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Revista mexicana de ciencias agrícolas
Print version ISSN 2007-0934
Abstract
VILLASENOR MIR, Héctor Eduardo et al. Chemical control of diseases: an alternative for rainfall wheat production in Tlaxcala. Rev. Mex. Cienc. Agríc [online]. 2012, vol.3, n.3, pp.595-600. ISSN 2007-0934.
With the aim to evaluate convenience of applying fungicide to improve productivity of flour wheat and white wheat when there is incidence of yellow rust and complex of foliar diseases under rainfall conditions, varieties Gema C2004 and Tlaxcala F2000 were settled in three localities from state of Tlaxcala. Analyzed variables were days to flowering and to maturity, plant height, grain yield, incidence of yellow rust in foliage and in ear and incidence and severity of foliar diseases. In the three localities the flour wheat Tlaxcala F2000 variety overcame from 9% to 40% in grain yield to white wheat Gema C2004 variety. The diseases together caused decrease in yield up to 26%. Sportak® was the fungicide associated with better disease control, which was seen in greater grain yield with average increases of 26.5 and 29.4% when yellow rust and foliar diseases affected, respectively. The results denote fungicide application to reduce decreases in rainfall wheat production is convenient.
Keywords : Triticum aestivum; Triticum durum; Puccinia striiformis f. sp. tritici; foliar diseases; fungicides.