摘要
籼粳杂交稻赣化７号的源不足是其结实率低的主要原因。氮素吸收特性与库、源特征有关。赣化７号的库形成对氮素较敏感，而汕优６３的源形成对氮素较敏感。栽插密度和施氮量均可改变供试组合的库源比。
The insufficient source is the major cause of the low percentage of the filled grains in In-dica- aponica F_1 hybrid.There is a close correlation between the N uptake and the character-istics of sink and source. The formation of sink in Guahua 7 is more sensitive to the N appli-cation than the formation of its source.The ratio of sink/source could be improved by thechange of the planting density and N application. The definition of the index of sink andsource is alsodiscussed.
出处
《江西农业大学学报》
CAS
CSCD
1994年第4期333-339,共7页
Acta Agriculturae Universitatis Jiangxiensis
关键词
水稻
杂交稻
氮
库源特征
籼稻
粳稻
Indica-Japonica F_1 hybrid
nitrogen characteristics of sink and source
