Phytosanitary quality of Brachiaria brizantha ‘BRS Piatã’ seeds in function of climate conditions
ABSTRACT Infected seeds are one of the main pathogen transmission vehicles, and they are responsible for significant losses in production fields; phytosanitary defense depends on the inoculum and climatic factors. Thus, in this study, it was aimed to identify climatic variables of the regions that p...
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Universidade Federal de Campina Grande
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| Series: | Revista Brasileira de Engenharia Agrícola e Ambiental |
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| author | Givanildo Z. da Silva Cibele C. Martins Luciana C. do Nascimento Gabriel G. Barreto Otília R. de Farias |
| author_facet | Givanildo Z. da Silva Cibele C. Martins Luciana C. do Nascimento Gabriel G. Barreto Otília R. de Farias |
| author_sort | Givanildo Z. da Silva |
| collection | DOAJ |
| description | ABSTRACT Infected seeds are one of the main pathogen transmission vehicles, and they are responsible for significant losses in production fields; phytosanitary defense depends on the inoculum and climatic factors. Thus, in this study, it was aimed to identify climatic variables of the regions that propitiate the production of Brachiaria brizantha ‘BRS Piatã’ seeds infected with phytopathogenic fungi. Temperature and rainfall data were obtained from 10 production fields, and phytosanitary quality of the seeds was evaluated with the filter paper method; the means were compared using the Kruskal–Wallis non-parametric analysis. Principal component analysis was performed to determine the relationship between the climatic variables and seed phytosanitary quality. Sites with maximum temperatures higher than 30 °C, mean values close to 25 °C, and rainfall less than 82 mm during harvest were favorable to the incidence of Fusarium spp. The incidence of Bipolaris sp. in the seeds of Piatã grass was favored by temperatures around 19 and 20 °C during the maturation phase. The highest incidence of Exserohilum sp. occurred at the sites in which the temperature during harvest was close to 20 °C and accumulated rainfall, between 167 and 181 mm. |
| format | Article |
| id | doaj-art-a8356541c67940b0ae454522bda52b70 |
| institution | Kabale University |
| issn | 1807-1929 |
| language | English |
| publisher | Universidade Federal de Campina Grande |
| record_format | Article |
| series | Revista Brasileira de Engenharia Agrícola e Ambiental |
| spelling | doaj-art-a8356541c67940b0ae454522bda52b702025-08-20T03:38:54ZengUniversidade Federal de Campina GrandeRevista Brasileira de Engenharia Agrícola e Ambiental1807-192923423724310.1590/1807-1929/agriambi.v23n4p237-243S1415-43662019000400237Phytosanitary quality of Brachiaria brizantha ‘BRS Piatã’ seeds in function of climate conditionsGivanildo Z. da SilvaCibele C. MartinsLuciana C. do NascimentoGabriel G. BarretoOtília R. de FariasABSTRACT Infected seeds are one of the main pathogen transmission vehicles, and they are responsible for significant losses in production fields; phytosanitary defense depends on the inoculum and climatic factors. Thus, in this study, it was aimed to identify climatic variables of the regions that propitiate the production of Brachiaria brizantha ‘BRS Piatã’ seeds infected with phytopathogenic fungi. Temperature and rainfall data were obtained from 10 production fields, and phytosanitary quality of the seeds was evaluated with the filter paper method; the means were compared using the Kruskal–Wallis non-parametric analysis. Principal component analysis was performed to determine the relationship between the climatic variables and seed phytosanitary quality. Sites with maximum temperatures higher than 30 °C, mean values close to 25 °C, and rainfall less than 82 mm during harvest were favorable to the incidence of Fusarium spp. The incidence of Bipolaris sp. in the seeds of Piatã grass was favored by temperatures around 19 and 20 °C during the maturation phase. The highest incidence of Exserohilum sp. occurred at the sites in which the temperature during harvest was close to 20 °C and accumulated rainfall, between 167 and 181 mm.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000400237&lng=en&tlng=engramíneas forrageirascapim-piatãtemperaturaumidadebarreira fitossanitária |
| spellingShingle | Givanildo Z. da Silva Cibele C. Martins Luciana C. do Nascimento Gabriel G. Barreto Otília R. de Farias Phytosanitary quality of Brachiaria brizantha ‘BRS Piatã’ seeds in function of climate conditions Revista Brasileira de Engenharia Agrícola e Ambiental gramíneas forrageiras capim-piatã temperatura umidade barreira fitossanitária |
| title | Phytosanitary quality of Brachiaria brizantha ‘BRS Piatã’ seeds in function of climate conditions |
| title_full | Phytosanitary quality of Brachiaria brizantha ‘BRS Piatã’ seeds in function of climate conditions |
| title_fullStr | Phytosanitary quality of Brachiaria brizantha ‘BRS Piatã’ seeds in function of climate conditions |
| title_full_unstemmed | Phytosanitary quality of Brachiaria brizantha ‘BRS Piatã’ seeds in function of climate conditions |
| title_short | Phytosanitary quality of Brachiaria brizantha ‘BRS Piatã’ seeds in function of climate conditions |
| title_sort | phytosanitary quality of brachiaria brizantha brs piata seeds in function of climate conditions |
| topic | gramíneas forrageiras capim-piatã temperatura umidade barreira fitossanitária |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000400237&lng=en&tlng=en |
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