特效植物营养素对芥菜型油菜的增产效果及表观遗传效应

Yield-increasing effect and epigenetic effect of SPNE on Brassica juncea Czern.et Coss

以芥菜型油菜常规种为材料,研究了特效植物营养素对油菜4代产量性状的影响,并对第5代种子进行了测定,比较了种子发芽率和发芽势、幼苗株重、株高、叶片大小以及叶绿素、蛋白质和DNA含量。结果表明,SPNE使油菜增产的效果随着处理代数的增加而增大.其优良性状能通过种子遗传。产生表观遗传效应.此效应也随着用SPNE处理代数的增加而增强,其中每代都用SPNE处理的油菜的增产效果最好,表明SPNE能在提高油菜产量的同时能使种子更优良。

Conventional cuhivars of Brassica juncea Czern. et Coss were taken as trial materials. The yield character of treatment treated by SPNE for four generations was campaied with the contrast. Meanwhile, a series of laboratory analysis had been conducted for comparing seed germinative rate and germination energy, wheight and height of seedling,area of leaf ,content of chlorophyl and protein, DNA amout of plant that treated by SPNE at the fifth generation. The results showed that the yieldincreasing effect of SPNE on Brassicajuncea Czern. et Coss could be increased gradually from generation to gengeration. Fine properties could be inherited by seeds, which meaned that SPNE could produce epigenetic effect and the effect also could be strengrhened from generation to gengeration. The yield-increasing effect of treatment treated by SPNE at each generationl was the best. Therefore, SPNE could increase yield and made Brassicajuncea Czern. et Coss seeds finer at the same time.