Production and postharvest for green corn cultivars evaluation in the conventional and organic system

Abstract

The corn crop for the production of green corn, has attracted the interest of small producers to present market value bigger than only corn grain and demand throughout the year. If it is grown organically it will reach larger values, becoming an important alternative for family farming. Due to the low availability of specific cultivars for the production of green corn and the lack of information about their organic condition, the present work aims to evaluate the behavior of maize cultivars to be harvested green in the organic and conventional production systems. The work will be developed in the Regional Center of Andradina, which is a city located in the Far West of São Paulo State, in Brazil for two growing seasons. The experiment design will happen in blocks with 4 replicates and 14 treatments consisting of the combination of 7 cultivars of corn and 2 systems of organic and conventional crops. It will be evaluated agronomic traits: days to flowering male and female cycle, heat accumulation, plant height and the first spike, weight of ears husked and husked, mass of fresh straw, green mass of plants, total number of spikes, number of marketable ears, diameter and average length of husked ear. For postharvest, the husked ear will be packed and stored at room temperature and 7 ± 1 º C in the UPD - Araçatuba. The experiment is completely randomized with 03 replicates consisting of 03 ears each repetition. It will be evaluated for: weight loss, total soluble sugars and reducing sugars, starch, visual quality, presence of fermented odor. The values obtained will be submitted to analysis of variance and means compared by Tukey test. (AU)