达乌里胡枝子开花结实及种子特性

Flowering and Seeding Characteristics of Lespedeza davurica

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.