DESENVOLVIMENTO E PRODUTIVIDADE DO MILHO VERDE AG1051 SOB DIFERENTES CULTIVOS ANTECESSORES

Abstract

Corn is one of the oldest crops. Recent cultivation requires attention to soil fertility in order to obtain good productivity. Thus, the objective of the present work was to evaluate the performance of a double hybrid of green corn AG1051 in two areas with different cultivation histories. Evaluations were conducted in randomized blocks with eleven replications of the following variables: plant height, stem diameter, spike insertion, number of straws, ear length and ear diameter, cob diameter, row number of grains per spike, (with and without straw), number of grains per row, number of grains per spike ,weight of the mass of five ears and the productivity of ears, in both treatments. The treatments were: one with a history of cultivation of soybeans, corn and sorghum since 2001 and another with cultivation started through the present work. The cultivated area for years presented the higher values for plant height, stalk diameter and spike insertion. However, the other variables were not statistically different. In this way, it is possible to affirm that the hybrid analyzed is rustic and adapts well in recently cultivated areas.