| 不同毛管间距与株距配置对棉花冠层结构及产量的影响 |
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| 引用本文： | 张玮涛,杨培,段松江,窦巧巧,陈秀玲,张巨松.不同毛管间距与株距配置对棉花冠层结构及产量的影响[J].新疆农业科学,2020,57(8):1385-1392. |
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| 作者姓名： | 张玮涛 杨培 段松江 窦巧巧 陈秀玲 张巨松 |
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| 作者单位： | 新疆农业大学农学院/教育部棉花工程研究中心,乌鲁木齐 830052 |
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| 基金项目： | 国家“十二五”科技支撑计划(2014BAD11B02);自治区重点研发计划(2016B01001-2);国家重点研发计划(2017YFD0101605-05) |
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| 摘 要： | 【目的】 分析毛管间距与种植密度互作对棉花冠层结构及产量的影响,研究毛管间距与种植密度最佳组合,改善群体结构,提高棉花产量。【方法】 采用1膜3行76 cm等行距机采种植模式,选用新陆早61号为材料,裂区设计,主区设毛管间距:1膜2管3行、1膜3管3行,每种毛管配置下设3个株距配置为6、8和10 cm。测定不同生育期株高、叶面积指数(LAI)、叶倾角(MLA)、冠层开度(DIFN)、透光系数(TC)、产量等指标。【结果】 同一株距下,1膜3管处理较1膜2管株高增加1.4~3.6 cm,同一毛管间距下,D8处理较D6处理高7.6~9.3 cm、D10处理较D8处理高1.8~2.3 cm;盛蕾后,I3D8处理LAI与MLA保持了较高值,较D6处理明显增加了单株结铃数、单铃重、衣分,皮棉产量最高。【结论】 盛蕾后,D8处理能较好的调节棉花群体密度与个体发育的矛盾,保持了较高的LAI与MLA,是保证一定种植密度条件下 ,提高单株结铃数、单铃重、衣分的重要原因。
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| 关 键 词： | 机采棉 1膜3行 株距 毛管间距 冠层结构 产量 |
| 收稿时间： | 2019-10-29 |
Effects of Plant Spacing on Canopy Structure and Yield of Cotton under Different Capillary Spacing |
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| ZHANG Weitao,YANG Pei,DUAN Songjiang,DOU Qiaoqiao,CHEN Xiuling,ZHANG Jusong.Effects of Plant Spacing on Canopy Structure and Yield of Cotton under Different Capillary Spacing[J].Xinjiang Agricultural Sciences,2020,57(8):1385-1392. |
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| Authors: | ZHANG Weitao YANG Pei DUAN Songjiang DOU Qiaoqiao CHEN Xiuling ZHANG Jusong |
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| Institution: | Cotton Engineering Research Center, Ministry of Education/College of Agronomy, Xinjiang Agricultural University, Urumqi 830052, China |
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| Abstract: | 【Objective】 To study the effect of interaction between capillary spacing and planting density on cotton canopy structure and yield, and to explore the optimal combination of capillary spacing and planting density in the hope of improving population structure and yield.【Methods】 The experiment adopted the machine planting pattern of one film and three lines with equal spacing of 76 cm. Xinluzao No. 61 was selected as the experimental material. The experiment design was split area. The main area was set with capillary spacing: one film, two pipes and three lines, one film, three pipes and three lines. Each capillary was set with three spacing configurations: 6, 8 and 10 cm. Plant height, LAI, MLA, DIFN, TC and yield were measured at different growth stages.【Results】 Under the same plant distance, the plant height of treatment with one film and three pipes increased by 1.4-3.6 cm compared with that of treatment with one film and two pipes. Under the same capillary spacing, the height of treatment with D8 was 7.6-9.3 cm higher than that of treatment with D6, and that of treatment with D10 was 1.8-2.3 cm higher than that of treatment with D8. After budding, the LAI and MLA of treatment with I3D8 kept a higher value, and the boll number, boll weight and lint percentage of a single plant increased significantly compared with that of treatment with D6, and the highest lint yield was obtained. 【Conclusion】 After full bud treatment, D8 treatment can better regulate the contradiction between population density and individual development of cotton, maintain a high Lai and MLA, which is an important reason to improve boll number, boll weight and lint percentage of a single plant under a certain planting density. |
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| Keywords: | machine-picked cotton one film and three rows plant spacing capillary spacing canopy structure yield |
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