【摘要】 采用正交组合设计,研究了洪涝中各因素对棉花产量、产量构成因素及其品质的影响。结果表明:(1)淹水天数、淹水深度、淹水生育期对棉花产量有显著影响,各因素对棉花产量的影响主要是减少了总铃数,而且在淹水条件下棉花品质降低。(2)棉花蕾期对淹水最敏感,减产最严重,并且其棉花品质(纤维整齐度、平均纤维长)显著降低。更多还原

【Abstract】 Effects of flooding at different developing stages on cotton yield, yield components and cotton qualities were studied in the experiment designed by orthogonal combination. The results are as follows: (1) The cotton yield was affected significantly by days, depths and developing stages of submergence treatments which could reduce the total number of cotton boll and the cotton qualities. (2) The plants which were flooded at square period were founded to be affected most severely, their yield was reduced maximally and their qualities (the fibre length and the degree of fibre order) were worse than that of their control.更多还原