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Title: Características agronômicas de progênies de cafeeiro em área infestada por Meloidogyne paranaensis
Other Titles: Agronomic characteristics of coffee progenies grown in area infested by Meloidogyne paranaensis
Keywords: Cafeicultura
Ciências Agrárias
Ciências Biológicas
Amphillo MR
Nematoide das galhas
Melhoramento genético
Nematode galls
Coffee breeding
Issue Date: 2015
Citation: PASQUALOTTO, A. T. et al. Características agronômicas de progênies de cafeeiro em área infestada por Meloidogyne paranaensis. Coffee Science, Lavras, v. 10, n. 3, p. 392 - 401, jul./set. 2015.
Abstract: The use of genetic materials Coffea sp. resistance to M. paranaensis with good agronomic performance can able to maintain coffee production activities in infested areas. The aim of this research was characterize the agronomic performance of coffee progenies and the reaction to M. paranaensis. The trial was carried out at Guaiçara farm located in the city of Piumhi- MG in February 2012. 21 progenies of F5 generation derived from the crossing of Catuaí Vermelho X Amphilo MR and three commercial cultivars used as control (Catuaí IAC 62, Mundo Novo 379-19 and IPR 100) were evaluated in randomized complete block design with four replicates with the plot size of 3.0 x 0.5 m where each plot comprises 8 plants. The response of genotypes in relation to M. paranaensis was evaluated during the dry (July) and rainy season (November) of 2014. Productivity (bags ha-1), yield, percentage of empty locules, sieve grading percentage (%) were evaluated in the cropping season of 2013/2014. Pearson correlation coefficient was estimated among the variables PGR, NR, NA and productivity. The analysis of variance and mean separation test of Skott-Knott at 5% probability was done to detect the significance difference among the genotypes. There is the possibility of using this parameter to screen the coffee seedlings when a large amount of genetic materials were evaluated. Progenies MG 0179-1-R1-1051 and MG0176-2-R2-943 presented good agronomic characteristics in areas infested with M. paranaensis.
Appears in Collections:Coffee Science

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