中国农业气象

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利用费歇尔准则判别荔枝花芽分化期

陈汇林;吴翠玲;   

  1. 海南省气象科学研究所,海南省气象科学研究所 海口570203,海口570203
  • 出版日期:2007-08-10 发布日期:2007-08-10
  • 基金资助:
    海南省气象科技创新基金项目“低温、干旱和光照对荔枝花期预测的量化关系研究”(HN2006ZY08)

Judgement of Period of Flower Bud Differentiation of Litchi (Litch chinensis Sonn.) by Fisher Discriminant Analysis

CHEN Hui-lin, WU Cui-ling(Institute of Meteorological Science of Hainan Province, Haikou 570203, China)   

  • Online:2007-08-10 Published:2007-08-10

摘要: 海南岛荔枝花芽分化的早晚受气温高低和干旱情况的综合影响,为了能够对其实施预报,本文利用费歇尔准则,根据低温条件和干旱指数两因子建立了"妃子笑"荔枝花芽分化期的判别模型,利用此式对待判样品进行试报,准确率为100%。

关键词: 低温, 干旱, “妃子笑”荔枝, 花芽分化期

Abstract: The temperature changes and drought influence on the flower bud differentiation of Litchi (Litch chinensis Sonn.) in Hainan Province. A discriminatory function formula mainly based on low temperature condition and arid index for Litchi variety Feizixiao was established to make judgement of the period of flower bud differentiation. The model passed F-test. The validation showed an accuracy ratio with 100%.

Key words: Low temperature, Low temperature, Drought, Feizixiao litchi, Period of flower bud differentiation