中文摘要：

以＂美登＂、＂北陆＂、＂蓝丰＂3个蓝莓品种叶片为试材,研究了不同品种叶片长（x1）、叶片宽（x2）、叶片重（x3）、叶片长×叶片宽与叶面积（y）的关系,并建立了一元和二元回归方程。结果表明：3个蓝莓品种的叶片长、叶片宽、叶片重、叶片长×叶片宽与叶面积均呈正相关关系,并建立了一元回归方程;同时建立了叶片长和叶片宽、叶片长和叶片长×叶片宽、叶片宽和叶片长×叶片宽与叶面积关系的二元拟合方程;从建立的3个蓝莓品种叶面积回归方程来看,叶面积回归方程的复相关系数均呈极显著水平,在生产中均可作为测算3个蓝莓品种叶面积的回归方程。

英文摘要：

Taking the leaves of‘Blomidon＇,‘Northland＇and ‘Bluecrop＇blueberry as test materials,the relationship between leaf area（leaf length×leaf width）（y）and the growth indexes include leaf length（x1）,leaf width（x2）,leaf weight（x3）were studied.The results showed that length,leaf width,leaf weight,leaf length×leaf width and leaf area of3 blueberry varieties were positively correlated.A simple regression equation,and fitting equation between leaf area（y）and leaf length（x1）,leaf area（y）and leaf width（x2）,leaf area（y）and leaf weight（x3）,leaf area（y）and leaf length×leaf width were established.After data analysis,the correlation coefficient and multiple correlation coefficients were at very significant level,thus the leaf area regression equation could be used to estimate blueberry leaf area.