玉米子粒自然脱水速率的分析

Analysis of Kernel Naturally Dry-Down Rate of Corn Hybrids

对 2 3个不同熟期玉米杂交组合生理成熟后 10d内子粒自然脱水速率进行了分析。结果表明 ,生理成熟时子粒含水量在 31 96 %～ 4 3 6 0 % ,同一熟期的材料子粒脱水速率有显著差异 ,变幅在 0 18%～ 1 80 %。子粒脱水速率大小与生理成熟早晚无明显相关 。

Kernel naturally dry-down rate of 23 corn hybrids with different maturity period in ten days after physiological maturity period were analyzed in this paper.The results showed that the kernel water contents were between 31.96% and 43.60% during physiological maturity period.The differences of kernel naturally dry-down rate in corm hybrids were significant,whose variations were between 0.18% and 1.80%.The correlation between kernel naturally dry-down rate and physiological maturity stage were insignificant.The rates were affected mainly by kernel water contents in physiological maturity stage of corn hybrids.