Severidade da ferrugem em genótipos de café arábica em cultivo adensado

Content Provider	Semantic Scholar
Author	Rodrigues, Wagner Nunes Apostolico, Márcio Antônio Tomaz, Marcelo Antônio Colodetti, Tafarel Victor Brinate, Sebastião Vinícius Batista Martins, Lima Deleon Junior, W. C. Jesus Amaral, J. F. T.
Copyright Year	2015
Abstract	This study investigated the severity of leaf rust in genotypes of Coffea arabica L. cultivated with high plant density in the region of Caparao-ES. The experiment was conducted in a competition field, cultivated with high plant density (8,333 plants per hectare), following a randomized block design, with 16 genotypes and four replications. The plants were evaluated during consecutive harvests to study two complete reproductive cycles (from 2010 to 2012). Data were obtained for the phenological stages of flowering, graining, maturation and vegetative rest of each cycle. The severity of leaf rust (Hemileia vastratrix) was evaluated using descriptive scales. It was observed that the genotypes were able to keep a considerable level of resistance to the leaf rust when cultivated with increased density. The genotypes presented variability regarding the severity of the leaf rust, indicating the existence of differential levels of resistance between them. For cultivation with high plant density, the genotypes Katipo, Paraiso MG H419-1, H419-3-37-16-4-1-1, Araponga MG1, Catucai Amarelo 24/137, Catigua MG2, Sacramento MG1, Pau-Brasil MG1, Catigua MG3, Oeiras MG 6851 and Tupi present lower severity for this phytossanitary problem.
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Alternate Webpage(s)	http://www.sbicafe.ufv.br/bitstream/handle/123456789/4118/13_IX-SPCB-2015.pdf?isAllowed=y&sequence=1
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article