| 不同行距配置对南疆无膜棉冠层结构及产量的影响 |
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| 引用本文： | 冯洁.不同行距配置对南疆无膜棉冠层结构及产量的影响[J].现代农业科技,2023(8). |
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| 作者姓名： | 冯洁 |
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| 作者单位： | 塔里木大学 |
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| 基金项目： | 国家自然科学基金项目（面上项目，重点项目，重大项目） |
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| 摘 要： | 适宜的行距配置是无膜棉高产的影响因素之一,选取中棉619为材料,设置三种不同行距配置处理进行试验,研究不同行距配置对无膜棉冠层结构及产量的影响,分别为 A: (76+76) cm,一幅三行；B: (76+10+76) cm,一幅四行；C: (10+66+10+66+10) cm,一幅六行。结果表明：行距减小,A、B处理中上部和中部叶面积指数逐渐增加,在B处理中达到最高,下部叶面积指数在C处理下达到峰值；叶倾角在A,B和C处理下整体表现为冠层下部>中部>上部,A和B处理的行距大,行间光照条件优越,冠层跨度随行距增加而减小。C处理产量最高中棉619产量6748.3 kg/hm2,但各项数据均比A和B处理低。综合而言,C处理构建棉花冠层结构各项指标较优,有效促进了无膜棉群体的光合作用,产量最高,适宜南疆无膜棉栽培。
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| 关 键 词： | 无膜棉 行距配置 冠层 产量 |
| 收稿时间： | 2022/6/20 0:00:00 |
| 修稿时间： | 2022/6/20 0:00:00 |
Effects of different row spacing on the structure of film-free canopy in southern XinjiangAnd yield |
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| Abstract: | In order to provide technical basis for optimizing the production of film-free cotton in southern Xinjiang, taking the medium and early maturing variety Zhongmian 619 as the material, three different row spacing configurations were set up for the test, which were a: (76+76) cm, one piece and three rows; B: (76+10+76) cm, one piece in four rows; C: (10+66+10+66+10) cm, one piece of six rows, the effects of different row spacing on canopy structure and yield of film-free cotton were studied. The results showed that with the decrease of row spacing, treatment a and B had the greatest impact on the middle leaf area index. The lower leaf area index of treatment C was significantly higher than that of treatment a and B. the overall leaf inclination showed that the lower part of canopy > middle > upper part. The row spacing of treatment a and B was large, the lighting conditions between rows were superior, and the canopy span decreased with the increase of row spacing. The yield of C treatment was the highest, and the yield of Chinese cotton 619 was 6748.3 kg / hm2, but all data were lower than those of a and B treatment. In general, the indexes of cotton canopy structure constructed by treatment B were better, which effectively promoted the photosynthesis of film-free cotton population, and the yield was higher, which was suitable for the cultivation of film-free cotton in southern Xinjiang. |
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| Keywords: | film free cotton Line spacing configuration Canopy yield |
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