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对新陆早 8号棉花品种不同产量 (1 80 0 ,2 0 2 5 ,2 2 50kg·hm-2 )水平下的冠层结构及其与干物质生产和分配、叶面积载荷量的关系进行了研究。结果表明 :皮棉产量在 2 0 2 5～2 2 50kg·hm-2 时 ,必须保持适宜的冠层结构 ,这样有利于干物质生产与分配。其中果节量为547× 1 0 4～ 564× 1 0 4个·hm-2 ,总铃数 1 0 7.8× 1 0 4～ 1 2 3 .8× 1 0 4个·hm-2 ,最大 LAI在 3 .2 0～3.70 ,成熟期 (9月初 )LAI保持在 2 .2 0～ 2 .80 ,每平方米叶面积载铃量在 2 9～ 33个
The relationship between canopy structure and dry matter production and distribution and leaf area load under different production (180, 2052 and 2250 kg · hm-2) of Xinluzao 8 # Study. The results showed that when the lint yield was from 2025 to 2250kg · hm-2, the proper canopy structure had to be maintained, which was good for the production and distribution of dry matter. The fruit number was 547 × 104 ~ 564 × 104 hm-2, and the total number of bolls was 1 0 7.8 × 104 ~ 1 2 3 .8 × 104 hm-2. The maximum LAI At 320 ~ 3.70, the LAI at maturity (early September) was between 2.02 and 2.80, and the leaf area per square meter was between 29 and 33