Reaction of lima bean genotypes to <i>Macrophomina phaseolina</i>

García, Mynor Efraín Munguía; Sousa, Enayra Silva; Silva, Jayara Dayany da Costa; Melo, Maruzanete Pereira de; Mota, José Monteiro da; Almeida, Antônio Dias de; Gomes, Regina Lúcia Ferreira; Beserra, José Evando Aguiar

doi:10.1590/0100-5405/185340

Acessibilidade / Reportar erro

Brasil

Español English

sumário « anterior atual seguinte »

Sumário

ARTIGOS • Summa Phytopathol. 45 (1) • Jan-Mar 2019 • https://doi.org/10.1590/0100-5405/185340 copy

Reaction of lima bean genotypes to Macrophomina phaseolina

Reação de genótipos de feijão-fava a Macrophomina phaseolina

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT

Charcoal rot, caused by Macrophomina phaseolina, is an important disease of lima bean (Phaseolus lunatus L.) in the Northeast of Brazil. Considering that there are no reports of resistance to this disease in Brazil, 37 lima bean accessions were evaluated for their resistance reaction and resistance stability against isolates of M. phaseolina in two periods of the year (February-March and July-August 2016), with the aim of selecting genotypes with the potential for use in the management of this disease. Seeds were inoculated at sowing, using rice grains with husk that were colonized by the pathogen. The evaluations of genotypes were carried out at every five days, from the tenth day after sowing, using a score scale and dividing them into six reaction classes. From a population of 37 accessions of P. lunatus, no immunity reaction to M. phaseolina was seen; however, thirteen accessions presented the lowest severity levels and greatest stability in the two seasons: UFPI 892, UFPI 908 and UFPI 905, which were considered resistant to the isolate COUFPI 06. The resistance reaction of accessions considered resistant varied depending on the isolate of M. phaseolina. Accession UFPI 908 expressed the most promising results for resistance and stability of resistance against the isolates COUFPI 06, COUFPI 08 and COUFPI 10. Therefore, accession UFPI 908 constitutes a promising source of resistance to M. phaseolina, making possible its use in breeding programs and in integrated management of charcoal rot.

Keywords
Phaseolus lunatus L.; charcoal rot; genetic resistance

Isolate	SEV (%)	Resistence reaction
COUFPI 05	42.86 a	MS
COUFPI 08	76.19 b	S
COUFPI 11	88.57 b	HS
COUFPI 06	89.52 b	HS
COUFPI 10	90.48 b	HS
COUFPI 07	95.24 b	HS
COUFPI 09	100.00 b	HS

Access	SEV (%)		Resistence reaction
Access	Period I	Period II	Period I	Period II
UFPI 892	12.50 a A	5.00 a A	R	R
UFPI 908	25.00 b B	5.00 a A	MR	R
UFPI 905	27.50 b B	5.00 a A	MR	R
UFPI 902a	38.33 b B	14.00 a A	MR	R
UFPI 902b	34.17 b B	19.00 a A	MR	R
UFPI 904	39.17 b B	16.00 a A	MR	R
UFPI 917	55.83 c B	14.00 a A	MS	R
UFPI 915	57.50 c B	10.00 a A	MS	R
UFPI 882a	65.00 d B	14.00 a A	S	R
UFPI 897	22.50 a A	35.00 b B	MR	MR
UFPI 916	24.16 a A	29.00 b B	MR	MR
UFPI 893	21.66 a A	51.00 c B	MR	MS
UFPI 889	37.50 b A	49.00 c B	MR	MS
UFPI 898	38.34 b A	50.00 c B	MR	MS
UFPI 907b	25.84 b A	71.00 d B	MR	S
UFPI 913	41.66 b A	31.00 b A	MS	MR
UFPI 896	41.67 b A	31.00 b A	MS	MR
UFPI 900	48.34 c B	35.00 b A	MS	MR
UFPI 909	51.66 c B	38.00 b A	MS	MR
UFPI 910	64.17 d B	40.00 b A	S	MR
UFPI 885	82.50 d B	29.00 b A	HS	MR
UFPI 911	47.50 c A	50.00 c A	MS	MS
UFPI 912	50.00 c A	50.00 c A	MS	MS
UFPI 899	54.16 c A	45.00 c A	MS	MS
UFPI 891	55.00 c A	58.00 c A	MS	MS
UFPI 881	57.50 c B	41.00 b A	MS	MS
UFPI 888	57.50 c A	56.00 c A	MS	MS
UFPI 914	45.00 c B	78.00 d A	MS	S
UFPI 906	48.33 c A	68.00 d B	MS	S
UFPI 890	53.34 c A	74.00 d B	MS	S
UFPI 918	60.00 c A	66.00 d B	MS	S
UFPI 882b	75.83 d B	40.00 b A	S	MS
UFPI 886a	58.33 c A	52.00 c A	S	S
UFPI 907a	65.00 d A	79.00 d A	S	S
UFPI 886b	70.00 d A	79.00 d A	S	S
UFPI 887	61.67 c A	90.00 d B	S	HS
UFPI 880	90.00 d A	75.00 d A	HS	S
MEAN	48.76 A	43.11 B	--	--

Isolate
	COUFPI 05		COUFPI 06		COUFPI 07		COUFPI 08		COUFPI 09		COUFPI 10		COUFPI 11
Access
UFPI 892	83.33	a AB	36.67	a A	100.00	a B	100.00	b B	100.00	a B	58.30	ab A	78.33	a AB
UFPI 905	100.00	a B	68.33	a A	100.00	a B	88.33	ab AB	100.00	a B	91.70	bc AB	91.67	a AB
UFPI 908	85.00	a C	25.00	a A	100.00	a C	58.33	a ABC	75.00	a BC	33.30	a AB	66.67	a ABC
UFPI 886b	100.00	a A	66.67	a A	100.00	a A	100.00	b A	100.00	a A	100.00	c A	91.67	a A
UFPI 907a	100.00	a A	66.67	a A	100.00	a A	100.00	b A	100.00	a A	100.00	c A	100.00	a A
UFPI 890	100.00	a A	78.33	a A	100.00	a A	83.33	ab A	100.00	a A	86.70	bc A	100.00	a A

UFPI 892	HS	a AB	MR	a A	HS	a B	HS	b B	HS	a B	MS	ab A	S	a AB
UFPI 905	HS	a B	S	a A	HS	a B	HS	ab AB	HS	a B	HS	bc AB	HS	a AB
UFPI 908	HS	a C	MR	a A	HS	a C	MS	a ABC	S	a BC	MR	a AB	S	a ABC
UFPI 886b	HS	a A	S	a A	HS	a A	HS	b A	HS	a A	HS	c A	HS	a A
UFPI 907a	HS	a A	S	a A	HS	a A	HS	b A	HS	a A	HS	c A	HS	a A
UFPI 890	HS	a A	S	a A	HS	a A	HS	a b A	HS	a A	HS	bc A	HS	a A

Grupo Paulista de Fitopatologia FCA/UNESP - Depto. De Produção Vegetal, Caixa Postal 237, 18603-970 - Botucatu, SP Brasil, Tel.: (55 14) 3811 7262, Fax: (55 14) 3811 7206 - Botucatu - SP - Brazil
E-mail: summa.phyto@gmail.com

Acompanhe os números deste periódico no seu leitor de RSS

[1] Autor para correspondência: José Evando Aguiar Beserra Jr (evando@ufpi.edu.br).