Evaluation of corn (Zea mays L.) and sorghum (Sorghum bicolor (L.) Moench.) cultivars for silage production in the Alto Vale do Itajaí Region, Santa Catarina State, Brazil

[摘要] - A 3-year study was conducted at EPAGRI - Experimental Station of Ituporanga, SC - Brazil, to select corn and sorghum cultivars suitability for silage production. Thirteen and eight corn and sorghum cultivars were tested and allotted to a complete randomized block experimental design, with three replications. The planting was done in 6m x 6m plot area. The harvest was done when the plant presented a dough stage of maturity. The evaluated characteristics included dry matter yield, crude protein, and total digestible nutrient and ear/whole plant weight ratio. The corn cultivars with the best results for dry matter yield, ears/ panicles composition and quality were: corn - AG-1051, AG-5011, P-3069, XL-330, XL-678, C-805, C-808 and C-901, and sorghum were AG-2002, AG-2005, AG-2006, C-51, P-8118 and BR-700.

[学科分类] 兽医学

[关键词] corn;sorghum;ensiling;dry matter yield;crude protein;total digestible nutrient    IntroduçãoA região do Alto Vale do Itajaí;Santa Catarina;caracteriza-se pela presença de pequenas propriedades localizadas geralmente em solo de relevo declivoso