棉花学报2025，Vol.37Issue(3)：209-220,12.DOI:10.11963/cs20250004
植棉密度对新疆南疆棉花株型及产量的影响
Effects of planting density on plant architecture and yield of cotton in southern Xinjiang
摘要
Abstract
[Objective]This research aimed to investigate the effects of different planting densities on the plant architecture and yield of cotton in southern Xinjiang,then to provide a theoretical basis for optimizing cultivation techniques.[Methods]From 2023 to 2024,field experiments were carried out in Yuli County,Xinjiang,with five kinds of cotton planting densities designed:280 000 plants·hm-2(D1),220 000 plants·hm-2(D2),180 000 plants·hm-2(D3),130 000 plants·hm-2(D4),and 90 000 plants·hm-2(D5).The cylinder-type variety,Xinluzhong 79(T1),and the tower-type variety,Xinshi 518(T2)were taken as research objects.The effects of different planting densities on plant height,internode length of fruiting branches,insertion angle and azimuth angle of fruiting branches and leaves,leaf area index(LAI),and yield traits of cotton were analyzed.[Results]The plant height of the T1 variety was the highest under D3 or D4 treatment,and the plant height of the T2 variety was the highest under D4 treatment.With the decrease of cotton planting density,the average internode length of fruiting branches of the T1 and T2 varieties gradually increased,and the insertion angle of fruiting branches in the lower,middle,and upper parts increased as a whole.Under D4 or D5 treatment,the leaf insertion angle in the lower,middle,and upper parts of the two varieties was the largest.Under different cotton planting densities,there were no significant differences in the leaf insertion angle in the lower,middle,and upper parts of the T1 variety;there were no significant differences in the fruiting branch azimuth angle in the lower part and leaf azimuth angle in the middle and upper parts of the T1 and T2 varieties.The LAI of the T1 and T2 varieties was the largest under D4 and D3 treatments,respectively.With the increase of cotton planting density,the number of bolls per plant decreased.T1 and T2 varieties showed the highest seed cotton yields under D3 and D1 treatments,respectively.[Conclusion]Different planting densities affect the plant architecture and yield of cylinder-and tower-type cotton varieties.The suitable planting densities for Xinluzhong 79 and Xinshi 518 in southern Xinjiang are 180 000 plants·hm-2 and 280 000 plants·hm-2,respectively.关键词
棉花/株型/种植密度/产量/塔形/筒形/新疆南疆Key words
cotton/plant architecture/planting density/yield/tower-type/cylinder-type/southern Xinjiang引用本文复制引用
古丽娜孜·居来提,李顺澳,孙帅,李杰,穆光荣,张立祯,马腾飞,帕尔哈提·买买提,王雪姣,张鹏忠,巴特尔·巴克..植棉密度对新疆南疆棉花株型及产量的影响[J].棉花学报,2025,37(3):209-220,12.基金项目
新疆维吾尔自治区"天山英才"培养计划(2023TSYCTD004) （2023TSYCTD004）
新疆维吾尔自治区重大科技专项(2023A02003-6) （2023A02003-6）
新疆维吾尔自治区自然科学基金(2024D01A03) （2024D01A03）
新疆气象科技创新发展基金——多源多模式棉花长势定量化判识与生长气象条件动态评价技术研究(ZD202105) （ZD202105）
