AVALIAÇÃO DE HÍBRIDOS DE MILHO TRANSGÊNICOS E CONVENCIONAIS PARA SILAGEM

Abstract

The experiment was conducted at the Universidade Estadual do Centro Oeste (UNICENTRO) the objective was to evaluate the biomass production, the physical composition of the corn plant and its substance content in the dry phase of it and the structural components of transgenic corn hybrids and conventional assess chemistry, qualitative differences hybrid silage transgenic corn and silage conventional corn (SYN-7205, DKB-240, BG-7060 e BX-898) and transgenic (SYN-7205 TL, DKB-240 Y, BG-7060 H e BX-898 Y). Their wasnot significant interaction (P> 0.05) between hybrids and transgenic (presence or absence) and no significant interaction (P> 0.05) between transgenic and valuation date for the parameters related to the production of biomass and dried crops. A significant interaction (P <0.05) between the hybrids and the valuation date for the production of dry biomass and biomass dry grain. In general, the dry matter in the grain filling R1 (86 DAE) R5 physiological maturity (121 DAE), regardless of maize hybrids evaluated showed higher rates of increase in dry matter per day at 0.1253% stem, the leaves of 0.6652%, 0.5447% of bracts more spikes, grains 1.1883% and 0.4855% in the whole plant, regardless of biotechnology.. With respect to chemical analysis of corn silage, general average, there was no difference (P> 0.05) between the parameters analyzed in the comparison between conventional and transgenic hybrids. Based on the results obtained in this study, it is evident from the constant need for individual evaluation of each corn hybrid market adequate to promote the recommendation for silage.