摘要
籼粳杂交稻赣化７号的结实率低主要受制于源不足。赣化７号和汕优６３的“库”“源”特征和氮素反应有密切关系。赣化７号的“库”形成对氮素反应较“源”敏感。增加栽插密度可适当改善“库”“源”比，并对“库”“源”指标的定义进行了讨论。
The insufficient Source was the main cause of the low percentage of the filled grains in indica ─japonica F1 hybrids.There was a close correlation between the N uptake and the characteristics of sink and source.The formation of sink in Genhua 7 was more sensitive to the N application than that of source.The ratio of sink to source could be improved by the change of the planting density.The definition of the in- dices of sink and source was also discussed.
出处
《杂交水稻》
CSCD
北大核心
1995年第4期19-22,共4页
Hybrid Rice
关键词
籼粳
氮素
特征
杂交水稻
栽培
rice
indica─japonica F1 hybrids
nitrogen uptake:sink
source
