Comportamento de cultivares de cafeeiros C. Arabica L. enxertados sobre cultivar ‘Apoatã IAC 2258’ (Coffea canephora)
Data
2012-07
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Editor
Universidade Federal de Santa Maria
Resumo
Objetivou-se no trabalho avaliar a influência da enxertia e do porta-enxerto ‘Apoatã IAC 2258’ no comportamento agronômico de sete cultivares de cafeeiro da espécie Coffea arabica cultivadas em solo isento de fitonematoides. O ensaio foi conduzido em delineamento experimental de blocos casualizados em esquema fatorial (7 x 3) com quatro repetições, sendo sete cultivares de Coffea arabica (‘Obatã IAC 1669-20’, ‘Acauã’, ‘Oeiras MG 6851’, ‘Catucaí Amarelo 2SL’, ‘Topázio MG 1190’, ‘IBC Palma II’ e ‘Paraíso MG H 419-1’) e três tipos de enxertia (muda enxertada, auto enxertada e pé franco). Foi avaliada a produtividade média de quatro anos, uniformidade de maturação, percentagem de frutos chochos e classificação do grão por tipo de peneira. As cultivares enxertadas estudadas apresentaram comportamento agronômico satisfatório em todas as características avaliadas e semelhante ao pé-franco. Em áreas isentas de fitonematoides, à exceção das cultivares ‘IBC Palma II’ e ‘Paraíso MG H 419-1’, as demais cultivares estudadas são adequadas opções de escolha para uso como copas. A técnica da enxertia com o uso do porta-enxerto ‘Apoatã IAC 2258’ em área isenta de fitonematoides não se justifica para incremento de produtividade.
This research had the objective to evaluate the effect of grafting and ‘Apoatã IAC 2258’ cv. as rootstock on agronomic performance of seven Coffea arabica cvs. planted in area nematodes free. The experimental design was randomized blocks using a 7x3 factorial scheme with four repetitions. The treatments were ‘Obatã IAC 1669-20’, ‘Acauã’, ‘Oeiras MG 6851’, ‘Catucaí Amarelo 2SL’, ‘Topázio MG 1190’, ‘IBC Palma II’ and ‘Paraíso MG H 419-1’ coffee cultivars grafted on ‘Apoatã IAC 2258’, self grafted (meaning a cultivar was grafted on a rootstock of the same cultivar) and no grafting. The characteristic evaluated was the average yield of beans between the first and the fourth year, the fruit maturation stage, floating grain percentage and the bean size. The grafting cultivars showed good agronomic performance in the characteristic evaluated. The performance in coffee cultivars grafted on ‘Apoatã IAC 2258’ is the same in no grafting. In nematodes free areas, with the exception of the cultivars ‘IBC Palma II’ and ‘Paraíso MG H 419-1’, all cultivars are good choices to be used as scions. The grafting technique using ‘Apoatã IAC 2258’ as rootstock on area free of nematodes is not justified for yield increase.
This research had the objective to evaluate the effect of grafting and ‘Apoatã IAC 2258’ cv. as rootstock on agronomic performance of seven Coffea arabica cvs. planted in area nematodes free. The experimental design was randomized blocks using a 7x3 factorial scheme with four repetitions. The treatments were ‘Obatã IAC 1669-20’, ‘Acauã’, ‘Oeiras MG 6851’, ‘Catucaí Amarelo 2SL’, ‘Topázio MG 1190’, ‘IBC Palma II’ and ‘Paraíso MG H 419-1’ coffee cultivars grafted on ‘Apoatã IAC 2258’, self grafted (meaning a cultivar was grafted on a rootstock of the same cultivar) and no grafting. The characteristic evaluated was the average yield of beans between the first and the fourth year, the fruit maturation stage, floating grain percentage and the bean size. The grafting cultivars showed good agronomic performance in the characteristic evaluated. The performance in coffee cultivars grafted on ‘Apoatã IAC 2258’ is the same in no grafting. In nematodes free areas, with the exception of the cultivars ‘IBC Palma II’ and ‘Paraíso MG H 419-1’, all cultivars are good choices to be used as scions. The grafting technique using ‘Apoatã IAC 2258’ as rootstock on area free of nematodes is not justified for yield increase.
Descrição
Palavras-chave
Tipos de enxertia, Produtividade, Cultivares
Citação
PAIVA, R. F. et al. Comportamento de cultivares de cafeeiros C. Arabica L. enxertados sobre cultivar ‘Apoatã IAC 2258’ (Coffea canephora). Ciência Rural, Santa Maria, v. 42, n. 7, p. 1155-1160, jul. 2012.