达乌里胡枝子开花结实及种子特性  

Flowering and Seeding Characteristics of Lespedeza davurica

作　　者：孙启忠[1] 玉柱[2] 赵淑芬 

机构地区：[1]中国农业科学院草原研究所,呼和浩特010010 [2]中国农业大学草地研究所,北京100094 [3]林西县草原工作站,内蒙古林西025250

出　　处：《牧草与饲料》2009年第4期27-30,共4页Journal of Forage & Feed

基　　金：现代农业产业技术体系建设专项资金;公益性行业（农业）科研专项经费项目（nyhyzx07-022）;“十一五”国家科技支撑项目（2006BAD16B03）和2006BAD04A04;农业部“948”项目（2006-G38）资助.

摘　　要：达乌里胡枝子从返青期到种子形成需要100—110d；生殖枝率高达95．4％；达乌里胡枝子的花序小花总数多，其结荚率较高，成熟率较低；种子的发芽率、硬实率、千粒重也不相同，种子收获期一般在9月20～25日；种子贮藏时间对其发芽率和硬实率有明显的影响；种子产量为573．04—591．77kg／hm^2。Usually, Lespedeza davurica needs 100 -110 d from turning green to seed formation, reproductive branches rate is high, up to 95.4%; the total floret number of inflorescence of L. davurica is high, and pod rate is also higher, but maturation rate is lower; Different harvest period seed generation rate, hard seed rate and TSW are different, the suitable harvest time is between Sep. 20 and 25; Seed storing time affects the generation rate and hard seed rate obviously; the seed yield is 573.04- 591.77 kg/ha.

关 键 词：达乌里胡枝子 开花习性 结实特性 种子特性 

分 类 号：S541.5[农业科学—作物学]