Comportamento de maracujazeiros (Passiflora spp.) quanto à morte prematura
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Data
2004-12-01
Autores
Roncatto, Givanildo [UNESP]
Oliveira, João Carlos de [UNESP]
Ruggiero, Carlos [UNESP]
Nogueira Filho, Geraldo Costa [UNESP]
Centurion, Maria Aparecida Pessôa da Cruz [UNESP]
Ferreira, Francisco Ricardo
Título da Revista
ISSN da Revista
Título de Volume
Editor
Sociedade Brasileira de Fruticultura
Resumo
Na Universidade Estadual Paulista, Câmpus de Jaboticabal-SP, estudou-se o comportamento de Passifloráceas quanto à morte prematura de plantas, cultivadas em local com histórico da doença. O objetivo do trabalho foi avaliar o comportamento de diversos acessos de populações e espécies de maracujazeiros em relação a esta doença, sendo que as plantas resistentes deverão ser utilizadas como porta-enxertos de formas comerciais de maracujá-amarelo (Passiflora edulis Sims f. flavicarpa) e em programas de melhoramento genético. As espécies utilizadas foram P. edulis Sims, P. edulis Sims f. flavicarpa Degener, P. nitida H.B.K., P. cincinnata, P. giberti, P. laurifolia, P. morifolia, P. foetida e P. capsularis. em local com histórico da doença, plantaram-se mudas em número variável e em épocas distintas. A condução das plantas e os tratos culturais foram os recomendados para o maracujá-amarelo. A morte prematura das plantas ocorreu entre dois meses e dois anos da cultura no campo. P. giberti e P. nitida mostraram-se resistente à doença, independentemente do local de origem. Entre os demais acessos, não se encontraram fontes promissoras de resistência. Entretanto, novos acessos e novas espécies deverão ser estudadas na busca da resistência.
The behavior of passionfruit, cultivated in sites with disease history, as to premature death, was researched at Universidade Estadual Paulista, Campus of Jaboticabal, SP. The purpose of the research was to evaluate the behavior of acesses and passionfruit species related to this disease, whereas resistant plants are to be used as yellow passionfruit rootstocks, as well as in breeding programs. The species P. edulis Sims, P. edulis Sims f. flavicarpa Degener, P. nitida H.B.K., P. cincinnata, P. giberti, P. laurifolia, P. morifolia, P. foetida, P. capsularis were used. In a site with a known record of the disease, the plants were planted in a variable number and at distinct times. Plant conduction was done as recommended for yellow passionfruit. The premature death of the plants ocurred somewhere between two months and two years of field culture. P. giberti, P. nitida were resistant to the disease despite its place of origin. No other promising resistance sources were found among the remaining acesses. However, new acesses and new species should be researched in search of resistance.
The behavior of passionfruit, cultivated in sites with disease history, as to premature death, was researched at Universidade Estadual Paulista, Campus of Jaboticabal, SP. The purpose of the research was to evaluate the behavior of acesses and passionfruit species related to this disease, whereas resistant plants are to be used as yellow passionfruit rootstocks, as well as in breeding programs. The species P. edulis Sims, P. edulis Sims f. flavicarpa Degener, P. nitida H.B.K., P. cincinnata, P. giberti, P. laurifolia, P. morifolia, P. foetida, P. capsularis were used. In a site with a known record of the disease, the plants were planted in a variable number and at distinct times. Plant conduction was done as recommended for yellow passionfruit. The premature death of the plants ocurred somewhere between two months and two years of field culture. P. giberti, P. nitida were resistant to the disease despite its place of origin. No other promising resistance sources were found among the remaining acesses. However, new acesses and new species should be researched in search of resistance.
Descrição
Palavras-chave
Passion fruit, improvement, Resistance, Maracujá, melhormento, Resistência
Como citar
Revista Brasileira de Fruticultura. Sociedade Brasileira de Fruticultura, v. 26, n. 3, p. 552-554, 2004.