Effect of Moisture Content at Harvest in the Seed Quality and Germinate of maize ( Zea mays L. )

Abstract

A field experiment was conducted in Autumn season of 2013, to aim determinate the best moisture content for picking the ear of maize. The experiment was applied to compare between the varieties (Taler, Messerra, Al-eizz and Bouhouth 106). This experiment was conducted as split-plot by a randomized complete block design with three replicates. The genotypes were assigned in the main plots, the moisture ratios (26, 28, 30, 32%) were in sub plots. The statistical analysis for the experiment resulted to be significant differences in all studied traits by genotypes in the experiment. Taller was surpassed in the ear weight (260.7g) , trash materials ratio threshing (14.37%), oil ratio (9.40%) , embryo to the seed ratio (65.25 %) and field growing ratio (94.8%) . Bouhouth 106 was surpassed in 300 grains weight (291g) and protein ratio (10.42%). Al-eizz was surpassed in the starch ratio (32.04%).The results showed significant difference for moisture content for ears at the harvest in most studied traits. The lowest moisture content (26%) gave highest ratio of not broken (good) seeds (92.78%) and highest ratio of trash materials (7.22%) and gave heights oil ratio (7.08%), protein ratio (9.22%) and filed growing ratio (92.7%). The harvested ears were gave at higher moisture content 32% gave highest bulk density (808.1 kg.m-3) and highest trash materials ratio (7.22%), and it gave lowest good broken seeds after threshing mechanically (85.09%), oil ratio (6.35%), protein ratio (9.22%) and filed growing ratio (89.4%).