南瓜和瓠瓜叶面积的快速测算方法

Method for measuring and calculating leaf area of pumpkin and gourd.

通过对南瓜（大磨盘）和瓠瓜（长瓠子）叶长、叶宽、叶长×宽与叶面积的一元和多元回归分析并结合实验验证，得出南瓜叶面积的测算公式为ｙ＝０８３８ｘ－０５５８，ｒ＝０９８５和ｙ＝－５９６８＋００５３ｘ１＋０５３０ｘ２＋０８２０ｘ３，Ｒ＝０９９１；瓠瓜的叶面测算公式为ｙ＝０９０３ｘ－２４４４３，ｒ＝０９８３和ｙ＝５７６５６－８５２１ｘ１－１９５１ｘ２＋１１８５ｘ３，Ｒ＝０９８９。两公式都以复回归公式测算最为精确。

According to the study of regression between leaf length, leaf width, length × width and leaf area, it shows that the leaf area formula of pumpkin(Da mo pan)is y=0 838x-0 558,r=0 985 ** (x is leaf length×width and y is area)and y=-5 968+0 053x 1+0 530x 2+0 820x 3,R=0 991 ** (x 1 is leaf length and x 2 is leaf width and x 3 is leaf length × width and y is area);the leaf area formula of gourd (chang huzi) is y=0.903x-24 443,r=0 983 ** (x and y are the same as pumpkin) and y=57 656-8 521x 1-1 951x 2+1 185x 3,R=0 989 ** (x 1,x 2,x 3 and y are the same as pumpkin). They are all demenstrated with experiment.