甲哌鎓复配芸苔素内酯对夏播短季栽培棉花生长发育和产量的影响
Effects of Combining Mepiquat with Brassinolide on Growth, Development, and Yield of Summer-Sown Short-Season Cotton
DOI: 10.12677/hjas.2026.162023, PDF,   
作者: 荣志凌*, 戴海涛, 程威威, 谢章书, 张 宁, 屠小菊, 刘爱玉#：湖南农业大学农学院，湖南 长沙；湖南农业大学棉花研究所，湖南 长沙
关键词: 棉花；夏播短季栽培；甲哌鎓；芸苔素内酯；化学调控；产量；Cotton； Summer-Sown Short-Season Cultivation； Mepiquat； Brassinolide； Chemical Regulation； Yield
摘要: 目的：分析不同甲哌鎓施用剂量与芸苔素内酯进行复配对棉花生长发育及产量的影响，以期为长江流域夏播短季栽培棉花筛选出最优的甲哌鎓施用剂量及复配组合，并为长江流域棉花夏播短季栽培提供理论指导。方法：以杂交棉ZHM19为试验材料，设置甲哌鎓用量为150、210、270 g/hm2三个用量梯度的D1、D2和D3处理以及在甲哌鎓三个用量梯度中分别复配21 g/hm2芸苔素内酯的D1B、D2B和D3B处理，研究复配处理对棉花生长发育和产量的影响。结果：甲哌鎓复配芸苔素的处理D1B/D2B/D3B较单施甲哌鎓的处理D1/D2/D3，对棉花株高有更强的抑制作用，同时对棉花茎粗和叶片SPAD值有一定的促进作用，复配有利于塑造棉花合理的株型结构，提高植株叶绿素的相对含量，单株铃数在中等浓度复配中表现最高，为16.09个，单铃重则表现为在高浓度复配中最高，为5.76 g。结论：籽棉产量以D2B (210 g/hm2 DPC + 21 g/hm2 BR)处理最高，达到7191.16 kg/hm2，以D1 (150 g/hm2 DPC)处理产量最低，仅为5364.63 kg/hm2。
Abstract: Objective: To analyze the effects of different application rates of mepiquat combined with brassinolide on cotton growth, development, and yield. This study aims to identify the optimal mepiquat application rate and combination for summer-sown short-season cotton cultivation in the Yangtze River Basin, providing theoretical guidance for cotton production in this region. Methods: Hybrid cotton ZHM19 was used as experimental material. Three methiocarb application rates (150, 210, and 270 g/hm2) were established as treatments D1, D2 and D3. Additionally, three methiocarb application rates were combined with 21 g/hm2 of brassinolide in each treatment. 270 g/hm2 D1, D2 and D3, and supplemented with 21 g/hm2 brassinolide in each of the three mepiquat concentration treatments (D1B, D2B and D3B). The effects of these combined treatments on cotton growth, development, and yield were investigated. Results: Compared to the D1/D2/D3 treatments with methiocarb alone, the D1B/D2B/D3B treatments combining methiocarb with brassinolide exhibited stronger suppression of cotton plant height. Simultaneously, they promoted stem thickness and leaf SPAD values. The combination treatment helped shape a reasonable plant architecture and increased the relative chlorophyll content. The number of bolls per plant peaked at 16.09 under the medium-concentration combination treatment, while the weight per boll reached its highest at 5.76 g under the high-concentration combination treatment. Conclusion: Lint yield was highest in the D2B treatment (210 g/hm2 DPC + 21 g/hm2 BR), reaching 7191.16 kg/hm2, while the lowest yield was observed in the D1 treatment (150 g/hm2 DPC), at only 5364.63 kg/hm2.
文章引用：荣志凌, 戴海涛, 程威威, 谢章书, 张宁, 屠小菊, 刘爱玉. 甲哌鎓复配芸苔素内酯对夏播短季栽培棉花生长发育和产量的影响[J]. 农业科学, 2026, 16(2): 162-170. https://doi.org/10.12677/hjas.2026.162023

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