摘要
以辽优3225及其亲本为试材,对灌浆期剑叶生理特性和经济性状进行了研究.结果表明:辽优3225剑叶叶绿素含量高于母本,与父本相近;辽优3225的过氧化物酶活性高于父本,略低于母本;灌浆前期辽优3225叶片果糖1,6-二磷酸酯酶(FBPase)活性高于父母本;灌浆前期硝酸还原酶活性较高,后期迅速降低.辽优3225产量优势明显,平均优势为18.5%,从产量结构看每穗成粒数是主要原因,平均优势为9.8%.
The physiological characters of flag leaves and economic characters of hybrid rice Liaoyou 3225 and its parents were studied during the grain filling, the results show：chlorophyll content of Liaoyou 3225 was higher than female parent but similar with male parent;POD activity of Liaoyou 3225 was higher than male parent but lower than female parent;During early filling stage, FBPase activity of Liaoyou 3225 was higher than parents; NR activity was higher in early stage and then lower. The heterosis of Liaoyou 3225 was evident, with dominants 18.5 %, while from the aspect of yield components, the increase of seeds per panicle contributed the most, with average dominants 9.8 %.
出处
《沈阳师范大学学报（自然科学版）》
CAS
2005年第4期401-404,共4页
Journal of Shenyang Normal University:Natural Science Edition
基金
国家"948"计划基金(30040025)
沈阳师范大学博士启动基金
关键词
水稻
杂种优势
生理特性
rice
heterosis
physiological characters
