安徽农业科学2025，Vol.53Issue(22)：11-14,4.DOI:10.3969/j.issn.0517-6611.2025.22.003
调环酸钙对干播湿出棉田棉花叶片特性及经济性状的影响
Effects of Prohexadione Calcium on Leaf Characteristics and Economic Traits of Dry-sowing and Wet-emergence Cotton Fields
摘要
Abstract
To explore the regulatory effect and yield increasing potential of prohexadione calcium on dry-sowing and wet-emergence cotton fields,in order to provide scientific basis for high-yield cultivation of cotton in southern Xinjiang.Under the conditions of using dry-sowing and wet-emergence technology in cotton fields,Tahe 2 was used as the experimental material,and DPC was used as the control(CK).Three treat-ment doses of prohexadione calcium were set:T1(5.00 g/hm2+10.00 g/hm2),T2(3.75 g/hm2+7.50 g/hm2),T3(2.50 g/hm2+5.00 g/hm2).Spraying was done to investigate cotton leaf area index(LAI),net photosynthetic rate,yield,and quality indicators.The results showed that pro-hexadione calcium had a regulatory effect on cotton canopy.In the overall LAI,CK was 13.0%,23.0%,and 4.0%higher than T1,T2,and T3 treatments,respectively.There was a highly significant difference between CK and T2 treatments(P＜0.05).In different parts of LAI,the lower LAI of T2 was significantly lower than other treatments.The net photosynthetic rates of T1,T2,and T3 leaves were 12.3%,20.7%,and 4.2%higher than those of CK treatment,respectively.The cotton yield,single boll weight,and lint percentage showed a trend of first increasing and then decreasing with the increase of calcium cyclate concentration;the impact of different treatments on various indicators of cotton fiber quality was not significantly different.The optimal cotton plant type,net photosynthetic rate,yield,single boll weight,and lint percentage were achieved when spraying 5%prohexadione calcium+10%DPC at total usage 15.00 g/hm2+30.00 g/hm2(T2).关键词
棉花/缩节胺/调环酸钙/叶面积指数/净光合速率/产量及纤维品质Key words
Cotton/DPC/Prohexadione calcium/Leaf area index/Net photosynthetic rate/Yield and fiber quality分类
农业科技引用本文复制引用
王鹏军,崔建强,邱森,马丽,孔松,贾梦梦..调环酸钙对干播湿出棉田棉花叶片特性及经济性状的影响[J].安徽农业科学,2025,53(22):11-14,4.基金项目
国家棉花产业技术体系(CARS-15-45) （CARS-15-45）
新疆骨干人才研修项目(兵党组明传[2023]8号). （兵党组明传[2023]8号）
