大久保桃叶面积回归测算方法研究

以大久保成熟叶片为试材,研究了叶长（x1）、叶宽（x2）、叶长×叶宽与叶面积（LA,y）的关系。结果表明,叶长、叶宽、叶长×叶宽与LA均呈正相关关系,相关系数分别为0.9203、0.9297、0.9764;叶长和叶宽、叶长和叶长×叶宽、叶宽和叶长×叶宽与LA的复相关系数分别为0.9866、0.9884、0.9884,差异均达到了极显著水平。在此基础上建立了叶长与LA、叶宽与LA、叶长×叶宽与LA 3个简单线性回归方程以及叶长和叶宽与LA、叶长和叶长×叶宽与LA、叶宽和叶长×叶宽与LA 3个二元回归方程。6个回归方程均可作为测算大久保桃的叶面积。其中,以叶长和叶长×叶宽与LA、叶宽和叶长×叶宽与...

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Bibliographic Details
Published in西南农业学报 Vol. 25; no. 2; pp. 635 - 638
Main Author 张传来 周瑞金 宋秀丽
Format Journal Article
LanguageChinese
Published 河南科技学院,河南新乡,453003 2012
Subjects
叶宽
叶长
叶面积
回归方程
大久保
回归方程
叶长
叶宽
叶面积
大久保
Online AccessGet full text
ISSN1001-4829
DOI10.3969/j.issn.1001-4829.2012.02.057

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Summary:以大久保成熟叶片为试材,研究了叶长（x1）、叶宽（x2）、叶长×叶宽与叶面积（LA,y）的关系。结果表明,叶长、叶宽、叶长×叶宽与LA均呈正相关关系,相关系数分别为0.9203、0.9297、0.9764;叶长和叶宽、叶长和叶长×叶宽、叶宽和叶长×叶宽与LA的复相关系数分别为0.9866、0.9884、0.9884,差异均达到了极显著水平。在此基础上建立了叶长与LA、叶宽与LA、叶长×叶宽与LA 3个简单线性回归方程以及叶长和叶宽与LA、叶长和叶长×叶宽与LA、叶宽和叶长×叶宽与LA 3个二元回归方程。6个回归方程均可作为测算大久保桃的叶面积。其中,以叶长和叶长×叶宽与LA、叶宽和叶长×叶宽与LA的二元回归方程：Y=490.6048-4.9315x1＋0.6816x1x2、Y=-213.244＋18.6115x2＋0.5527x1x2测算结果更为精确。在具体应用中,可根据所要求的精确度和测算时的工作量进行选择。
Bibliography:51-1213/S
Dajiubao＇ peach; Leaf length; Leaf width; Leaf area; Regression equation
Taking ＇Dajiubao＇ peach leaf as tested materials,the relation of leaf length（x1）,leaf width（x2） and leaf length × leaf width with leaf area（LA,y） was studied.The results showed that there was a significantly positive correlation between leaf area and leaf length,leaf width and leaf length × leaf width, and the correlation coefficient was 0.9203,0.9297 and 0.9764,respectively;the multiple correlation coefficient of leaf length added leaf width,leaf length added leaf length × leaf width,leaf width added leaf length × leaf width with leaf area was 0.9866,0.9884 and 0.9884,respectively,and the difference was extremely significant.On the base of these analysis results,the simple linearity regression equation of leaf length,leaf width and leaf length × leaf width with leaf area was established.At the same time,the binary regression equation was established for leaf length added leaf width with leaf area,leaf length added leaf length ×
ISSN:1001-4829
DOI:10.3969/j.issn.1001-4829.2012.02.057