The correlation of machine-picked cotton defoliant in different gossypium hirsutum varieties

HIGHLIGHTS

SUMMARY

    Although blind introduction leads to high yield, the germplasm resources themselves are not sensitive to defoliation agent, with low defoliation rate, poor quality, high miscellaneous rate and low net recovery rate, and the number of ginning cleaning process also increases greatly, which damages the fiber quality of cotton and greatly reduces the grade and quality of cotton. In this study, chlorophyll value has a very significant negative correlation with defoliation rate, and a significant positive correlation with hanging rate, probably because high chlorophyll SPAD value and high photosynthetic rate will affect the process of . . .

     

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