摘要
以常规稻早籼中早 1号、晚粳秀水 1 1、杂交水稻Ⅱ优 2 0 70、EXPH1为材料在中国杭州和印度Bagalore不同熟制下进行施用粒粒饱的试验。于水稻初穗期施用粒粒饱 (375g/hm2 ) ,在水稻灌浆成熟过程中可以看到 4种生物学效应 :1 )增进抽穗 ,齐穗期提早 2～ 3d ,并减轻“包颈”现象 ;2 )促进开花 ,使花期集中 ,花期缩短约 2d ;3)延缓剑叶和其他功能叶片的衰老 ,可谓“青秆黄熟” ;4)调节“粒间顶端优势” ,强势粒灌浆势进一步增强 ,弱势粒灌浆势提高 ,水稻产量增加。
Using two hybrid rice combinations and two conventional varieties as materials, the experiment was carried out under different season in Hangzhou, China and Bangalore, India . When the Lilibao (a plant growth substance including GA 3 and PP 333 , meaning every grain will be filled) was applied at initial heading stage, the panicle neck length could be enhanced by Lilibao treatment, the senescence of the latest three leaves was delayed; apical dominance inter grain could be regulated, and resulted in increasing grain weight and yield.
出处
《中国水稻科学》
CAS
CSCD
北大核心
2000年第2期93-97,共5页
Chinese Journal of Rice Science
