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首页> 外文期刊>Journal of Cotton Science >Effect of Twin-Row Planting Pattern and Plant Density on Cotton Growth, Yield, and Fiber Quality
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Effect of Twin-Row Planting Pattern and Plant Density on Cotton Growth, Yield, and Fiber Quality

机译：双行种植方式和种植密度对棉花生长，产量和纤维品质的影响

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摘要

Investigation of new cotton (Gossypium hirsutum) production strategies such as alternative planting patterns in conjunction with plant density is needed to improve yield and profitability. Field experiments were conducted to evaluate the effect of three cotton planting patterns (19 or 38 cm twin rows and 97 cm single rows) at five plant densities (7, 9, 11, 13, and 15 plants m-2) on cotton growth, yield, and fiber quality. Planting pattern did not influence any plant structure or yield variables, seed cotton or lint yield, lint percentage, lint or seed index, and fiber quality. Plant density did not influence the first sympodial branch on the main axis. Monopodial branch number increased with decreasing plant density. The 7 plants m-2 density produced 13.8 sympodia on the main axis and highest first position boll at node 10.5. Total nodes and plant height were greatest for the 7 plants m-2 density. As plant density increased, total bolls per plant decreased. First position boll retention was inversely related to plant densities. Seed cotton and lint yield were greatest for the 11 plants m-2 plant density, but this only differed from the 7 plants m-2 density. Plant density did not influence fiber length, micronaire, strength, or uniformity. Based on these data, seeding cotton in either twin-row planting pattern does not adversely affect cotton growth, yield, or fiber quality. However, cotton plant density had a strong impact on measured variables.
机译：为了提高产量和获利能力，需要研究新的棉花（陆地棉）生产策略，例如替代种植方式以及植物密度。进行了田间试验，以评估三种种植方式（19或38 cm双行和97 cm单行）在5种植物密度（7、9、11、13和15株m-2）对棉花生长的影响，产量和纤维质量。种植方式不影响任何植物结构或产量变量，籽棉或皮棉产量，皮棉百分比，皮棉或种子指数以及纤维质量。植物密度不影响主轴上的第一个症状分支。单脚类的分支数随植物密度的降低而增加。 7株植物的m-2密度在主轴上产生了13.8个症状，在结点10.5处产生了最高的第一位置铃。 7株m-2密度的总节和株高最大。随着植物密度的增加，每株植物的总铃量减少。第一位置棉铃保留与植物密度成反比。 11株m-2植物密度的籽棉和皮棉产量最高，但这仅与7株m-2植物密度不同。植物密度不影响纤维长度，马克隆值，强度或均匀性。根据这些数据，以双行种植方式播种棉花不会对棉花的生长，产量或纤维品质产生不利影响。但是，棉株密度对测量变量有很大的影响。

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