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本文主要分析了玉米收获前 (吐丝后 6 0d)子粒水分与品种生育日数、百粒重、轴粗、穗粗等性状的相关性及脱水速度与粒型的关系。结果表明 :影响子粒水分相关程度的顺序是生育日数 >轴粗 >百粒重 >穗粗。齿型品种脱水速度快于硬粒型品种。因此在解决“水苞米”问题时 ,首要考虑的是选用合适熟期的品种 ;其次熟期相近的品种 ,要选穗轴较细、粒重偏低的品种 ,这样有利于降低子粒水分 ,提高品质。
In this paper, the correlation between the moisture content of grain and the number of breeding days, the weight of 100 grains, the diameter of the shaft and the diameter of the ear before harvest (60 days after silking) and the relationship between the rate of dehydration and the grain size were analyzed. The results showed that the order of influencing grain moisture was the number of days of birth> axis coarse> 100 kernel weight> spike coarse. Tooth type dehydration faster than the hard-type varieties. Therefore, in solving the problem of “water corn”, the most important consideration is the selection of suitable maturity varieties; secondly, the maturity of similar varieties, to select the cob thin, low weight varieties, which will help to reduce the grain moisture, improve quality.