MODELOS MATEMÁTICOS PARA ESTIMATIVA DE ÁREA FOLIAR DE FEIJÃO CAUPI

Abstract

The measures of leaf area for methods no destructive to evaluate the growth certain plants during the whole cycle. The experiment aimed at to establish a mathematical model to esteem the leaf area of cowpea, through measures maximum of length and width of the foliole. The measures were accomplished in collected leaflets of plants cultivated in vases. The real leaf area was certain through a leaf integrator (model LI 3100 LICOR.) and in the choice of the models they were appraised the types: lineal and potential, with measures of the length (L), width (W), product LxW and it adds L+W. The mathematical models obtained by regression were applied to the destructive methods and no destructive, and compared to the dear leaf area and too real. Measures of leaf area of cowpea can be dear starting from equations potential and lineal with good precision. The equations that involve two measured biometrics, for adds and the product, present better adjustment in the potential equation. Measures of leaf area starting from mathematical models, for being a method no destructive, they allow analysis of growth of vegetables with reduced number plants. The leaf area cowpea can be dear for the equations: LA=¿(0.9915(LxW)0.9134) and LA=¿(0.6597(LxW)+2.1745).