Articles
REACTION OF DIPLOID (AA) AND TETRAPLOID (AAAB) BANANA HYBRIDS TO FUSARIUM WILT UNDER FIELD CONDITIONS
Article number
897_53
Pages
387 – 390
Language
English
Abstract
Fusarium wilt, caused by Fusarium oxysporum f. sp. cubense (Foc) was first reported in Brazil in 1930 on Maçã (AAB, Silk). Currently, the disease is present in all banana production regions of the country.
Growing resistant cultivars provides the most efficient control for Fusarium wilt.
In this work, seven diploid (AA) and fourteen tetraploid (AAAB) banana hybrids were evaluated in field trials for resistance to Foc in infested soil.
The banana cultivars Maçã and Figue Pome Naine (AAB, Silk) were used as susceptible controls.
All diploid hybrids, namely 011601, 130404, 130406, 131801, 422306, 51A1901 and SH3263, showed resistance to the pathogen during both first and second crop cycle.
Among the fourteen tetraploid hybrids evaluated, PV42-53, PV42-68, PV42-81, PV 42-85, PV42-142, PV42-143, ST42-08, ST12-31, PV03-44, FHIA-03 and SH36-40 expressed resistance to Fusarium wilt during two crop cycles, while PV42-129, PC42-01 and YB 42-21 behaved as susceptible.
Results also showed that seven out of ten hybrids obtained from crossings in which M53 (AA) was used as male parent showed resistance to Foc, thus suggesting that M53 is a promising parent for use in banana breeding programmes aiming at developing Fusarium wilt-resistant cultivars.
Growing resistant cultivars provides the most efficient control for Fusarium wilt.
In this work, seven diploid (AA) and fourteen tetraploid (AAAB) banana hybrids were evaluated in field trials for resistance to Foc in infested soil.
The banana cultivars Maçã and Figue Pome Naine (AAB, Silk) were used as susceptible controls.
All diploid hybrids, namely 011601, 130404, 130406, 131801, 422306, 51A1901 and SH3263, showed resistance to the pathogen during both first and second crop cycle.
Among the fourteen tetraploid hybrids evaluated, PV42-53, PV42-68, PV42-81, PV 42-85, PV42-142, PV42-143, ST42-08, ST12-31, PV03-44, FHIA-03 and SH36-40 expressed resistance to Fusarium wilt during two crop cycles, while PV42-129, PC42-01 and YB 42-21 behaved as susceptible.
Results also showed that seven out of ten hybrids obtained from crossings in which M53 (AA) was used as male parent showed resistance to Foc, thus suggesting that M53 is a promising parent for use in banana breeding programmes aiming at developing Fusarium wilt-resistant cultivars.
Publication
Authors
A.P. de Matos, Z.J.M. Cordeiro, S. de Oliveira e Silva, E.P. Amorim, D.M.V. Ferreira
Keywords
genetic resistance, Musa spp., Panama disease
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