Resistance of Cucurbita spp. germplasm to the fungus Macrophomina phaseolina
Palavras-chave:
Cucurbita moschata, Cucurbita maxima, Soil-dwelling pathogen, Variability, Plant genetic resources.Resumo
The objective of this study was to evaluate genotypes of Cucurbita moschata and Cucurbita maxima for resistance to the fungus Macrophomina phaseolina (Taissi) Goid. The experiment used 17 accessions of Cucurbita moschata Duchesne (ABTOU 805 F1, ABO 168, ABPUN 206 F4, ABPUN 201 F6, ABTOU 805 F4, ABPUN 206 F6, ABPUN 206 F2, ABPUN 206 F1, ROÇA DE PAI, ABTOU 805 F4, P114-1, P160-2, P11-2, P114-6, P131-21, P114-02 and P97-1), 20 accessions of Cucurbita maxima Duchesne (ABPUN-213, ABCRN-304, ABTOU-802-F4, ABAPO-002, ABAPO-005, JCCM-2014, ABO-156, ABPUN-212, ABCRN-315, ABTOU-802 F1, ABAPO-007, JERIMUM LU, ABAPO-024, ABPUN-211, RGV 2011.1 01, ABCRN-306, ABBAR-101, ABCRN-302, ABTOU-802 F3 and JCCA) preserved in the Cucurbit Germplasm Collection of the Federal Rural University of the Semi-Arid Region (UFERSA). Four commercial controls were also used, two for each species. In both studies, three isolates of M. phaseolina were inoculated, which are kept at the Fungal Culture Collection of UFERSA: MM1531 (GenBank: MN136199), ME249 and ME250. Plants received inoculum of the pathogen in pieces of colonized toothpick and were evaluated for incidence and severity of the disease. Both species showed resistant plants, but with varied frequencies for the accessions. Considering the species, the frequencies observed for C. moschata were higher than those observed for C. maxima.Downloads
Os dados de download ainda não estão disponíveis.
Downloads
Publicado
2021-08-21
Edição
Seção
Fitotecnia
Licença
Atribuição
CC BY
Esta licença permite que outros distribuam, remixem, adaptem e criem a partir do seu trabalho, mesmo para fins comerciais, desde que lhe atribuam o devido crédito pela criação original. É a licença mais flexível de todas as licenças disponíveis. É recomendada para maximizar a disseminação e uso dos materiais licenciados. Ver o Resumo da Licença | Ver o Texto Legal
Como Citar
LIMA, Fernanda; BARBOZA, Michele; AMBRÓSIO, Márcia; ALBUQUERQUE, Neilza; NUNES, Glauber; BARROS JÚNIOR, Aurélio; NOGUEIRA, Geovane; SILVEIRA, Lindomar. Resistance of Cucurbita spp. germplasm to the fungus Macrophomina phaseolina. Revista Ciência Agronômica, [S. l.], v. 52, n. 3, 2021. Disponível em: https://periodicos.ufc.br/revistacienciaagronomica/article/view/84986. Acesso em: 3 mar. 2026.
