Evaluation of maize cultivars as to yield of green and dry grains

Abstract

Nine maize cultivars, represented by seven double cross (AG-162, AG-302-A, AG-403-B, AG-5201, AG-303, AG-405 and C-525), one three-way cross (C-505), and one open-pollinated variety (Centralmex, used as control) were evaluated both for "green corn" (grains with 70 or 80% humidity) and ordinary grain yield (GY) (dry grains). The green corn yield was evaluated by total number (TNE) and total weight (TWE) of ears, number (NEHM) and weight (WEHM) of marketable ears with husk and number (NEM) and weight (WEM) of marketable ears without husk. The cultivars were evaluated during three semesters in Mossoró, RN, Brazil. A randomized block design with five replications was used. There were not significant differences among cultivars as TNE, NEHM and NEM. The semesters x cultivars interaction was significant for TWE, WEHM, WEN and GY. In general, for TNE and NEHM, the AG-5201 and AG-303 cultivars were the most productives. The C-505 cultivar was the best as WEM. The best cultivars for GY were AG-302-A and C-505.