Improvement of seed setting percentage of cabbage self incompatibility line by spraying fertilizers in an ex - root way 根外追肥对提高甘蓝自交不亲和系结实率的效果
The hphr not only has a larger sink but also possesses normal grain - filling , sink - filling , high seed - setting percentage and heavier panicles 重穗型组合杂交稻不仅库容大,而且籽粒充实率、充实程度良好,结实率正常。
5 . the fructified rate by self - pollination is 19 . 4 % , and the rate by artificial pollination amounts to 67 . 2 % . the best time of pollintion is 24 hours after blooming 自花受粉结实率为19 . 4 % ,人工辅助授粉结实率达67 . 2 % ,最佳授粉时间在开花后24小时前后。
It was also observed that the “ inter - grain apical dominance ” in hybrid rice was stronger than its restorer , which might be one of the main reasons for low seed setting in hybrid rice combination 强势粒对弱势粒物质摄取能力的优势,可能是杂交稻籽粒结实率低下的重要原因之一。
The results showed that the setting rate of parent varieties has positive influences on that of combinations in general , especially for parent variety " minghui63 " , " gui99 " and " r838 " 结果表明,父本品种结实率对组合结实率普遍存在程度不同的正相关影响,尤以明恢63 ,桂99 , r838的影响明显。