ADAPTABILIDADE E ESTABILIDADE DE CULTIVARES DE SORGO SACARINO VIA AMMI

Abstract

Saccharin sorghum culture is gaining popularity in many countries as an alternative to biofuel production due to its high production of lignocellulosic biomass and fermentable sugars. The number of cultivars in the Brazilian market is still very small, due to the few breeding programs and the low demand for the sugarcane industry, as well as the lack of genotype and environment interaction performance. Studying adaptability and phenotypic stability allows the identification of the effects of G × E interaction at genotype and environment level, showing the relative contribution to the total interaction. The objective of this work was to evaluate saccharin sorghum cultivars for their adaptability and stability in five environments of Brazil for the variables Ethanol, Dry Matter and Fresh Matter of 20 saccharin sorghum cultivars for the safrinha by the AMMI method. In this context, saccharin sorghum is a promising alternative for complementing the supply of raw material for the sugar and alcohol industry, which has a high content of directly fermentable sugars contained in the stem, propagation via seeds, efficiency in the use of inputs and water. and has a short cycle. The characteristics evaluated were production of fresh matter, dry matter and soluble solids content for determination of ethanol production. However, there was specific adaptability for ethanol in environment A4 and fresh matter in environment A1. Phenotypic stability of some cultivars was observed for the variables.