麦后移栽棉高产优质技术原理研究

Study on the Technical Principle of High Yield and Good Quality inTransplanted Cotton Following Wheat Harvest

本研究系统地阐述了麦后移栽棉的生长发育特性，从光能利用、营养代谢、物质积累与分配等方面，探讨了麦后移栽棉的生理特性，揭示了麦后移栽棉开花结铃规律。首先提出麦后移栽棉的光能利用为“高效型”，营养代谢为“旺盛型”；生长发育为“快速型”；开花结铃呈“集中型”。该研究在南京进行，本区光温资源优于沿海棉区，表明在热量资源丰富的江苏沿江、黑下河棉区，只要栽培措施得当，麦后移栽棉的产量水平可以达到麦套移栽棉水平。

The research stated systemtically growth and developmental.characters of trans-planted cotton following wheat harvest,to approach its physiological characters from differentaspects including solar-energy utilization,nutritional metabolism ,the accumulation and dis-tribution of assimilated products.It delineated regular patterns of flowering.It gives firstviewpoint of“high-efficiency type”in solar-energy utilization,“vigorous type”in nutri-tional metabolism,“speedy type”in growth and development,and “concentrated type”inflowering and bolling of transplanted cotton following wheat.The study was conducted atNanjing where resources of illumination and temperature are richer than in the coastal areas.In areas along Yangtze and Lixia River in Jiangsu Province where thermal resources are richer,the yield of the transplanted cotton following wheat can be able to approach that of the trans-planted cotton interplanted with barley,provided cultural practises are conducted perfectly.