百脉根不同成熟期的种用特性

A study on seed characteristics of Lotus japonicus at maturity stage

本研究对不同成熟期采收的百脉根(Lotus corniculatus)种子和荚果进行了多种因素及指标的分析。结果表明,百脉根种子成熟很不一致,裂荚性极强。生产中,种子损失严重,而且所收获的种子品质也差;其种子产量和品质受到单位面积裂荚数和成熟荚果数的制约。在裂荚最少、成熟荚最多时收获最佳,不仅种子产量高、饱满种子数多,千粒重大,而且种子内部各营养成分的转化积累已基本完成,这时的种子具有发芽性能好,发芽势、发芽率、活力指数高,平均发芽天数短等特性。

The study analyzed maturated seed characteristics of Lotus japonicus. The results indicated that L. japonicus seeds matured at different time with splitting sharply. Under normal production circum stance, the seed loss was serious and quality of seed was not good. The yield and quality of seeds were affected by split numbers and matured pod numbers. The harvest of L. japonicus seeds should be at the stage with the lowest split and the highest matured pod number. The seeds harvested at this stage should not only have higher yield, higher numbers of filled seeds, heavier 1 000 seed weight and sufficient nutrients, but also have higher sprout ability, germinating potential, and germination percentage and vigor index as well.