干旱区生态环境知识资源中心(Arid): 不同水肥条件下两个燕麦品种的竞争关系

Arid

	不同水肥条件下两个燕麦品种的竞争关系
其他题名	The competitive relationship of two oat varieties under different water and fertilization conditions
	杜京旗 1; 杨卫民 1; 李刚 2; 宋丽 1; 刘旭丽 1; 白连梅 1; 刘琴琴 1
来源期刊	生态学杂志
ISSN	1000-4890
出版年	2017
卷号	36 期号:2 页码:420-427
中文摘要	采用de Wit取代系列法,探究了不同水肥条件下两个燕麦品种定燕1号和晋燕17号的竞争关系。结果表明:所有水肥处理中,晋燕17号的竞争能力强于定燕1号;低水低肥和高水高肥条件下,晋燕17号的地上生物量高于定燕1号;随着水肥梯度增加,定燕1号和晋燕17号的地上生物量中茎比重均增加,叶比重均减少;所有处理中,晋燕17号的单播产量和收获指数均高于定燕1号;晋燕17号通过提高地上生物量和收获指数达到高产的目的。竞争能力和收获指数的同步提高有望成为干旱区作物育种的一个关注焦点。
英文摘要	A de Wit replace series experiment was used to explore the competitive relationship of two oat varieties of Dingyan 1 and Jinyan 17 under different levels of water and fertilizer application. The results showed that Jinyan 17 had greater competitiveness than Dingyan 1 under a series of water and fertilization conditions. Under low water + fertilization or sufficient water + fertilization, the aboveground biomass of Jinyan 17 was significantly higher than that of Dingyan 1. With the increasing levels of water and fertilization,the ratio of stem biomass to aboveground biomass of Dingyan 1 and Jinyan 17 increased, and the ratio of leaf biomass to aboveground biomass of both oat varieties decreased. In all treatments, grain yield in monoculture and harvest index of Jinyan 17 were greater than those of Dingyan 1. By simultaneous increase of aboveground biomass and harvest index, Jinyan 17 obtained higher grain yield. The synchronous improvement of competitive ability and harvest index is expected to become the focus of crop breeding in arid areas.
中文关键词	水肥条件 ; 竞争关系 ; 燕麦品种 ; 生物量分配
英文关键词	water and nutrient conditions competitive relationship oat varieties biomass allocation
语种	中文
国家	中国
收录类别	CSCD
WOS类目	BIOLOGY
WOS研究方向	Life Sciences & Biomedicine - Other Topics
CSCD记录号	CSCD:5909095
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/236551
作者单位	1.吕梁学院植物化学研究所, 吕梁, 山西 033000, 中国; 2.山西省农业科学院高寒区作物研究所, 大同, 山西 037000, 中国
推荐引用方式 GB/T 7714	杜京旗,杨卫民,李刚,等. 不同水肥条件下两个燕麦品种的竞争关系[J],2017,36(2):420-427.
APA	杜京旗.,杨卫民.,李刚.,宋丽.,刘旭丽.,...&刘琴琴.(2017).不同水肥条件下两个燕麦品种的竞争关系.生态学杂志,36(2),420-427.
MLA	杜京旗,et al."不同水肥条件下两个燕麦品种的竞争关系".生态学杂志 36.2(2017):420-427.