Leaf area prediction model for some Kiwifruit (Actinidia chinensis Planch.) cultivars

Abstract

A total of 1000 leaves were selected randomly from five different Kiwifruit (Bruno, Hayward seedling, Matua, Tomuri and Hayward) plants that are widely grown in Rize-Turkey, were used in this research. Their lamina leaf width, length and area of the leaves were measured. The actual leaf areas were measured by PLACOM Digital Planimeter and multiple regression analysis with The Excell 7.0 was performed. The leaf area model developed for kiwifmit was LA = 124.56 - (18.3xL) - (14.68xC) + (0.416xL2) + [1.26x(LxW)] - [0.011x(L 2xWxC)] + [0.23x(LxWxC)] - 0.18xW2) where LA is leaf area (cm2), L is leaf length (cm), W is leaf width (cm), C is Kiwifruit cultivars (1 Bruno, 2 Seedling, 3 Matua, 4 Tomuri, 5 Hayward). R2 value (0.97) and standard error were found to be significant at the p<0.001 level. © 2007 Academic Journals Inc.