL-1),枯(ku)(ku)黄(huang)(huang)(huang)(huang)率(lv)(lv)(lv)超过(guo)50%,从(cong)而导致(zhi)地(di)毯草(cao)草(cao)坪(ping)观(guan)赏价值过(guo)低(di)(di)(di)。通(tong)过(guo)建(jian)立回归(gui)方(fang)程,以枯(ku)(ku)黄(huang)(huang)(huang)(huang)率(lv)(lv)(lv)50%作为(wei)(wei)确定存活(huo)的(de)(de)临界(jie)值指标,求(qiu)得地(di)毯草(cao)具有盐(yan)半(ban)致(zhi)死临界(jie)浓(nong)(nong)度(du)(du)(du)为(wei)(wei)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](1195) [PDF 378KB](628)
摘要:
对5个紫花苜蓿(xu)(Medicago sativa)品(pin)种(zhong)(zhong)(zhong)各茬(cha)(cha)(cha)(cha)的(de)(de)(de)株(zhu)高(gao)、干(gan)草(cao)产量(liang)、叶茎比以及营养成(cheng)分进(jin)行分析(xi)。结果表(biao)(biao)明(ming),各苜蓿(xu)品(pin)种(zhong)(zhong)(zhong)株(zhu)高(gao)和(he)(he)(he)干(gan)草(cao)产量(liang)随着茬(cha)(cha)(cha)(cha)次的(de)(de)(de)增加而(er)(er)降低,但(dan)品(pin)种(zhong)(zhong)(zhong)间各茬(cha)(cha)(cha)(cha)次存在(zai)差异;生长季内3茬(cha)(cha)(cha)(cha)的(de)(de)(de)苜蓿(xu)株(zhu)高(gao)和(he)(he)(he)干(gan)草(cao)产量(liang)WL323和(he)(he)(he)三得(de)(de)利表(biao)(biao)现(xian)最好(hao)(hao)。各品(pin)种(zhong)(zhong)(zhong)中粗蛋白和(he)(he)(he)粗脂肪含(han)量(liang)第2、3茬(cha)(cha)(cha)(cha)高(gao)于(yu)第1茬(cha)(cha)(cha)(cha),尤其是(shi)(shi)第2茬(cha)(cha)(cha)(cha)明(ming)显高(gao)于(yu)第1茬(cha)(cha)(cha)(cha)、第3茬(cha)(cha)(cha)(cha),而(er)(er)粗纤维含(han)量(liang)则(ze)相反;而(er)(er)品(pin)种(zhong)(zhong)(zhong)间在(zai)主要营养物(wu)质含(han)量(liang)方面(mian)则(ze)是(shi)(shi)三得(de)(de)利和(he)(he)(he)WL323表(biao)(biao)现(xian)最好(hao)(hao)。综合(he)(he)几项指标(biao),三得(de)(de)利和(he)(he)(he)WL323在(zai)绿洲(zhou)区表(biao)(biao)现(xian)特征最好(hao)(hao),阿尔冈金表(biao)(biao)现(xian)不(bu)佳。从不(bu)同品(pin)种(zhong)(zhong)(zhong)各茬(cha)(cha)(cha)(cha)次生产经济性(xing)状综合(he)(he)来(lai)看,第2茬(cha)(cha)(cha)(cha)的(de)(de)(de)效应(ying)最好(hao)(hao),可见,第2茬(cha)(cha)(cha)(cha)苜蓿(xu)是(shi)(shi)获(huo)得(de)(de)理想(xiang)苜蓿(xu)干(gan)草(cao)的(de)(de)(de)重要时期(qi)。
