Effects of cultivars,plant population density,pod position on the seed vigor
品种、种植密度与结荚位对大豆种子活力的影响研究

The effects of cultivars,plant population density,pod position on the seed vigor were studied.The results show significant differences of the tested seed size,standard germination,AA test,conductivity among cultivars.Standard ge rmination and AA values of IA3013 are higher than those of FG1,while their con ductivities are inverse and there is difference of tested items between their de nsities.Seed size of bottom pod is heavier than those of middle and top.Standard germination and AA test values are higher than those of top,the conductivity is lower than that of top.Interactions between PPD and pod position,cultivars a nd pod position are null.