Abstract
This study aimed to evaluate the agronomic performance of 30 sorghum genotypes planted in two seasons. In the agronomic performance evaluation, 15 superior genotypes were selected and submitted to nutritive value and nutrient accumulations evaluations. The genotypes were planted on 20 December 2017 and 5 February 2018 and submitted to three and two cuts. Agronomic and nutritional characteristics were evaluated in all cuts and considered as the average values per season. The hybrids forage accumulation 6,941 kg/ha in the first and 3,370 kg/ha in the second planting season. The plant leaf proportion varied from 41.1 to 55.9% among all hybrids in the two seasons. The whole plant crude protein contents were 111 and 121 g/kg DM in the first and second planting seasons. The in vitro dry matter digestibility varied from 579 to 679 g/kg DM among all hybrids. The agronomic and nutritional characteristics were better in first compared to second planting due to better climatic conditions. The hybrids 16F26008, 16F26014 and 16F26007 had superior characteristics. The females (ATF54A*{ATF54B*[(Tx623B*ATF54B)6-1]}-263-C-1)A and (ATF54A*{ATF54B*[((Tx623B*ATF54B)6-1]}-207-C-1)A and the males TX2784 and TX2785 produced superior hybrids.
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