种植密度对棉花生育动态、产量和品质的影响

doi:10.7668/hbnxb.2014.S1.030

摘要/Abstract

摘要： 旨在为冀中南棉区棉花高产栽培群体调控和品种审定设置合理的品比试验提供理论依据。以衡棉4号、冀棉958和快育66为供试材料,于2012-2013年在冀中南棉区(河北深州)设置密度试验(37 500,52 500,67 500 株/hm²),研究种植密度对陆地棉株高、果枝数、叶面积指数和产量品质性状的影响,结果表明:随密度的增加,株高和叶面积指数增高、果枝数减少;产量构成因子单铃重和衣分降低,不同时期单株蕾花铃数也降低。群体产量随密度增加而提高,52 500~67 500株/hm²是冀中南地区棉花适宜种植的密度范围,可作为高产栽培群体调控和区域品比试验安排的参考密度。密度对棉铃纤维品质存在一定影响,随密度的增加,棉纤维上半部平均长度呈增加的趋势,马克隆值呈降低的趋势。

关键词: 棉花, 种植密度, 生育动态, 产量, 品质

Abstract: The purpose of this study was to provide theoretical basis for population control technique and finding the suitable planting density of variety comparison in this area.With Hengmian 4,Jimian 958 and Kuaiyu 66 as tested materials,we designed a density experiment in order to study the influence of planting density on plant height,fruit branch,leaf area index,yield and quality characters of upland cotton in mid-south region of Hebei in 2012 and 2013.The results were as follows:Plant height and leaf area index increased as population density increased.Number of fruit branch decreased.Yield components single boll weight and lint percentage decreased as population density increased.Bud number,flower number and boll number per plant in different period also decreased with population density.Production improved as population density increased.52 500 plants/ha to 67 500 plants/ha density was the suitable planting density range in mid-south region of Hebei and can be used as reference density of population control and variety comparison experiment.Density had certain influence on fiber quality.50% staple length increased and micronaire value decreased as population density increased.

Key words: Upland cotton, Planting density, Development, Yield, Fiber quality

中图分类号:

S562.01

戴茂华, 吴振良, 刘丽英, 马俊永. 种植密度对棉花生育动态、产量和品质的影响[J]. 华北农学报, 2014, 29(S1): 146-154. doi: 10.7668/hbnxb.2014.S1.030.

DAI Mao-hua, WU Zhen-liang, LIU Li-ying, MA Jun-yong. Influence of Planting Density on Development, Yield and Quality of Upland Cotton[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2014, 29(S1): 146-154. doi: 10.7668/hbnxb.2014.S1.030.

http://www.hbnxb.net/CN/Y2014/V29/IS1/146

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