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五月寒
释义
五月寒
Encyclopedia
农学
五月寒
释
chilling in May
五月寒
早稻孕穗扬花期间,由于花粉母细胞减数分裂期对环境气象因子十分敏感,日平均气温连续3天以上降到20℃以下,或连续3天最低气温低于15℃,使水稻花器发育不良、花粉败育,空壳率增加,最终影响产量的一种灾害。多出现在小满到芒种农历五月的梅雨季节,又称梅雨寒[注]。
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canonical coordinate system
canonical correlation
canonical correlation analysis
canonical correlation coefficient
canonical correlation coefficients
canonical correlation decomposition
canonical correlation decomposition (CCD)
canonical correlation variable
canonical correlation variables
canonical covering
canonical curve
canonical cut
canonical decomposition
canonical development
canonical deviation
canonical differential equation
canonical dimension
canonical distribution
canonical divergence
canonical divisor
canonical divisor class
canonical domain
canonical element
canonical elements
canonical embedding
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