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](1406) [PDF 374KB](800)
摘要:
以(yi)(yi)国(guo)外引(yin)进(jin)(jin)的10个(ge)紫(zi)(zi)花(hua)苜蓿(Medicago sativa)品(pin)(pin)(pin)种(zhong)(zhong)为试验材料(liao),通过对其(qi)产草量及营养品(pin)(pin)(pin)质进(jin)(jin)行测定,探讨(tao)引(yin)进(jin)(jin)紫(zi)(zi)花(hua)苜蓿品(pin)(pin)(pin)种(zhong)(zhong)在(zai)昆明(ming)地(di)区的生(sheng)产性(xing)(xing)能(neng)和持(chi)(chi)久性(xing)(xing),为我国(guo)南方地(di)区紫(zi)(zi)花(hua)苜蓿的引(yin)种(zhong)(zhong)栽培提(ti)供(gong)参考。结(jie)果表(biao)明(ming),1)生(sheng)长(zhang)第(di)2年(nian)、第(di)6年(nian),10个(ge)引(yin)进(jin)(jin)紫(zi)(zi)花(hua)苜蓿品(pin)(pin)(pin)种(zhong)(zhong)的产草量、株高、叶茎(jing)比、粗(cu)蛋(dan)白、粗(cu)脂肪、粗(cu)灰分含(han)量以(yi)(yi)GT13R、射(she)手2号(hao)显著高于其(qi)他(ta)品(pin)(pin)(pin)种(zhong)(zhong),而粗(cu)纤维(wei)(CF)含(han)量显著低于其(qi)他(ta)品(pin)(pin)(pin)种(zhong)(zhong)(P<0.05);2)随着生(sheng)长(zhang)年(nian)限(xian)由第(di)2年(nian)延长(zhang)至第(di)6年(nian),10个(ge)引(yin)进(jin)(jin)紫(zi)(zi)花(hua)苜蓿品(pin)(pin)(pin)种(zhong)(zhong)的生(sheng)产性(xing)(xing)能(neng)和营养品(pin)(pin)(pin)质均呈下降趋势,以(yi)(yi)品(pin)(pin)(pin)种(zhong)(zhong)爱(ai)林(lin)+2和超(chao)级13R下降最为显著;3)灰色(se)关联综合评价(jia)结(jie)果表(biao)明(ming),品(pin)(pin)(pin)种(zhong)(zhong)GT13R和射(she)手2号(hao)生(sheng)产性(xing)(xing)能(neng)和持(chi)(chi)久性(xing)(xing)最好,是最适宜在(zai)昆明(ming)地(di)区种(zhong)(zhong)植(zhi)的品(pin)(pin)(pin)种(zhong)(zhong);品(pin)(pin)(pin)种(zhong)(zhong)射(she)手、爱(ai)博、爱(ai)林(lin)+2和超(chao)级13R的生(sheng)产性(xing)(xing)能(neng)和持(chi)(chi)久性(xing)(xing)较差,不适宜在(zai)云南省北亚(ya)热带气候条件建植(zhi)多年(nian)生(sheng)栽培草地(di)。
四儿滩地区植物种群的生态位
2012, 6(4): 615-623.
