Incidence of base rot and wilt, sanitary severity and influence about seed pathology by cultivars of common bean (Phaseolus vulgaris)

• Main Authors: Mateus Paulino Braga, Luana Machado Rezende, Lucinete Martins Barbosa Estrela, Natanael Marcos Lemes, Anderson Rodrigues Rietjens, Ana Livia Lemos Oliveira, Jakelinny Martins Silva, Laryssa Lucas Araújo Silva, Milton Luiz da Paz-Lima
• Format: Article
• Language: English
• Published: Instituto Biológico 2019-02-01
• Series: Arquivos do Instituto Biológico
• Subjects: plant sanitary complex; wilt stem beans; Phaseolus vulgaris; genetic resistance; seed pathology
• Online Access: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1808-16572019000100202&lng=en&tlng=en

ABSTRACT: The objective of this work was to conduct a temporal evaluation of incidence of rot base and sanitary severity, and to relate the impact on the seed pathology of common bean cultivars. In the 2015-2016 harvest, in the city of Ipameri, Goiás, ten cultivars of common bean were evaluated (BRS Estilo©, BRS Pérola©, IPR Tangará©, IPR Tuiuiú©, IPR Uirapuru©, IAC Milênio©, Imperador©, IAC F3 R2©, IAC OTG© and IPR Campos Gerais©) and distributed into five blocks, totaling 40 experimental units. The incidence of wilt and base rot and sanitary severity were analyzed by taking ten random samples per block at 21, 28, 56, 63 and 69 days after planting. At the end of 120 days, a total of 20 plants were harvested per cultivar, and 250 seeds were harvested for application of the Blotter Test method. From 21 to 69 days after planting, the cultivars BRS Pérola© and IPR Campos Gerais© deserve to be highlighted for presenting the lowest incidence of wilt in the reproductive and vegetative cycles. The cultivar BRS Pérola© showed the lowest incidence of wilt and sanitary severity. In the analysis of harvested seeds, the cultivar BRS Pérola© presented high physiological quality for all evaluated parameters. On the other hand, Cramberry (OTG)© showed low physiological potential in germination and vigor tests.