杂交棉主要农艺性状与产量品质的相关分析(英文)

Correlation Analysis on Main Agronomic Traits and Yield and Quality of Hybrid Cotton

[目的]对杂交棉主要农艺性状与产量品质进行相关分析。[方法]对13个杂交抗虫棉的生育期、主要农艺性状、产量构成因素及产量品质的差异进行比较以及主要农艺性状、产量构成因素与产量品质进行相关性分析。[结果]各参试品种的生育期在123d左右,在整个生育期生长势较强;皮棉产量与第一果枝节位、株高、株果枝数、株铃数、总铃数和籽棉产量都呈极显著正相关,第一果枝节位与马克隆值呈显著正相关;科杂1号和春杂棉1号马克隆值最优,均为4.5;各品种的比强度在27～30cN/tex之间,差异较大;品种间皮棉产量间的差异达极显著水平。[结论]该研究为杂交棉的优质高产栽培提供了理论参考。

ObjectiveThis study aimed to analyze the correlations of the main agronomic traits, yield and quality of hybrid cotton cultivars. MethodThe growth period, main agronomic traits, yield components, yield and quality of 13 hybrid cotton cultivars were compared, and the correlations of their main agronomic traits, yield components, yield and quality were analyzed. ResultThe growth period of the 13 cultivars was about 123 d, and all of them presented strong growth potential throughout the growth period. The ginned cotton yield shared an extremely significant positive correlation with the first fruiting branch position, plant height, number of fruiting branches, number of bolls per plant, number of bolls per hectare and seed cotton yield; the first fruiting branch position and micronaire value shared a significant positive correlation. Keza No.1 and Chunzamian No.1 had the lowest micronaire value, 4.5. The specific strength of all the cotton cultivars ranged from 27 cN/tex to 30 cN/tex, presenting significant difference. In addition, there was extremely significant difference in the ginned cotton yield among all the cotton cultivars. ConclusionThe study provides theoretical reference for the cultivation of high-yield hybrid cotton.