[摘要](1222) [PDF 518KB](603)
摘要:
本研究运用Levins生(sheng)态(tai)位(wei)(wei)(wei)宽度(du)(du)(du)(du)指(zhi)数及(ji)Pianka生(sheng)态(tai)位(wei)(wei)(wei)重(zhong)叠指(zhi)数,对(dui)宁夏(xia)盐池(chi)四儿(er)滩湿(shi)(shi)(shi)地的(de)(de)(de)(de)植(zhi)(zhi)物生(sheng)态(tai)位(wei)(wei)(wei)宽度(du)(du)(du)(du)及(ji)生(sheng)态(tai)位(wei)(wei)(wei)重(zhong)叠度(du)(du)(du)(du)进(jin)行了研究,深入了解湿(shi)(shi)(shi)地植(zhi)(zhi)被的(de)(de)(de)(de)特征(zheng),为半干旱区天然湿(shi)(shi)(shi)地的(de)(de)(de)(de)植(zhi)(zhi)被保(bao)护和生(sheng)态(tai)恢(hui)复(fu)提供参考(kao)方法。结(jie)果(guo)表明,湿(shi)(shi)(shi)地周边不同样(yang)(yang)线(xian)的(de)(de)(de)(de)主要(yao)优势(shi)种各不相(xiang)(xiang)同,可见(jian)湿(shi)(shi)(shi)地生(sheng)态(tai)系统中(zhong)植(zhi)(zhi)物种群呈聚集分布(bu)的(de)(de)(de)(de)特点(dian)。四条样(yang)(yang)线(xian)中(zhong)西、北两条样(yang)(yang)线(xian)的(de)(de)(de)(de)植(zhi)(zhi)被生(sheng)长状况(kuang)较(jiao)好,而东、南样(yang)(yang)线(xian)的(de)(de)(de)(de)植(zhi)(zhi)被则相(xiang)(xiang)对(dui)较(jiao)差。刺(ci)沙(sha)蓬(Salsola pestifer)、阿尔泰狗娃(wa)花(Heteropappus altaicus)、沙(sha)鞭(bian)(Psammochloa villosa)、苦豆子(Sophora alopecuroides)是(shi)四儿(er)滩湿(shi)(shi)(shi)地的(de)(de)(de)(de)主要(yao)优势(shi)种,蒲(pu)公(gong)英(Herba taraxaci)、紫菀(Aster tataricus)、虎尾草(Lysimachia barystachys)、角蒿(Incarvillea sinensis)、香青兰(Dracocephalum moldavica)、沙(sha)葱(Allium mongolicum)、黑(hei)沙(sha)蒿(Artemisia ordosica)等是(shi)四儿(er)滩湿(shi)(shi)(shi)地的(de)(de)(de)(de)特化种。四儿(er)滩湿(shi)(shi)(shi)地的(de)(de)(de)(de)生(sheng)态(tai)位(wei)(wei)(wei)重(zhong)叠度(du)(du)(du)(du)统计(ji)结(jie)果(guo)显示,生(sheng)态(tai)位(wei)(wei)(wei)宽度(du)(du)(du)(du)大的(de)(de)(de)(de)物种与其他物种的(de)(de)(de)(de)重(zhong)叠度(du)(du)(du)(du)指(zhi)数不一(yi)定(ding)大,生(sheng)态(tai)位(wei)(wei)(wei)宽度(du)(du)(du)(du)和较(jiao)高(gao)的(de)(de)(de)(de)生(sheng)态(tai)位(wei)(wei)(wei)重(zhong)叠度(du)(du)(du)(du)之间并不存在直接(jie)的(de)(de)(de)(de)线(xian)性(xing)关系,这一(yi)现象从另(ling)外一(yi)个(ge)角度(du)(du)(du)(du)说明了湿(shi)(shi)(shi)地生(sheng)态(tai)系统资(zi)源环境存在高(gao)度(du)(du)(du)(du)的(de)(de)(de)(de)空间异(yi)质性(xing)。
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](1293) [PDF 388KB](692)
