杂交棉高产机理研究

Study on High-yield Mechanism of Hybrid Cotton

2007～2008年,在进行杂交棉高产栽培多因素多水平研究的同时,开展了杂交棉高产机理的辅助试验研究。结果表明,生产中推广的杂交棉一代比杂交棉二代、常规棉品种及杂交棉亲本在子棉产量、经济性状、生育性状、棉苗素质、叶绿素含量,光合速率、干物质生产与积累等方面有明显的杂种优势。研究为杂交棉高产栽培应用提供了科学依据。

In 2007-2008,the experiment with five factors and five levels was conducted to study the high-yield mechanism of hybrid cotton. The results were as follows： the F1 varieties had more obvious hybrid vigor than F2 ,conventional varieties and parents in seed cotton yield, economic characters, growing characters, seedling quality, chlorophyll content, photosynthetic rate and dry matter production and distribution.