分布方式对不同穗型水稻群体生长发育动态的影响

辽粳326分蘖能力明显低于奥羽316,但其成穗率较高。分布方式之间分蘖数目上的差异仅在分蘖盛期有所体现,无序分布比有序分布多,但无序分布的成穗率较低;处理间总干物质重量在后三个时期差别较大,辽粳326比奥羽316大,无序分布比有序分布大,但在成熟期,差别不大;各处理间平均单穴绿色叶片重量无序分布与有序分布之间差别不大,从抽穗期开始辽粳326的叶片重量比奥羽316大;辽粳326的茎鞘重量从孕穗期开始一直比奥羽316大,无序分布与有序分布之间的茎鞘重量差别不大;在孕穗期奥羽316的单穗重比辽粳326大,在灌浆盛期与成熟期辽粳326明显比奥羽316大。无序分布略高于有序分布。

Effects of Distribution Pattern on Growth Regulation of Different Populations on the Different Model of Panicle in Rice

Tiller capacity of Liaojing326 was significantly lower than Aoyu316.But the percentage of productive filler of Liaojing326 was higher.There was difference of tiller quantity on distribution pattern at the tiller stage,disorderly-distributed was more than orderly-distributed,but the percentage of productive tiller of disorderly-distributed was lower.Difference of total dry matter was significant during the last three stages,Liaojing326 was higher than Aoyu316,disorderly-distributed was more than orderly distributed,but the difference was not significant at the maturing stage.Difference of average weight of green leaves per area aws not significant between orderly and disorderly-distributed population,and so was the difference of the weight of stem and leaf sheath.The weight of green leaves of Liaojing326 was higher than that of Aoyu316 from the beginning of booting stage.Panicle weight of Aoyu316 was higher than that of Liaojing326 at the booting stage,but the situation changed to the contrary at the maximum filling stage and maturing stage.And the panicle weight of disorderly-distributed cultivation was a little higher than that of orderly-distributed population.