摘要:
以2008年(nian)青(qing)(qing)海(hai)(hai)云(yun)杉(Picea classifolia)林(lin)(lin)样(yang)(yang)地(di)(di)(di)调查资料为基础,用主(zhu)成分分析、聚类分析、森(sen)(sen)林(lin)(lin)健(jian)(jian)(jian)康(kang)(kang)(kang)综合评(ping)价(jia)模(mo)型的(de)方(fang)法,对东大河林(lin)(lin)区青(qing)(qing)海(hai)(hai)云(yun)杉林(lin)(lin)的(de)森(sen)(sen)林(lin)(lin)健(jian)(jian)(jian)康(kang)(kang)(kang)状(zhuang)况进行了综合评(ping)价(jia),结果表明,反映(ying)青(qing)(qing)海(hai)(hai)云(yun)杉林(lin)(lin)健(jian)(jian)(jian)康(kang)(kang)(kang)状(zhuang)况的(de)自(zi)然环境、群(qun)落特征(zheng)、恢复力(li)、生(sheng)(sheng)产(chan)力(li)和(he)生(sheng)(sheng)产(chan)潜力(li)5个(ge)(ge)方(fang)面19个(ge)(ge)指标,能够初(chu)步构建青(qing)(qing)海(hai)(hai)云(yun)杉林(lin)(lin)的(de)健(jian)(jian)(jian)康(kang)(kang)(kang)评(ping)价(jia)指标体系。影响青(qing)(qing)海(hai)(hai)云(yun)杉林(lin)(lin)健(jian)(jian)(jian)康(kang)(kang)(kang)状(zhuang)况的(de)主(zhu)要指标有群(qun)落类型、郁闭度、灌(guan)木(mu)层盖(gai)度、林(lin)(lin)分蓄(xu)积量(liang)、土壤吸湿水、土壤含(han)水率6个(ge)(ge)。将13个(ge)(ge)青(qing)(qing)海(hai)(hai)云(yun)杉林(lin)(lin)样(yang)(yang)地(di)(di)(di)划(hua)分为健(jian)(jian)(jian)康(kang)(kang)(kang)、亚健(jian)(jian)(jian)康(kang)(kang)(kang)、不(bu)健(jian)(jian)(jian)康(kang)(kang)(kang)3类,健(jian)(jian)(jian)康(kang)(kang)(kang)样(yang)(yang)地(di)(di)(di)包括7个(ge)(ge)苔(tai)藓(xian)-青(qing)(qing)海(hai)(hai)云(yun)杉林(lin)(lin)样(yang)(yang)地(di)(di)(di),占(zhan)53.82%;亚健(jian)(jian)(jian)康(kang)(kang)(kang)林(lin)(lin)包括1个(ge)(ge)苔(tai)藓(xian)-青(qing)(qing)海(hai)(hai)云(yun)杉林(lin)(lin)样(yang)(yang)地(di)(di)(di)和(he)3个(ge)(ge)草(cao)类-青(qing)(qing)海(hai)(hai)云(yun)杉林(lin)(lin)样(yang)(yang)地(di)(di)(di),占(zhan)30.77%;不(bu)健(jian)(jian)(jian)康(kang)(kang)(kang)林(lin)(lin)包括2个(ge)(ge)灌(guan)木(mu)-青(qing)(qing)海(hai)(hai)云(yun)杉林(lin)(lin)样(yang)(yang)地(di)(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](1325) [PDF 451KB](715)
摘要:
