期刊论文

中文

核农学报

1000-8551

2008

22

6

860-864

基金项目：国家自然科学基金项目（30370835） 湖南省中青年基金资助项目（00TZYZ068） 湖南省教育厅青年基金资助项目（028011）

本校为第一机构

以两系、三系杂交组合及其父本为材料,用14C同位素示踪法研究了头季稻齐穗期剑叶光合产物的分配及其与再生稻产量的相关性,结果表明:(1)头季稻齐穗期剑叶光合产物80%~90%分配到穗部,10%~20%残留于叶、茎,且主要残留在剑叶中,仅5%左右残留在茎鞘中,茎鞘各节间残留量一般表现为倒1>倒2>倒3>倒4的趋势,倒2以下节间贮藏的光合产物占茎秆总量的1/3~2/3,品种(组合)间差异较大;(2)稻桩贮藏光合产物的52%~70%转运至再生稻体内,且分配至穗部的最多;(3)头季稻成熟期残留在茎鞘中,特别是倒2以下节间中的光合产物越多越有利于再生稻产量的提高;(4)本试验条件下,再生稻产量构成因素中,影响产量的首要因素是穗...

Two line and three line hybrid rice combinations and their male parents were used as materials to study correlation between the distribution of photosynthates of flag leaf at full heading stage of main crop and the yield of paling enesis rice by 14C trace echnique. The results showed that： （1） 80% - 90% of photosynthates of flag leaf at full heading stage was distributed to panicle in main crop and 10%- 20% of remnant was in leaves and stems, and the most was in flag leaves. Only about 5 % was in stems and sheathes, and the amount in differe...