摘要
以短穗兔耳草(Lagotis brachystachya)为研究对象,采用随机区组设计,观测了不同氮磷肥料组合对其生长和克隆繁殖特性的影响。结果表明:短穗兔耳草的匍匐茎数、茎生叶数、匍匐茎长、分株叶片数、分株根长、分株高在不同氮磷肥料组合间存在显著差异(P<0.05),其中,处理的基株叶片数、匍匐茎数、茎生叶数及分株根长均达到最大值,分别为16.25片、7.23条、11.25片及4.32 cm;而对匍匐茎长无显著影响。因此,土壤氮磷肥力条件的差异对短穗兔儿草的克隆繁殖特性存在一定的可塑性。
The impacts of nitrogen and phosphorus on the characteristics of clonal reproduction of Lagotis brachystachya were studied by using the different combinations of nitrogen and phosphorus fertilizers in field.The results show that the stolon number,stem leaf number,stolon length,leaf number of ramets,ramet root length were significantly different（P≤0.05）among treatment groups.The effects on the characteristics of clonal reproduction were significant in Group C（middle nutrition level）expect stolon length and,the average maximum were 16.25,7.23,11.25 and 4.23.So different combinations of nitrogen and phosphorus fertilizer were plastic to the characteristics of clonal reproduction of the Lagotis brachystachya.
出处
《草原与草坪》
CAS
2010年第4期64-67,共4页
Grassland and Turf
基金
自然科学基金项目(30700563)
973计划课题(2009CB421102)专题项目
中科院"十二五"预研重要方向项目第二课题(KSCX2-YW-Z-1020-02)
国家科技支撑课题第一专题(2009BAC61B02-01)资助
关键词
短穗兔耳草
氮磷组合
克隆繁殖特性
Lagotis brachystachyum
combination of clonal reproduction
characteristics of nitrogen and phosphorus
