新疆农业科学2023，Vol.60Issue(11)：2638-2645,8.DOI:10.6048/j.issn.1001-4330.2023.11.005
种植密度对适宜机采棉花品系农艺和产量品质性状的影响
The influence of different planting densities on agronomic traits,yield and quality of machine-picked cotton varieties
摘要
Abstract
[Objective]In order to determine the suitable planting density of JI JC4 and JI JC7 in Hebei cotton area,the effects of different planting densities on growth and development,yield,quality and disease resistance were studied.[Methods]4 different planting densities(4.5 × 104,9 ×104,13.5 ×104 and 18 × 104 plant/hm2)were set to investigate the agronomic traits,yield,quality and disease resistance of cotton,and the optimum planting densities of JI JC4 and JI JC7 were comprehensively analyzed.[Results]With the increase of planting density,the plant height of JI JC4 and JI JC7 decreased,the height of the first node of fruit branch increased,and the whole growth period delayed.The lint yield of JI JC4 was higher with the in-crease of planting density,and the difference was obvious.The density of JI JC7 line had little effect on lint yield.Different planting densities had effect on micronaire value of JI JC4,on elongation of JI JC7,and had no significant effect on other cotton fiber quality indexes.With the increase of planting density,Verticillium wilt disease index decreased and its resistance increased.[Conclusion]Overall,the suitable planting density of JI JC4 and JI JC7 were 13.5 × 104 plant/hm2.关键词
棉花/种植密度/机采性状/黄萎病/产量/品质Key words
cotton/planting density/mechanical harvest traits/Verticillium wilt disease/yield/quality分类
农业科技引用本文复制引用
王海涛,张建宏,刘存敬,唐丽媛,张素君,蔡肖,李兴河,马文娜,韩俊伟,张香云..种植密度对适宜机采棉花品系农艺和产量品质性状的影响[J].新疆农业科学,2023,60(11):2638-2645,8.基金项目
河北省农林科学院基本科研业务费项目"陆地棉果枝节间长度相关基因挖掘研究"(2023070104) （2023070104）
三期现代农业产业技术体系河北省创新团队建设项目(HBCT2023070202) （HBCT2023070202）
河北省农林科学院科技创新专项"棉花重要性状优异基因位点挖掘及新品种选育"(2022KJCXZX-MHS-1) （2022KJCXZX-MHS-1）
河北省农林科学院棉花研究所所立项目"陆地棉果枝节间长度相关标记开发和基因挖掘"(mhs202201)Basic Research Funds of Hebei Academy of Agriculture and Forestry Sciences(2023070104) （mhs202201）
The third phase of modern agricultural industry technology system Hebei innovation team construction project(HBCT2023070202) （HBCT2023070202）
HAAFS Science and Technology Innova-tion Special Project(2022KJCXZX-MHS-1) （2022KJCXZX-MHS-1）
Projects established by Cotton Research Institute of Hebei Academy of Agriculture and Forestry Sciences(mhs202201) （mhs202201）