以(yi)长(zhang)沙市辖五(wu)区及(ji)(ji)周(zhou)边郊区10 km范围内(nei)湿地为(wei)(wei)(wei)(wei)研究(jiu)(jiu)对象,对不同(tong)湿地类型(xing)植(zhi)(zhi)(zhi)(zhi)物(wu)物(wu)种多样性及(ji)(ji)其(qi)变化(hua)特(te)征进行了(le)(le)分析,根据不同(tong)湿地类型(xing)中植(zhi)(zhi)(zhi)(zhi)物(wu)种组成,探讨(tao)了(le)(le)植(zhi)(zhi)(zhi)(zhi)物(wu)种在湿地中的分布(bu)及(ji)(ji)定居特(te)点。研究(jiu)(jiu)表明(ming),长(zhang)沙市不同(tong)湿地类型(xing)中主(zhu)要有(you)芦苇(Phragmites australis)、菖(chang)蒲(Acorus calamus)、菱(Trapa bispinosa)、野艾蒿(hao)(Artemisia lavandulaefolia)、问(wen)荆(Equisetum arvense)、苍耳(er)(Xanthium sibiricum)、一年(nian)蓬(Erigeron annuus)、空心莲子草(Alternanthera philoxeroides)等20个(ge)植(zhi)(zhi)(zhi)(zhi)物(wu)群(qun)落(luo);植(zhi)(zhi)(zhi)(zhi)被类型(xing)以(yi)草本(ben)群(qun)落(luo)为(wei)(wei)(wei)(wei)主(zhu),并(bing)且(qie)主(zhu)要为(wei)(wei)(wei)(wei)二年(nian)或多年(nian)生(sheng)植(zhi)(zhi)(zhi)(zhi)物(wu),共有(you)24种,其(qi)次(ci)(ci)有(you)14种一年(nian)生(sheng)草本(ben),而(er)灌木与乔(qiao)木等木本(ben)植(zhi)(zhi)(zhi)(zhi)物(wu)分布(bu)较少(shao);不同(tong)湿地类型(xing)植(zhi)(zhi)(zhi)(zhi)物(wu)种丰富度(du)差异不大,植(zhi)(zhi)(zhi)(zhi)物(wu)种丰富度(du)最高为(wei)(wei)(wei)(wei)23个(ge)种,其(qi)中特(te)有(you)种只有(you)5个(ge)。从河流(liu)湿地到沟(gou)渠,种多样性指(zhi)数(shu)变化(hua)没有(you)明(ming)显规律,Simpson指(zhi)数(shu)和ShannonWiener指(zhi)数(shu)最大的是沟(gou)渠,分别为(wei)(wei)(wei)(wei)18.08和3.75,其(qi)次(ci)(ci)是山塘(tang)水库;Pielou均匀度(du)指(zhi)数(shu)表现出与多样性指(zhi)数(shu)大体(ti)一致的状况(kuang),沟(gou)渠>山塘(tang)>河流(liu)>湖泊>景观水面。
甘肃夏河高寒牧区紫花苜蓿引种试验
2012, 6(4): 636-639.
[摘要](1194) [PDF 361KB](719)
摘要:
金皇(huang)后(Golden Empress)、阿尔冈金(Algonquin)、苜(mu)蓿(xu)(xu)王(Alfaking)、巨人201(Ameristand 201)4个紫花苜(mu)蓿(xu)(xu)(Medicago sativa)品(pin)种(zhong)(zhong)原引(yin)自(zi)美国(guo),2004-2007年(nian)(nian)在(zai)(zai)甘肃省夏河县进行(xing)引(yin)种(zhong)(zhong)试验,对其生育期、生长高(gao)度、分(fen)枝数、鲜草(cao)产(chan)量(liang)、越(yue)(yue)冬(dong)率和抗逆性(xing)等指标进行(xing)了测定。结果表明,4个紫花苜(mu)蓿(xu)(xu)品(pin)种(zhong)(zhong)产(chan)草(cao)量(liang)较高(gao),生产(chan)性(xing)能好(hao),播种(zhong)(zhong)第(di)(di)1年(nian)(nian)平均越(yue)(yue)冬(dong)率在(zai)(zai)70%以上,第(di)(di)2年(nian)(nian)后平均越(yue)(yue)冬(dong)率在(zai)(zai)90%以上,抗逆性(xing)强,第(di)(di)3年(nian)(nian)后部(bu)分(fen)种(zhong)(zhong)子成熟,但产(chan)籽量(liang)较低(di),适(shi)合在(zai)(zai)海拔3 000 m的高(gao)寒牧区推(tui)广(guang)种(zhong)(zhong)植建植栽培草(cao)地。
海拔对高山植物交配系统的影响
2012, 6(4): 640-645.
