Crotalaria and millet as alternative controls of root-knot nematodes infecting okra / Crotalária e milheto como controles alternativos de nematóides das galhas infectando quiabo
Biosci. j. (Online)
;
36(3): 713-719, 01-05-2020. tab, graf
Artículo
en Inglés
| LILACS
| ID: biblio-1146499
ABSTRACT
The relationship of crops grown in rotation or in succession has increased every day and the use of antagonistic plants and/or non-host plants is one of the most efficient practices of integrated management of nematodes. This study aimed to evaluate the efficiency of crotalaria (Crotalaria spectabilisRoth) and millet [Pennisetum glaucum (L.) Leeke] 'ADR 300' in reducing the population of Meloidogyne incognita and M. javanica and in increasing the productivity of okra [Abelmoschus esculentus (L.) Moench] when cultivated in succession. The experiment was conducted in an area cultivating okra (host culture) in rotation, with a history of severe infestation by phytonematodes. The experimental design involved randomized blocks with six treatments and four replicates, with the following treatments T1, 15 kg.ha-1 of millet seeds; T2, 30 kg.ha-1 of crotalaria; T3, 10 kg.ha-1 of millet + 20 kg.ha-1 of crotalaria; T4, 20 kg.ha-1 of millet + 6 kg.ha-1 of crotalaria; T5, 6 kg.ha-1 of millet + 36 kg.ha-1 of crotalaria; and T6, control. The nematode populations in the soil and roots were evaluated about 60 d after planting okra, and the yield was evaluated at the end of the crop cycle. Simple treatment with millet or crotalaria reduced the nematode population by 61% and 72%, respectively. The millet-crotalaria intercropping treatments reduced the nematode population by up to 85% compared with the control. In terms of productivity, there was an increase of 787 kg.ha-1 in the millet treatment and 2,109 kg.ha-1 in the intercropping treatments. Both the single cultivation of crotalaria or millet and the consortia of crotalaria and millet were effective in controlling the root-knot nematodes, and increased the productivity of okra.
Texto completo:
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Índice:
LILACS (Américas)
Asunto principal:
Crotalaria
/
Abelmoschus
/
Mijos
/
Nematodos
Tipo de estudio:
Ensayo Clínico Controlado
Idioma:
Inglés
Revista:
Biosci. j. (Online)
Asunto de la revista:
Agricultura
/
Disciplinas das Cincias Biol¢gicas
/
Pesquisa Interdisciplinar
Año:
2020
Tipo del documento:
Artículo
País de afiliación:
Brasil
Institución/País de afiliación:
São Paulo State University (Unesp)/BR
/
University Center of the Educational Foundation of Barretos (UNIFEB)/BR
/
University of São Paulo (USP)/BR
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