摘要
大穗型水稻品种超丰早和中穗型品种湘早籼13，齐穗后进行剪叶疏粒处理创造不同的库源比例，重点考察了源库互作关系，干物质生产和分配，源、库、流活性的动态变化和产量性状等。结果表明，库对源具有反馈促进作用，库／源比高和库容量大的处理净同化率（NAR）较高，茎鞘和叶中非结构碳水化合物滞留量少，14C同化物向籽粒输送比例增加，输导组织和库器官活性趋于增强。
A large-panicle cultivar Chaofengzao and a medium-panicle cultivar Xiangzaoxian 13 were used,bymeans of leaf-cutting and spikelet-thinning treatments in order to make different sink/source ratio,to study thecharacters of source-sink interaction,dry matter production and its partitioning,the change trends of activities ofsource,sink and transport organs. The results indicated that the treatments with higher sink/source ratio and sinkcapacity had a higher net assimilating rate (NAR),less nonstructural carbohydrate content in stem and leaf,highertransport rate of 14C-assimilate into grains,and higher activities of sink and transport organs.
出处
《中国水稻科学》
CAS
CSCD
北大核心
1998年第S1期21-28,共8页
Chinese Journal of Rice Science
关键词
源库关系
同化物分配
生理生化指标
产量性状
assimilate partitioning
physiological and biochemical index
source-sink relationship
yield components
