麦后移栽棉不同品种棉铃内干物质积累与分配研究  

Studies on Accumulation and Distribution of Dry Matter in Cotton Bolls in Various Varieties of Cotton Transplanted After Wheat Harvest

作　　者：高英[1] 高璆[1] 金桂红[1] 汤一卒[1] 

机构地区：[1]南京农业大学,南京210014

出　　处：《棉花学报》1993年第2期55-61,共7页Cotton Science

基　　金：国家自然科学基金

摘　　要：以陆地棉早熟品种中棉14、中熟品种苏棉4号和泗棉2号为材料,研究了麦后移栽棉不同开花期棉铃内干物质积累分配的特点:麦后移栽棉棉铃各部分干物质积累比一熟棉和麦套棉时间长,并随开花期的推迟,干物质积累高峰期相应推迟。早熟品种干物质积累和运转比中熟品种快1～2周。后期低温影响铃壳养分向子棉输送,尤其对种子的影响更为严重。因此,麦后移栽棉在生产上更应强调早发、早熟、争高产优质。Three upland cotton varieties, Zhong mian suo 14 (early ripening), Su mian 4 and Simian 2(medium ripening), were used to study the accumulation and distribution of dry matter in cotton bolts at various flowering stages of the cotton transplanted after wheat harvest. Dry matter accumulation in all parts of bolls need more time than that of the directly planted cotton within wheat rows before wheat harvest. The later the aceurrence of flowering period, the later the peak accumulation period of dry matter. Accumulation and transportion of dry matter in early maturity variety are one or two weeks faster than those of medium maturity varieties, low temperature affect the transportion of nutrients in the boll into the fiber, especially the seed. Technique of cotton transplanted after wheat harvest with early development in production is recommanded.

关 键 词：麦后移栽棉 棉铃 干物质积累 棉花 

分 类 号：S562.01[农业科学—作物学]