[摘要](1369) [PDF 424KB](1283)
摘要:
交(jiao)(jiao)配(pei)系(xi)统(tong)是控制(zhi)遗传(chuan)(chuan)物(wu)(wu)(wu)(wu)质(zhi)在世代间传(chuan)(chuan)递的(de)(de)(de)直接方式,影(ying)响着(zhe)植(zhi)物(wu)(wu)(wu)(wu)种(zhong)群(qun)内和(he)种(zhong)群(qun)间遗传(chuan)(chuan)变异分布,决定着(zhe)后代种(zhong)群(qun)的(de)(de)(de)遗传(chuan)(chuan)结(jie)构和(he)遗传(chuan)(chuan)多样性。交(jiao)(jiao)配(pei)系(xi)统(tong)除了体现(xian)植(zhi)物(wu)(wu)(wu)(wu)本身的(de)(de)(de)生(sheng)物(wu)(wu)(wu)(wu)学特(te)性之(zhi)外,还因(yin)(yin)环(huan)境条(tiao)件(jian)(jian)的(de)(de)(de)改变而发(fa)生(sheng)改变和(he)进(jin)化。海(hai)(hai)拔(ba)对(dui)环(huan)境因(yin)(yin)子在垂(chui)直方向上分布的(de)(de)(de)影(ying)响呈现(xian)出(chu)一定的(de)(de)(de)规律性,因(yin)(yin)而影(ying)响着(zhe)植(zhi)物(wu)(wu)(wu)(wu)的(de)(de)(de)交(jiao)(jiao)配(pei)系(xi)统(tong)。对(dui)交(jiao)(jiao)配(pei)系(xi)统(tong)的(de)(de)(de)进(jin)化模式研究(jiu)发(fa)现(xian),随着(zhe)海(hai)(hai)拔(ba)的(de)(de)(de)升高交(jiao)(jiao)配(pei)系(xi)统(tong)有从异交(jiao)(jiao)向自交(jiao)(jiao)演变的(de)(de)(de)倾向,甚至在极端环(huan)境下植(zhi)物(wu)(wu)(wu)(wu)的(de)(de)(de)进(jin)化产生(sheng)多倍体以适(shi)应恶劣(lie)的(de)(de)(de)环(huan)境条(tiao)件(jian)(jian)。本研究(jiu)根据大(da)量已(yi)有的(de)(de)(de)研究(jiu)成果,从海(hai)(hai)拔(ba)影(ying)响植(zhi)物(wu)(wu)(wu)(wu)交(jiao)(jiao)配(pei)系(xi)统(tong)的(de)(de)(de)传(chuan)(chuan)粉者数量、区(qu)系(xi)、传(chuan)(chuan)粉方式、植(zhi)物(wu)(wu)(wu)(wu)生(sheng)活史、花朵构件(jian)(jian)等方面进(jin)行了总结(jie)和(he)概述。
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](986) [PDF 413KB](718)
摘要:
为(wei)了解(jie)牡丹江市周边农(nong)田中(zhong)啮(nie)齿(chi)动物(wu)种群数量和(he)分布(bu)变化规律,以及对农(nong)业造(zao)成(cheng)危害的(de)主要(yao)害鼠(shu)(shu)(shu)种类及其生活(huo)习性,于2010年3-11月通过(guo)实地考(kao)察,利用夹日法、挖洞法、水灌烟熏法采集标本,结果表明,农(nong)田啮(nie)齿(chi)动物(wu)7种,隶属(shu)3目5科7属(shu),黑线姬鼠(shu)(shu)(shu)(Apodemus agrarius)为(wei)主要(yao)优(you)势种;啮(nie)齿(chi)动物(wu)的(de)密度有2个(ge)高(gao)峰期(qi),分别(bie)在6-7月和(he)10月;黑线姬鼠(shu)(shu)(shu)和(he)大仓鼠(shu)(shu)(shu)(Cricetulus triton)对农(nong)田危害最为(wei)严(yan)重,且有贮食行为(wei)。根据调查(cha)情况对害鼠(shu)(shu)(shu)提出防治措施(shi),为(wei)预防鼠(shu)(shu)(shu)害提供(gong)科学依据。
