种植密度和行距对Ⅰ式果枝棉麦(油)后直播成铃和产量的影响  

Influences of Planting Density and Row Spacing on Boll Setting and Cotton Yield Traits of “Ⅰ” Plant Type Cotton Directly Sown after Wheat(rape) Harvest

作　　者：冯常辉[1] 张友昌[1] 陈再兴 习桂梅 易先达[1] 张成[1] 秦鸿德[1] FENG Chang-hui;ZHANG You-chang;CHEN Zai-xing;XI Gui-mei;YI Xian-da;ZHANG Cheng;QIN Hong-de(Institutc of Industrial Crops,Hubci Academy of Agricultural Scienccs /Key Laboratory of Cotton Biology and Breeding in the Middle Reaches of the Changjiang Rivcr,Ministrry of Agriculturc,Wuhan 430070,China;Agricultural Bureau of Renmindayuan Farm,Jianli 433321,Hubei,China)

机构地区：[1]湖北省农业科学院经济作物研究所/农业部长江中游棉花生物学与遗传育种重点实验室,武汉430070 [2]人民大垸农场农业局,湖北监利433321

出　　处：《湖北农业科学》2018年第15期28-31,34,共5页Hubei Agricultural Sciences

基　　金：湖北省农业科技创新中心资助项目(2016-620-000-001-010);国家科技支撑计划项目(2014BAD11B0203)

摘　　要：Ⅰ式果枝棉具有早熟且成铃集中的性状,适合机械化采收。以Ⅰ式果枝品系ZS07为试验材料,分析了长江中游麦(油)后直播棉在宽行、宽窄行和窄行(宽行:0.76 m、宽窄行:0.66+0.10 m、窄行:0.50 m)配置方式下不同密度(6.0万、7.5万、9.0万、10.5万、12.0万株/hm^2)以及超窄行距(0.38 m)配置方式下不同密度(12.0万、15万、18万、21.0万、24.0万株/hm^2)的子棉产量和成铃性状。结果表明,在窄行方式下,种植密度对子棉产量和群体成铃数的影响显著;宽窄行和窄行方式下,子棉产量和群体成铃数随着密度的增加而增加;宽行、超窄行方式下,子棉产量随着密度的增加先升后降;宽行方式下的子棉产量明显低于其他3种行距配置方式。Ⅰ式果枝类型棉花生产上,合理密植且缩小行距是增产增效的有效种植模式。＂Ⅰ ＂ plant type cotton was a promising alternative for mechanical farming attribute to their key features,such as early maturity and also intensive boll setting. ＂Ⅰ＂plant type variety ZS07 was used as test material to analyze the seed cotton yield and boll setting traits of the cotton directly sown after wheat（rape） harvest in the middle reaches of the Changjiang River with five planting density（6.0×10~4,7.5×10~4,9.0×10~4,10.5×10~4,12.0×10~4 plant/hm^2） under wide row（0.76 m）,wide-narrow row（0.66＋0.10 m）,narrow row（0.50 m） and with another five plant density（12.0×10~4,15.0×10~4,18×10~4,21.0×10~4,24.0×10~4 plant/hm^2） under ultra-narrow row（0.38 m）. The results showed that,the planting density had obvious influence on seed cotton yield and population boll number under narrow row. Seed cotton yield and population boll number indicated an increase trend along with the enlarging density under wide-narrow and narrow row. The seed cotton yield under wide row, ultra-narrow row was first increased then decreased. The seed cotton yield under wide row was obviously lower than that under the other three row spacing. Therefore, narrowing row spacing at a high planting density in practice might be a reasonable planting pattern to increase the production and efficiency of ＂Ⅰ＂plant type cotton.

关 键 词：Ⅰ式果枝棉 麦(油)后直播 密度 行距 

分 类 号：S562[农业科学—作物学]