Data/hora: 02/06/2024 12:42:59

Biblioteca(s): | Embrapa Soja.
Tipo da produção científica: | Artigo em Anais de Congresso
Data corrente: | 01/04/2010
Data da última atualização: | 17/04/2018
Autoria: | MEYER, M. C.; COSTA, N. B.; FERREIRA, L. C.; NUNES JÚNIOR, J.; VENANCIO, W. S.; BEGLIOMINI, E.
Afiliação: | MAURICIO CONRADO MEYER, CNPSo; N. B. COSTA, UNI-ANHANGUERA; L. C. FERREIRA, UFG; JOSÉ NUNES JÚNIOR, CTPA; W. S. VENANCIO, UEPG; E. BEGLIOMINI, BASF.
Título: | Comparison of the efficiency of soybean rust control by preventive and curative fungicides sprays, combined with different adjuvants, in Brazil.
Ano de publicação: | 2010
Fonte/Imprenta: | Plant Management Network, St. Paul, 2010.
Idioma: | Inglês
Notas: | Edição do Proceedings do National Soybean Rust Symposium, New Orleans, 2009.
Conteúdo: | The effects of strobilurins and triazoles premix fungicides, with different adjuvants, were evaluated on the soybean rust control in preventive and curative conditions, in Goiania, GO, Brazil. Treatments consisted of pyraclostrobin (65 g a.i. ha?1) + metconazole (40 g a.i. ha?1), pyraclostrobin (65 g a.i. ha?1) + epoxiconazole (40 g a.i. ha?1), pyraclostrobin (65 g a.i. ha?1) + epoxiconazole (25 g a.i. ha?1), azoxystrobin (65 g a.i. ha?1) + cyproconazole (25 g a.i. ha?1), picoxystrobin (65 g a.i. ha?1) + cyproconazole (25 g a.i. ha?1), and an untreated check. Treatments composed of pyraclostrobin + epoxiconazole were applied with three different adjuvants adhesive (40 ml ha?1), metilated soybean oil (0.25%), and mineral oil (0.30%), respectively. Azoxystrobin + cyproconazole and picoxystrobin + cyproconazole were added with mineral oil (0.6 liter ha?1). The fungicides treatments were applied on soybean stages R1, R4, and R5.3 in the trial preventive (before disease infection) and on soybean stages R2, R5.1, and R5.4 in the trial curative (after infection). All treatments controlled soybean rust (higher than 90% efficiency) and were more effective when applied preventively. The disease severity at soybean stage R5.5 ranged from 0.38 to 2.00% (check 71.25%) on preventive treatments and from 1.25 to 6.00% (check 85%) on curative treatments. The defoliation index at stage R6 (check 100%) ranged from 33 to 48% preventive and from 43 to 64% curative. Soybean yield varied from 3,078 to 2,638 kg ha?1 preventive (check 1,547 kg ha?1) against 2,633 to 2,265 kg ha?1 curative (check 1,250 kg ha?1).
Thesagro: | Doença de planta; Doença fungica; Ferrugem; Fungicida; Soja.
Thesaurus Nal: | Fungicides; Plant diseases and disorders; Rust diseases; Soybeans.
Categoria do assunto: | F Plantas e Produtos de Origem Vegetal
URL: | http://www.plantmanagementnetwork.org/infocenter/topic/soybeanrust/2009/posters/29.pdf
Registro original: | Embrapa Soja (CNPSO)
Exemplares: | CNPSO - (30631-1) - UPC - SP - PP - SP 11824 -  - 11824 - DIS