Differences in Properties of Seed Vigor BetweenArtificially and Naturally Aged Soybean Seeds
Seed longevity is an important index for assessing the soybean seed quality and it can be assessed by germination rate of naturally aged soybean seed.While the naturally aging usually takes a long time,artificially aging can save much time.There are,however,some inconsistencies between these two kinds of treatments.In this study,the seed vigor of 21 soybean germplasms were tested with germination characteristics after being artificially aged and naturally aged respectively.The results showed that 16 germplasms possessed the lower germination characteristics after being artificially aged compared with being naturally aged.while 2 artificially aged germplasms possessed the same and 3 artificially aged germplasms possessed higher germination characteristics compared with those being naturally aged.Association analysis identified that the germination characteristics of being artificially aged were positive related with those of being naturally aged,which indicating that the artificially aging was a good alternative way to assess the seed longevity compared with naturally aging for most of germplasms.Additionally,the germination characteristics of artificially aged germplasms was positively related with rule oil content,and negatively related with seed size and rule protein content.The results in this paper would set a solid foundation for further researches on the soybean seed longevity.
soybeanartificially accelerated agednatural agedvigor index
NETL
NSTL
万方数据
维普
