Desempenho produtivo e valor nutricional de cultivares de trigo e triticale em diferentes épocas de colheita no semiárido mineiro

Abstract

The nutritional value and productivity are factors that can impact the choice of forage in a production system. The development and growth provide changes in the morphological and physiological characteristics of the cultivated species where the stage of harvest can be decisive in recommending the forage. Thus, this study aimed to evaluate the productivity and nutritional value of dual-purpose wheat (Triticum aestivum) and Triticale (X. Triticosecale Wittmack) cultivars at different stages of plant development in the semiarid region of the State of Minas Gerais. Eight wheat cultivars and two triticale cultivars harvested at the Emborrachamento, Farinaceous grains and physiological maturity stages were used. The experimental design adopted was randomized blocks with three replications in a 10 x 3 factorial scheme, with 10 cultivars and 3 development stages for plant harvesting. The main characteristics of agronomic interest and the nutritional value of the cultivars were evaluated. The research demonstrated the potential of growing wheat and triticale for forage in the semiarid region of Minas Gerais. The harvest time for most of the evaluated cultivars is important to determine the productivity and quality of the harvested forage. The highest productivity of digestible dry matter was observed with cultivars harvested at the farinaceous grain stage. Triticale IPR 111 and Wheat IPR PANATY have greater productive potential and better nutritional quality for use as forage.