Resumo

GARCES-FIALLOS, Felipe Rafael; GUAMAN-ANCHUNDIA, Robinson Eliécer; BOZADA-VELIZ, Jonis Jahir  e  DIAZ-CORONEL, Gorki. Agronomy characteristics and health of peanut (Arachis hypogaea L.) germplasm promissory in Quevedo, Ecuador. Acta Agron. [online]. 2014, vol.63, n.4, pp.318-325. ISSN 0120-2812.  https://doi.org/10.15446/acag.v63n4.43080.

During the dry seasons of 2010 and 2011 in the experimental farm La María of the State Technical University of Quevedo, Ecuador, located at km. 7.5 via Quevedo-El Empalme, at 79 ° 30' 08" W and 01 ° 00' 35" S, the agronomic characteristics and health status of lines and varieties of groundnut (Arachis hypogaea L.) were evaluated. Peanut promising lines from university campus CB-02, CB-05, CB-12, CB-13, CB-15, CB-16 and CB-23 were used, and commercial varieties Diamante, Polachi, lNlAP-380 e lNlAP-381 were used as controls. Seedling emergence, days to flowering, plant height, some production components (number of grains, fruits and sterile full weight of fruits and grains) and the presence of leaf spot (Cercospora arachidicola and Cercosporidium personatum) and rust (Puccinia arachidis) were measured. Design completely randomized (RCBD) with 11 treatments and three replications in 2010 and four replications in 2011, and for comparisons between treatment means blocks the multiple range test of Duncan (P < 0.05) was used. The CB-23 line stood out among the promising germplasm for increased productivity; this line with the commercial variety lNlAP-380, had the lowest leaf spot attacks. The CB-15 and Polachi genotypes showed no rust lesions

Palavras-chave : Arachis hypogaea L.; agronomy; production; leaf spot; rust; disease resistence.

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