金光杏梅叶面积回归测算研究  

Research on Area Regression Estimation for Jinguang Prunus mume var. bungo

作　　者：张传来[1] 郝峰鸽[1] 宋荷英[1] 李娟[1] 

机构地区：[1]河南科技学院,河南新乡453003

出　　处：《北方园艺》2009年第9期85-87,共3页Northern Horticulture

基　　金：河南省科技攻关资助项目(0424070096);新乡市科技发展计划资助项目(05N07608N045)

摘　　要：以金光杏梅成熟叶片为试材,研究了叶长、叶宽与叶面积的关系。结果表明:叶长、叶宽与叶面积均呈正相关关系。叶长、叶宽与叶面积之间的相关系数分别为0.7084、0.8546,叶长和叶宽与叶面积的复相关系数为0.9868,在0.01水平下均达到了极显著水平。在此基础上建立了叶长(x1)、叶宽(x2)、叶长和叶宽与叶面积(y)之间的回归方程y=61.4140x1-2 480.6、y=28.7600x2-0.8546、y=17.6276x1+41.2594x2-1 078.4906,3个回归方程均可用于测算金光杏梅的叶面积,其中以叶长和叶宽与叶面积的二元回归方程测算结果更为精确。在具体应用中,可根据所要求的精确度进行选择。The relationships between leaf length,leaf width and leaf area were studied in this paper by using the mature leaves of Jinguang P.mume var.bungo.The results showed that there were significantly positive correlations between leaf length and leaf area with a correlation coefficient of 0.7084 at 1% level,leaf width and leaf area with a correlation coefficient of 0.8546.The multiple correlation between leaf length,leaf width and leaf area was 0.9868 and significant at 1% level too.Then the regression models for estimating the Jinguang P.mume var.bungo leaf area were established as y（leaf area）=61.4140x1（leaf length）-2480.6,y=28.7600x2（leaf width）-0.8546,y=17.6276x1＋41.2594x2-1 078.4906.The regression equation of leaf area on leaf length and leaf width was the most precise method of the three for estimating the leaf area.The regression models should be chosen according to accurate requirement in appliance.

关 键 词：金光杏梅 叶长 叶宽 叶面积 回归方程 

分 类 号：Q94-331[生物学—植物学]