Seleção de progênies de cafeeiro derivadas de Catuaí com Icatu e Híbrido de Timor

Abstract

The coffee crop in Brazil consists basically by cultivars from the group Catuaí and Mundo Novo, both are likely the main disease of the culture, leaf rust caused by fung Hemileia vastatrix Berk & Br. The development of cultivars resistant or tolerant to pests and diseases has an important role in increasing productivity, decrease production costs and ensure more sustainable production system. The objective of this research was select progenies from the cross of cultivars Yellow Catuaí and Red Catuaí with Icatu and descendants of Timor Hybrid in order to select materials productive and with good agronomic characteristics. Experiments were carried, out in three locations of the state of Minas Gerais, representing the two major coffee producing regions: Lavras, Campos Altos and Patrocínio. Twenty progenies and two cultivars (witnesses), were evaluated developed by Genetic Improvement Program of Coffee plant in Minas Gerais, coordinated by EPAMIG. The experimental design was a randomized blocks, with three replicates and 10 plants per plot. There were analyzed the characteristics productivity in beans yield in bags.ha-1, yield in liters, grain retained in sieve "17 above", grain type moca, chocho fruit, green fruits and cherry fruits percentage. The results revealed that there is great variability among the progenies and the coffee regions, guiding the planning and improvement strategies, in the recommendation of future cultivars for different regions. The progenies H516-2-1-1-18 MS cv 02, H516-2-1-1-18 MS cv 03, H516-2-1-1-18 MS cv 05, H419-3-4-5-2 MS cv 02 e H419-3-4-5-2 MS cv 03 stood out over others and should be used in future work.