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](1363) [PDF 486KB](785)
摘要:
以尖叶胡枝子(Lespedeza hedysaroides)为原料(liao)(liao),对其(qi)表面(mian)附生的(de)(de)2株乳(ru)酸(suan)(suan)菌(jun)(jun)(jun)(jun)(LH29、LH33)的(de)(de)生化(hua)特性、生长(zhang)特性、产酸(suan)(suan)速率进行了(le)研究,经传(chuan)统(tong)鉴定(ding)方法及(ji)(ji)(ji)16S rRNA分(fen)析(xi)方法鉴定(ding),LH29为戊糖(tang)片球(qiu)菌(jun)(jun)(jun)(jun),LH33为植物乳(ru)杆菌(jun)(jun)(jun)(jun);发(fa)酵(jiao)(jiao)初(chu)期(qi)戊糖(tang)片球(qiu)菌(jun)(jun)(jun)(jun)产酸(suan)(suan)速率优于植物乳(ru)杆菌(jun)(jun)(jun)(jun),发(fa)酵(jiao)(jiao)中后期(qi)后者(zhe)产酸(suan)(suan)速率优于前者(zhe);将(jiang)SNOW LACTL (SL)和(he)纤维(wei)素酶(AC) 2种添加(jia)剂添加(jia)至尖叶胡枝子中,研究了(le)不同发(fa)酵(jiao)(jiao)时间(jian)微生物数(shu)量的(de)(de)动态变(bian)化(hua)及(ji)(ji)(ji)发(fa)酵(jiao)(jiao)品(pin)质(zhi)。发(fa)酵(jiao)(jiao)初(chu)期(qi),各(ge)种微生物的(de)(de)数(shu)量较青贮原料(liao)(liao)上的(de)(de)数(shu)量有(you)较大(da)的(de)(de)增长(zhang),发(fa)酵(jiao)(jiao)第2天(tian),添加(jia)AC处理组(zu)的(de)(de)乳(ru)酸(suan)(suan)菌(jun)(jun)(jun)(jun)数(shu)量最高(gao),SL+AC添加(jia)组(zu)的(de)(de)乳(ru)酸(suan)(suan)菌(jun)(jun)(jun)(jun)的(de)(de)数(shu)量显著高(gao)于对照(zhao)(zhao)组(zu)(P<0.05),发(fa)酵(jiao)(jiao)第30天(tian),乳(ru)酸(suan)(suan)菌(jun)(jun)(jun)(jun)、好氧(yang)细菌(jun)(jun)(jun)(jun)、酵(jiao)(jiao)母菌(jun)(jun)(jun)(jun)、霉(mei)菌(jun)(jun)(jun)(jun)及(ji)(ji)(ji)大(da)肠(chang)杆菌(jun)(jun)(jun)(jun)的(de)(de)数(shu)量有(you)所减少,大(da)肠(chang)杆菌(jun)(jun)(jun)(jun)减少更(geng)明显;各(ge)添加(jia)组(zu)与(yu)对照(zhao)(zhao)组(zu)相比,氨(an)态氮及(ji)(ji)(ji)丁酸(suan)(suan)含量显著降低(P<0.05),乳(ru)酸(suan)(suan)含量明显提高(gao)(P<0.05)。通(tong)过Flieg青贮饲料(liao)(liao)评(ping)分(fen)方案(an)得出直接(jie)青贮饲料(liao)(liao)的(de)(de)发(fa)酵(jiao)(jiao)品(pin)质(zhi)较差,等级为劣,而添加(jia)AC及(ji)(ji)(ji)SL+AC处理的(de)(de)青贮饲料(liao)(liao)发(fa)酵(jiao)(jiao)品(pin)质(zhi)Flieg等级为优。
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](1091) [PDF 733KB](958)
摘要:
