桃树茎干日变化与生态因子之间的关系研究  

Relationship between Daily Variation of Peach Stem and Ecology Parameters

作　　者：贺军奇[1] 卫新东[1] 汪有科 

机构地区：[1]长安大学,西安710054 [2]国家节水灌溉杨凌工程技术研究中心,陕西杨凌712100

出　　处：《灌溉排水学报》2010年第2期115-118,共4页Journal of Irrigation and Drainage

基　　金：国家863计划项目(2006AA100223)

摘　　要：采用SPSS软件分析了2007年5—10月桃树茎干日变化与生态因子之间的关系,建立了多元回归数学模型,各月份回归系数均在0.9以上。结果表明,不同生长阶段影响茎干日变化的主要因子不同,而且在一日内影响茎干变化的主要因子也在随时间的推移而变化。从整个生长过程来看,桃树茎干日变化与空气温度和空气相对湿度这2个因子之间的关系相对比较密切。研究不同土壤水势条件下桃树茎干日变化与生态因子之间的关系,可为桃树生长环境的调控提供科学依据。The relationship between daily variation of peach stem and ecology parameters during May and October in 2007 was analyzed by SPSS.Meanwhile,multiple regression mathematical model was built and the regression coefficient of each month was greater than 0.9.The results showed that the key factor which influence stem daily variation was different in distinct growth period.Moreover,the key factor was changed as time goes on in the same day.Close relationships between stem daily variation and air temperature,air relative humidity were found during whole growth period.Investigating the relationship between stem daily variation and ecology parameters can provide the scientific foundation for regulation and control of pear tree growing environment.

关 键 词：桃树 茎干日变化 生态因子 

分 类 号：S662.1[农业科学—果树学] S275.5[农业科学—园艺学]