鲁西地区常规棉聊棉6号留叶枝栽培的适宜密度研究  

Response of Cotton with Vegetative Branches to Plant Density in the Western of Shandong Province

作　　者：商娜 杨中旭 李秋芝 尹会会 王士红 李海涛 李彤 张晗 Shang Na;Yang Zhongxu;Li Qiuzhi;Yin Huihui;Wang Shihong;Li Haitao;Li Tong;Zhang Han(Liaocheng Research Institute of Agricultural Sciences,Liaocheng 252000,Shandong,Chin)

机构地区：[1]聊城市农业科学研究院,山东聊城252000

出　　处：《作物杂志》2018年第4期143-148,共6页Crops

基　　金：现代农业产业技术体系建设专项(CARS-18-37);山东省现代农业产业技术体系专项资金"山东省棉花创新团队-聊城综合试验站"(SDAIT-03-16)

摘　　要：以常规棉聊棉6号为试验材料,采用随机区组设计,于2015-2016年在山东省聊城市农业科学研究院示范园研究了密度(3.0万~9.0万株/hm2)对常规棉留叶枝栽培条件下棉花产量和品质的影响。结果表明:叶面积指数随密度的增加而增加,高密度(9.0万株/hm2)易造成田间严重隐蔽。留叶枝条件下,低密度(3.0万株/hm2)产量最高,叶枝对子棉产量的贡献率随密度的增加而减少。单位面积铃数、果枝和叶枝铃重、马克隆值均随密度增加而显著降低,同一年份密度对叶枝和果枝棉的衣分及其他纤维品质指标无显著影响。分析认为,在鲁西地区,常规棉留叶枝栽培的适宜密度为3.0万株/hm2,多雨年份要注意防止郁闭。In order to investigate the effect of plant density on yield and fiber quality of cotton with vegetative branches with conventional cotton Liaomian 6, field experiments were conducted in 2015 and 2016 at Liaocheng experimental station, Shandong Province. The results indicated that： 1） The leaf area index increased with the increase of density, and high density （90 000 plants/hm2） could cause serious concealment in the field. 2） The yield of low density （30 000 plants/hm2） was the highest among the desity from 30 000 to 90 000 plants/hm2, and the contribution rate of vegetative branches to cotton yield decreased with the increase of density. 3） The weight of the boll and the micronaire value decreased significantly with the increase of density. Nevertheless, there was no significant differences in lint percentage and other fiber quality indexes. It was concluded that 30 000 plants/hm2 was appropriate for the cultivation of cotton with vegetative branches in the Western of Shandong Province, but it was necessary to avoid excessive vegetative growth in rainy year.

关 键 词：聊棉6号 留叶枝 密度 产量 品质 干物质积累量 

分 类 号：S562[农业科学—作物学]