摘要
以泗棉 3号作为近期育成的棉花高产品种的典型代表 ,与苏棉 5号进行比较 ,研究高产品种的源库流特点及其相互关系。其主要结果为 :高产品种具有较早的库形成能力 ,生殖生长势强 ,即在中期有较多的干物质进入生殖器官 ,同时幼铃 (1 0日龄 )应有较强的获得光合产物的能力。高温富照期有较高的成铃强度和库活性 ,叶源既要有较强的物质生产能力 ,还应将形成的产物尽快地输出。在生化方面 ,叶源具有较强的光系统 PSI和较高的 Ru BPcase活性。
The recently released high yielding cotton variety Simian3 was used as a typical representative and to be compared with the variety of Sumian 5.The source sink and their relations were studied so as to offer some internal and external reference indications for breeding new varieties. The main results acquired were as follows: prolific varieties are possessed usually of earlier capability of sink formation and strong reproductive growth vigor, which means more dry matter may be absorbed into the reproductive organs, additionally, juvenile buds (10 day old buds) may be with relatively strong ability of absorbing photosynthetic products, and the products thus formed may be exported as quickly as possible. On the biochemical respect, leaf source should be with relatively strong photo system PSI and rather high RuBPcase activity.
出处
《棉花学报》
CSCD
北大核心
2000年第6期298-301,共4页
Cotton Science
基金
江苏省"九五"粮棉单产增一成项目资助(96-03-01)
关键词
棉花
源库
特点
cotton
source sink
characterists
