Estimativa da área foliar de Milho Zea mays variedade PAN 53: estudo do caso de distrito de Vilankulo na Empresa JAM

Abstract

The use of destructive methods for the estimation of leaf area in maize is a practice employed only when the studies involve methods of direct estimation of leaf area, such as leaf area estimation methods, as is the case of LICOR-3100, digital photographs, scanner and other direct estimation of leaf area. This research work had as central objective of develop linear models and evaluate the performance of each for estimation of leaf area of To this end, the present research work was implemented in the production field of the in the production campus of the company JAM. We developed models for estimating the leaf area PAN 53 hybrid through the dimensions of C (length) and L (width) of the leaf related to the leaf area determined by imagej. The best model for estimation of individual leaf area resulted from linear regressions AF= 0.624 + 0.74CL using dependent variable AF dependent variable versus CxL as an independent variable and for the estimation of the total leaf area total leaf area of the plant with a reference leaf resulted from linear regressions AF = - - 1681.838 +381.838 +381.7CL as an independent variable. 1681.838 +381.991N +0.003C 2 *L 2 +2.25h where AF is the response variable versus N, C 2 *L 2 and h as independent variables. The correction factor of maize variety PAN 53 is 0.74 based on this present research work. (TRADUÇAO NOSSA)