密度对麦后直播棉生育特性、产量及品质的影响

以常规无限果枝类型棉花品种CN01为材料,研究了密度对麦后直播棉生育特性、产量及品质的影响。结果表明,密度对麦后直播棉生育进程无明显影响,果节形成高峰期为7月26日至8月5日,成铃高峰期为8月16-25日,高峰期内群体果节日增量和成铃强度随着密度的增加而增大。麦后直播棉产量由伏桃、秋桃和晚秋桃构成,秋桃占53.57%~56.07%,成铃率随着密度的增加呈下降趋势。其中67 500和60 000株/hm2处理产量优势明显,纤维品质综合性状优良。

Effect of Density on Growth Characteristics anb Yielb anb Quality in Fielb Seebling Cotton after Wheat

Taking CN01 conventional types of fruit branches unlimited as materials,studied the effects of density on growth characteristics and yield and quality of field seedling cotton after wheat The results showed:density had no significant effect on the growth process of field seedling cotton after wheat,the peak period of fruit node formation is from July 26th to August 5th,the peak period of Boll-setting is from August 16th to August 25th,daily increment of group fruit node and boll forming intensity increase with the increase of density during the peak period.V peach,autumn peach and late autumn peach consist of the yields of field seedling cotton after wheat,autumn peach is the master of them, accounting for 53.57%~56.07%,the rate of boll forming decreased as the density increased. 67500 strains/hm2 and 60000 strains/hm2 have the processing yield obvi-ous advantages among them,fiber quality with excellent comprehensive properties.