| 环境因子对苹果树水势的影响及其日变化规律 |
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| 引用本文： | 白志明,张玉峰,白瑞琴.环境因子对苹果树水势的影响及其日变化规律[J].山西农业大学学报(自然科学版),2001,21(1):30-33. |
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| 作者姓名： | 白志明 张玉峰 白瑞琴 |
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| 作者单位： | 山西农业大学,动物科技学院,山西,太谷,030801 |
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| 摘 要： | 在露地条件下对不同嫁接组合红星和金冠苹果树枝条、叶片及果实水势测试并应用灰色系统方法建立苹果树水势与环境因子日变化规律的GM (0 ,4)模型 ,结果表明 :苹果树各器官水势日变化均为早晨较高 ,午间或午后达最低值 ,傍晚回升到高于早晨的水平 ;温度、相对湿度和辐射照度是苹果树各器官水势日变化的主要影响因子 ,且不同嫁接组合苹果树各器官水势日变化的一次累加生成时间序列与温度、相对湿度及辐射照度日变化的一次累加生成时间序列呈线性函数关系
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| 关 键 词： | 环境因子 苹果树 水势 时间序列 |
| 文章编号： | 1000-162X(2001)01-0030-04 |
| 修稿时间： | 2000年4月20日 |
The Effect of Environmental Factors on Water Potential of Apple Trees and its Diurnal Change Laws |
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| BAI Zhi\|ming et al..The Effect of Environmental Factors on Water Potential of Apple Trees and its Diurnal Change Laws[J].Journal of Shanxi Agricultural University,2001,21(1):30-33. |
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| Authors: | BAI Zhi\|ming |
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| Abstract: | Branch,leaf and fruit water potential of different grafting Starking and Golden Delicious apple trees growing in field were measured,and the GM(0,4) model of diurnal change laws of apple tree water potential with environmental factors was established by means of grey system theory.The results indicate:diurnal changes of apple tree water potential is higher in the early morning and comes down to the lowest at noon and goes up again to the highest level in the evening.Among the environmental factors that affect the water potential of apple trees during the day.temperature,relative humidity and irradiance are primary factors.The progressive resultant time sequence of water potential in different organs of apple trees and the that of temperature,relative humidity and irradiance have the relations of linear function. |
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| Keywords: | Environmental factors Apple trees Water potential Time sequence |
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