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Position: Home > Articles > ESTIMATION OF BLOOM DAY ON CHINESE HAWTHORN Journal of Agricultural University of Hebei 1988 (4) 59-62

山楂开花期预测

作  者:
刘汝诚;张建芝
关键词:
山楂;开花期
摘  要:
根据九年的花期观察记载和相应的气象资料分析,得知山楂盛花期与花前60天的旬平均气温呈明显负相关。其相关系数 r=-0.8716,经回归及标准误计算,推导出花期预测方程:(?)=63.57-1.1126x
译  名:
ESTIMATION OF BLOOM DAY ON CHINESE HAWTHORN
作  者:
Liu Rucheng Zhang Jianzhi (Dept.of Hort.,Hebei Agri.Univ.,Baoding,China)
关键词:
Crataegus pinnatifida;;Blooming;;period
摘  要:
Based on the observation of bloom data and the analysis of temperat- ure material,it is found that the bloom days of chinese hawthorn are significantly correlated with the sum of every ten-day temperature of 60 days before blooming(r=-0.8716).By the calculation of regression coef- ficient and standard error,the estimation equation of chinese hawthorn bloom day is summarized as follows:(?)=(63.57-1.1126x)±1.28.

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