Crecimiento y calidad de plántulas de café (Coffea arabica) injertadas sobre Coffea canephora frente a nematodos en vivero

Abstract

espanolEl uso de plantas injertadas es una tecnica usada para el control de Meloidogyne spp. en cafe, incluye multiples factores que influyen sobre el comportamiento de la pua y el porta-injerto, tambien sobre el crecimiento y desarrollo de la planta injertada. En Peru, son pocos los trabajos realizados sobre esta relacion, de manera especial el caso del cafe. Este experimento se realizo con el objetivo de evaluar el comportamiento de nueve cultivares de cafe: Laurina IAC 870, Catuai vermelho IAC 144, Catuai vermelho IAC 99, Catuai amarelo IAC 86, Caturra amarelo Col. 88 IAC 476, Bourbon vermelho IAC 662, Caturra vermelho IAC 477, Obata IAC 1669-20 y Limani, injertados sobre Coffea canephora en presencia y ausencia de Meloidogyne spp. en fase de vivero. Los resultados mostraron que en altura y diametro de tallo destaco el injerto Obata IAC 1669-20/Robusta (inoculado), mientras que para numero de hojas, el injerto Caturra Vermelho IAC 477/Robusta (inoculado). Al medir la biomasa seca de la parte aerea y radicular, los injertos Laurina IAC 870/Robusta (no inoculado), Caturra Vermelho IAC 477/Robusta (inoculado) y Obata IAC 1669-20/Robusta (inoculado) tuvieron los valores mas altos. Para el Indice de Calidad de Dickson (ICD), los injertos Caturra Vermelho IAC 477/Robusta (inoculado) y Obata IAC 1669-20/Robusta (inoculado) fueron los mas destacados. Se concluyo que Caturra Vermelho IAC 477 y Obata IAC 1669-20 injertados sobre C. canephora fueron los cultivares que mejor respondieron ante la presencia de Meloidogyne spp. EnglishThe use of grafted plants is a technique used for the control ofMeloidogynespp. in coffee, which includes multiplefactors that influence the behavior of the barb and the graft holder and also the growth and development of the graftedplant. In Peru, little work has been done to know the relationship between the barb and the graft holder, especially in thecase of coffee. This experiment was carried out withthe objective of evaluating the behavior of nine coffee cultivars:Laurina IAC 870, Catuai vermelho IAC 144, Catuai vermelho IAC 99, Catuai amarelo IAC 86, Caturra amarelo Col. 88IAC 476, Bourbon vermelho IAC 662, Caturra vermelho IAC 477, Obata IAC 1669-20 and Limani, grafted onCoffeacanephorain presence and absence ofMeloidogynespp. in nursery phase. The results showed that the Obata IAC 1669-20/Robusta graft (inoculated) stood out in height and stem diameter, while for the number of leaves was theCaturraVermelho IAC 477/Robusta graft (inoculated). When measuring the dry biomass of the aerial and root part, the LaurinaIAC 870/Robusta (not inoculated), Caturra Vermelho IAC 477/Robusta (inoculated) and Obata IAC 1669-20/Robusta(inoculated) grafts had the highest values. For the Dickson Quality Index (ICD), the Caturra Vermelho IAC 477/Robusta(inoculated) and Obata IAC 1669-20/Robusta (inoculated) grafts were the most outstanding. It was concluded that Catur-ra Vermelho IAC 477 and Obata IAC 1669-20grafted onC. canephorawere the cultivars that best responded to thepresence ofMeloidogynespp