Allelopathic effect of irrigation with different concentrations of leaf extracts of Jatropha curcas L. on growth Brassica oleracea | Zendy

Antonelli Jhonatas | Zendy; Antonio Lindino Cleber | Zendy; Aparecido Bariccatti Reinaldo | Zendy; Nelson Melegari de Souza Samuel | Zendy; Cezar Nadaletti Willian | Zendy; Andr eacute Cremonez Paulo | Zendy; Rossi Eduardo | Zendy

Open Access

Allelopathic effect of irrigation with different concentrations of leaf extracts of Jatropha curcas L. on growth Brassica oleracea

Author(s) -

Antonelli Jhonatas,

Antonio Lindino Cleber,

Aparecido Bariccatti Reinaldo,

Nelson Melegari de Souza Samuel,

Cezar Nadaletti Willian,

Andr eacute Cremonez Paulo,

Rossi Eduardo

Publication year - 2016

Publication title -

african journal of agricultural research

Language(s) - English

Resource type - Journals

ISSN - 1991-637X

DOI - 10.5897/ajar2013.7692

Subject(s) - jatropha curcas , allelopathy , dry matter , stalk , biology , irrigation , crop , brassica oleracea , agronomy , horticulture , botany , germination

The competition for sunlight, nutrients or space makes many plants from releasing toxins that can harm the growth and development of competing plants. This work aims to measure the allelopathic effect of the physic nut leaf extract on the cabbage plantation growth. The experiment was conducted in the Missal city, state of Parana, Brazil. It was used 6 different concentrations of extract Jatropha. curcas L., as follow: 0, 5, 10, 20, 40, 80%. After 30 days of cultivation it was performed analysis of the following parameters of the crop development: Stalk diameter, stalk length, leaf area, root length, fresh and dry matter of root, fresh and dry matter of air portion, and the evaluated parameters varied in accordance with different levels of J. curcas extract. Key words: Purging nut, alellochemicals, allelopathy, foliar extracts, irrigation.

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