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- Title
Nutrição do feijoeiro e intensidade da antracnose em função da aplicação de silício e cobre.
- Authors
Moraes, Sylvia Raquel Gomes; Pozza, Edson Ampélio; Pozza, Adélia Aziz Alexandre; de Carvalho, Janice Guedes; de Souza, Paulo Estevão
- Abstract
The objective of this work was to evaluate the effect of calcium silicate and copper sulfate on anthracnose intensity and nutrition of bean plants. The experiment was conducted using an experimental design in randomized blocks following a 4 × 4 factorial arrangement, (four levels of calcium silicate and four levels of copper sulfate) and two additional treatments (plants without inoculation and plants sprinkled with Benomyl). Four evaluations of the incidence and severity of anthracnose were done, in addition to measuring total leaf area. At the end of the evaluations, incidence and severity data were integrated over time, obtaining the area under disease progress curve (AUDPC). Contents of N, P, K, Ca, Mg, B, Cu, Fe, Mn, Zn, Si and lignin were determined in the aerial part. A linear decrease of the intensity AUDPC was observed with the increase of the doses of calcium silicate. The severity AUDPC was influenced by the doses of copper, obtaining a reduction of 35% on the higher dosage. The supply of silicon and copper altered the content of the K, Mg, S, Zn, Ca and Si in the aerial part of the bean plants.
- Subjects
COMMON bean; ANTHRACNOSE; PLANT nutrition; COLLETOTRICHUM lindemuthianum; CALCIUM silicates; COPPER sulfate; PLANT inoculation; PLANT diseases; FUNGI in agriculture
- Publication
Acta Scientiarum: Agronomy, 2009, Vol 31, Issue 2, p283
- ISSN
1679-9275
- Publication type
Article
- DOI
10.4025/actasciagron.v31i2.7037