1973年以来,我们对豫南稻田主要绿肥作物紫云英种子的发芽习性进行了一些研究,现将结果整理于后,以供参考。一、紫云英种子的休眠期初收的紫云英种子,须经过后熟作用才能正常发芽,这一段时间叫种子的休眠期。三年测定结果表明:(1)紫云英种子有较长的休眠期。留种田一般于5月中旬成熟,收下的种子,绝大多数到9月初才能解 Since 1973, we carried out some researches on the germination habits of the milk vetch seed, the main green manure crop in the south of Henan Province, and the results are compiled for reference later. First, the vetiver seed dormancy Early harvest of Chinese milk vetch seed, to be normal after germination to germinate, this period of time called seed dormancy. Three years of measurement results show that: (1) Asclepiadaceae seeds have a longer dormant period. Stay farming generally mature in mid-May, the seeds received, the vast majority of early September to be able to solution