中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 干热胁迫下两种苇状羊茅对不同水肥处理的响应机理 草业学报 2011,20 (1) 49-57
Position: Home > Articles > The response to different irrigation and fertilizer treatments of two tall fescues under heat and drought stress Acta Prataculturae Sinica 2011,20 (1) 49-57

干热胁迫下两种苇状羊茅对不同水肥处理的响应机理

作  者：
刘晓军;洪光宇;袁志诚;文俊;罗勇;洪儒;杨烈
单  位：
安徽农业大学农学院
关键词：
苇状羊茅;干热胁迫;水肥处理;抗性;生长
摘  要：
苇状羊茅是我国过渡区常用的四季常绿草坪草种,但在夏季苇状羊茅受到高温和干旱的双重胁迫。通过研究干热胁迫下不同灌溉与施肥管理措施对2种苇状羊茅品种火凤凰和科纳多的内部生理生化指标、外部形态学指标及草坪质量外观指标的影响,目的在于,1)分析灌溉和施肥管理对2个苇状羊毛品种对干热胁迫抗性的调控,2)通过该项实验筛选出适合在干热胁迫下不同品种的优化水肥管理措施。结果表明,1)不同组合水肥处理下的苇状羊茅2个品种,其抗逆性均有显著提升,MDA含量下降,火凤凰B1C1的MDA含量为16.461μmol/g,火凤凰B2C2为20.386μmol/g,POD活性升高,叶绿素含量上升,从科纳多对照的3.5813mg/g提高到科纳多B1C1的5.206 7mg/g。相对含水量提高,以外部形态而言,分蘖数和叶片数密度提高,适度的干旱胁迫提高了根冠比,浇水和施肥均能显著提高草坪质量。2)品种火凤凰的整体表现要优于科纳多,但差异均不显著。3)灌溉和施肥对干热胁迫下的苇状羊茅各项生理指标的影响均达到显著水平,但水肥间互作效应表现的并不显著。4)从水肥处理的结果来看,B1C1的组合,也就是每周浇水1次和每2周施肥1次,对苇状羊茅的综合抗性有提高调节作用,为最优水肥管理措施。5)苇状羊茅的不同品种对干热胁迫的适应性从地上部分和地下部分发生了分化,这对苇状羊茅的品种选育和夏季水肥管理有着重要的指导意义。
译  名：
The response to different irrigation and fertilizer treatments of two tall fescues under heat and drought stress
作  者：
LIU Xiao-jun1,3,HONG Guang-yu1,2,YUAN Zhi-cheng1,WEN Jun1, LUO Yong1,HONG Ru1,YANG Lie1(1.Agricultural College,Anhui Agricultural University,Hefei 230036,China;2.Life Sciences College, Inner Mongolia University,Hohhot 010020,China;3.Green Roof Co.,Ltd.Shanghai World Source,Shanghai 200240,China)
关键词：
tall fescue(Festuca arundinacea);heat and drought stress;water and fertilizer treatment;resistance;growth
摘  要：
Tall fescue is a popular turfgrass species used in Chinese transition zones but it suffers from both heat and drought stress in summer.A field study was conducted at Hefei,Anhui,in 2009,to 1) assess the effectiveness of irrigation and fertilizer treatments on regulation of drought/high temperature stress tolerances of two tall fescues(Fie phoenix and Coalnaduo),2) determine the optimum fertilizer and irrigation treatments that result in the most drought resistance and persistence of turfgrasses.1) The stress resistance of tall fescue under different irrigation and fertilizer treatments significantly improved,MDA contents decreased,POD activity increased,chlorophyll contents were raised,relative water contents increased,tillers and leaves per unit area were higher,and moderate irrigation improved root growth.In addition,visible turf qualities were upgraded with different fertilizer and irrigation treatments;2) Almost all the resistances of Fie phoenix were better than those of Coalnaduo,but the differences were not significant;3) Both irrigation and fertilization significantly improved stress resistant,but the interaction effect between irrigation and fertilization was not significant.4) B1C1 was the optimal irrigation and fertilization culture to increase stress resistance in summer;5) The resistant mechanism for adaption to high temperate and drought stress in summer,differed in the various varieties and was favored by breeding/selecting and culture management in summer.

相似文章

导出引用
计量
文章访问数: 10
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46