Management of wheat stripe mosaic virus by crop rotation.

Soil-borne wheat mosaic disease (SBWMD) caused by wheat stripe mosaic virus (WhSMV) is one of the most important viral diseases of wheat in Brazil. Farmers have used crop rotation (CR) successfully to reduce the incidence of many diseases in wheat. CR can contribute along with genetic resistance in the management of SBWMD. The objective of this study was to evaluate the effect of CR in SBWMD incidence and wheat yield as compared with wheat monoculture (W). During 2017 and 2018 growth seasons, in a long-term experiment, W and three CR: W1 ? white oats-wheat; W2 ? vetch-white oats- wheat; and W3 ? black oatsbarley-black oats-wheat were evaluated using three wheat cultivars: BRS Parrudo (resistant), BRS Reponte (moderately resistant) and BRS Guamirim (susceptible). The rainiest season (2018) was more favorable to the development of the disease. In this year, CR W2 and W3 significantly decreased SBWMD incidence by 90% compared to wheat monoculture. Also, grain yield (GY) differences between CR were higher in the rainiest season. GY increases up to 58% (BRS Reponte), 81% (BRS Guamirim) and 106% (BRS Parrudo) in W2 and W3. The use of plant species that are non-hosts of WhSMV may be one of the main factors that contribute to the reduction of SBWMD levels. Keywords Triticum aestivum L. . Cultural method . Polymyxa graminis. Host range . Soil-borne transmitted virus. Grain yield

Bibliographic Details

Main Authors:	STEMPKOWSKI, L. A., PEREIRA, F. S., VALENTE, J. B., FARIAS, M., LAU, D., DALMAGO, G. A., SANTI, A., MAR, T. B., KUHNEM, P., CASA, R. T., BOGO, A., SILVA, F. N. da
Other Authors:	Lucas Antonio Stempkowski, Crop Production Graduate Program, Santa Catarina; Fernando Sartori Pereira, Crop Production Graduate Program, Santa Catarina; Juliana Borba Valente, Crop Production Graduate Program, Santa Catarina State University/UDESC, Lages, SC 88520-000, Brazil; Monica Farias, Crop Production Graduate Program, Santa Catarina State University/UDESC, Lages, SC 88520-000, Brazil; DOUGLAS LAU, CNPT; GENEI ANTONIO DALMAGO, CNPT; ANDERSON SANTI, CNPT; Talita Bernardon Mar, Embrapa Trigo, Passo Fundo, RS 99050-970, Brazil; Paulo Kuhnem, Biotrigo Genética LTDA, Passo Fundo, RS 99050-970, Brazil; Ricardo Trezzi Casa, Crop Production Graduate Program, Santa Catarina State University/UDESC, Lages, SC 88520-000, Brazil; Amauri Bogo, Crop Production Graduate Program, Santa Catarina State University/UDESC, Lages, SC 88520-000, Brazil; Fábio Nascimento da Silva, Crop Production Graduate Program, Santa Catarina State University/UDESC, Lages, SC 88520-000, Brazil.
Format:	Artigo de periódico biblioteca
Language:	Ingles English
Published:	2020-08-31
Subjects:	Borne transmitted, Cultural method, S Triticum aestivum L, Polymyxa Graminis, Vírus, Triticum, Host range, Soil, Grain yield,
Online Access:	http://www.alice.cnptia.embrapa.br/alice/handle/doc/1124645
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