【摘要】 [目的]探讨辽宁省特早熟棉区豌豆后直播特早熟棉的可行性及不同播期对直播特早熟棉生长发育及产量构成因素的影响。[方法]以特早熟棉新品种（系）辽7140、辽3971、辽6270、辽6358为材料，研究不同播期对棉花生长发育、产量构成因素及农艺性状的影响。[结果]随着播种时间的推迟，生育期加长，出苗时间缩短，株高增高，第1果枝高度、单株果枝数、单株结铃数和铃重逐渐降低；随着播期推迟，籽棉产量、皮棉产量、衣分均显著降低。[结论]可为辽宁地区豌豆后直播特早熟棉种植模式提供参考依据。更多还原

【Abstract】 [Objective] The aim was to investigate the feasibility of direct-seeding extra early cotton after pea in extra early cotton area of Liaoning and the influence of different sowing dates on the growth and yield components of extra early cotton. [Method] Using new cotton varieties(lines)Liao7140,Liao3971,Liao6270and Liao6358 as materials,the effects of different sowing dates on cotton growth and development,yield components and agronomic traits were studied. [Result] The results showed that with the delay of sowing time,the growth period and the time of seedling emergence was shortened. The plant height was increased and the height of the first fruit branch,the number of fruit branches per plant,the number of bolls per plant and boll weight decreased gradually. With the delay of sowing date,seed cotton yield,lint yield and lint percentage decreased significantly. [Conclusion] It could provide reference for pea planting in Liaoning region.更多还原