为提高水(shui)稻(dao)(Oryza sativa)青(qing)(qing)(qing)贮发酵品(pin)质(zhi)与有(you)氧(yang)稳定性,本试验对(dui)培杂泰丰添(tian)加乳酸(suan)菌(青(qing)(qing)(qing)贮宝和(he)(he)(he)LD8)和(he)(he)(he)富糖(tang)(tang)物质(zhi)(蔗(zhe)糖(tang)(tang)和(he)(he)(he)菠(bo)萝(luo)皮(pi))进行了研究。结果(guo)表明,所(suo)(suo)有(you)添(tian)加物处理(li)的(de)(de)pH值都较(jiao)低,除蔗(zhe)糖(tang)(tang)外均(jun)显(xian)著低于(yu)对(dui)照(P0.05),添(tian)加菠(bo)萝(luo)皮(pi)、青(qing)(qing)(qing)贮宝和(he)(he)(he)LD8的(de)(de)青(qing)(qing)(qing)贮料(liao)(liao)之(zhi)间(jian)pH值没有(you)显(xian)著差异(yi)(P0.05);所(suo)(suo)有(you)添(tian)加物处理(li)的(de)(de)丁酸(suan)含量显(xian)著低于(yu)对(dui)照(P0.05),特别是菠(bo)萝(luo)皮(pi)、青(qing)(qing)(qing)贮宝和(he)(he)(he)LD8改(gai)善水(shui)稻(dao)的(de)(de)发酵品(pin)质(zhi)效(xiao)果(guo)显(xian)著。青(qing)(qing)(qing)贮开(kai)封后,添(tian)加菠(bo)萝(luo)皮(pi)和(he)(he)(he)LD8的(de)(de)青(qing)(qing)(qing)贮料(liao)(liao)有(you)氧(yang)稳定性较(jiao)好。综合考虑(lv), LD8和(he)(he)(he)菠(bo)萝(luo)皮(pi)改(gai)善水(shui)稻(dao)青(qing)(qing)(qing)贮品(pin)质(zhi)的(de)(de)效(xiao)果(guo)最佳(jia)。
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](1395) [PDF 456KB](846)
摘要:
草(cao)坪(ping)(ping)草(cao)的(de)(de)(de)转基(ji)(ji)(ji)因(yin)(yin)(yin)(yin)技术已经有了很大(da)的(de)(de)(de)发展,目前已经在多种(zhong)(zhong)草(cao)坪(ping)(ping)草(cao)上转入了抗(kang)(kang)(kang)(kang)除草(cao)剂、抗(kang)(kang)(kang)(kang)病虫、抗(kang)(kang)(kang)(kang)旱抗(kang)(kang)(kang)(kang)盐、抗(kang)(kang)(kang)(kang)寒(han)抗(kang)(kang)(kang)(kang)热和延长绿期(qi)以(yi)及抗(kang)(kang)(kang)(kang)重(zhong)金属等(deng)外源的(de)(de)(de)功能基(ji)(ji)(ji)因(yin)(yin)(yin)(yin),获得了抗(kang)(kang)(kang)(kang)逆性提高(gao)的(de)(de)(de)转基(ji)(ji)(ji)因(yin)(yin)(yin)(yin)植株。综合(he)分析认为,在抗(kang)(kang)(kang)(kang)逆机理研究的(de)(de)(de)基(ji)(ji)(ji)础上选择(ze)更关键(jian)的(de)(de)(de)抗(kang)(kang)(kang)(kang)逆基(ji)(ji)(ji)因(yin)(yin)(yin)(yin)进(jin)行遗传转化(hua)、转化(hua)草(cao)坪(ping)(ping)草(cao)矮化(hua)和养分高(gao)效吸收的(de)(de)(de)基(ji)(ji)(ji)因(yin)(yin)(yin)(yin)、转基(ji)(ji)(ji)因(yin)(yin)(yin)(yin)技术与传统育种(zhong)(zhong)方法相结合(he)以(yi)及转基(ji)(ji)(ji)因(yin)(yin)(yin)(yin)草(cao)坪(ping)(ping)草(cao)的(de)(de)(de)安全性评价是(shi)将来(lai)需要重(zhong)点(dian)展开的(de)(de)(de)研究工作。
欧宝体育