G/(R+G+B) and G-R are the best parameter of estimating cucumber leaf dry basis moisture content, and H/I and G/(R+G+B) are the best parameters of estimating cucumber leaf dry matter to leaf area.

• 运用逐步回归分析技术找出了G/(R+G+B)和G-R可以作为叶片干基含水量估算的主要颜色特征参数；G/(R+G+B)和H/I是叶片比叶重估算的主要颜色特征参数。