Open AccessNutrição do feijoeiro e intensidade da antracnose em função da aplicação de silício e cobre
Author(s) -
Sylvia Raquel Gomes Moraes,
Edson Ampélio Pozza,
Adélia Aziz Alexandre Pozza,
Janice Guedes de Carvalho,
Paulo Estevão de Souza
Publication year - 2009
Publication title -
acta scientiarum. agronomy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.438
H-Index - 28
eISSN - 1807-8621
pISSN - 1679-9275
DOI - 10.4025/actasciagron.v31i2.7037
Subject(s) - copper sulfate , horticulture , benomyl , copper , calcium silicate , calcium , cultivar , inoculation , silicate , chemistry , zoology , botany , biology , fungicide , materials science , organic chemistry , composite material
Nutrition in bean plants and anthracnose intensity in function of silicon and copper application. 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 x 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 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