MODEL OF PHYSIOLOGICAL INDICES VARIATION IN MAIZE UNDER SILICON INFLUENCE
Abstract
The study analyzed the variation of some physiological indexes of maize leaves, the Lovrin 400 hybrid, under the influence of silicon treatments (0, 0.1 ml l-1, 1.0 ml l-1, 1.5 ml l-1 2.5 ml l-1). Silicon has favorably influenced the dimensional parameters of the leaves (L, w, LA, Chl, Tl, Sw). There were very high and high correlations between Si and L (r=0.935), Si and Tl (r=0.856), and low correlations between Si and Sw (r=0.687), Si and LA (r=0.675), Si and Chl (r=0.528), respectively Si and L (r=0.500). Linear and polynomial equations of order 2 and 3 facilitated the estimation of the physiological indexes studied on the basis of Si concentration, under statistical safety. The LA variation according to L and w was described by grade 3 polynomial models (LA according to L: R2= 0.897, p<<0.001, F=76.089; LA according to w: R2= 0.812, p<<0.001, F=37.384).
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