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Biosci. j. (Online) ; 35(1): 42-54, jan./fev. 2019. tab
Article in English | LILACS | ID: biblio-1048559

ABSTRACT

O trigo (Triticum aestivum L.) é um cereal com grande importância econômica ecapacidade produtiva. Porém, é sujeito ao ataque de várias doenças o que demanda o uso de fungicidas durante o ciclo. Assim, este estudo teve como objetivo verificar a qualidade fisiológica e presença de aflatoxina em sementes de trigo quando tratadas com concentrações de fungicidas durante o desenvolvimento da cultura. Plantas da cultivar Mirante foram cultivadas com aplicação foliar de fungicidas com princípios ativos estrobilurina e triazol, adicionando-se adjuvante foliar. Após a colheita, avaliou-se o grau de umidade das sementes, porcentagem de germinação, envelhecimento acelerado, deterioração controlada, teste de frio,emergência em areia, condutividade elétrica e presença de aflatoxinas. Os resultados mostraram que a qualidade fisiológica e sanitária das sementes de trigo não foi influenciada pelo uso dos fungicidas testados. As sementes apresentaram elevado índice de germinação e emergência de plântulas, mesmo quando submetidas a condições de estresse.


Wheat (Triticum aestivum L.) is a cereal of great economic importance and productive capacity. However, it is subject to attack by various diseases, which requires the use of fungicides during the cycle. Thus, this study aimed to verify the physiological quality and presence of aflatoxin in wheat seeds when treated with concentrations of fungicides during the development of the crop. Plants of the cultivar Mirante were grown with foliar application of fungicides with active principles strobilurin and triazole, adding leaf adjuvant. After harvesting, the moisture content of the seeds, percentage of germination, accelerated aging, controlled deterioration, cold testing, sand emergence, electrical conductivity and the presence of aflatoxins were evaluated. The results showed that the physiological and sanitary quality of wheat seeds was not influenced by the use of the tested fungicides. The seeds showed a high rate of germination and seedling emergence, even when subjected to stress conditions. importanceimˈpôrtns Traduções de importance SubstantivoFrequência aimportância importance, significance, matter, value, amount, import ovalor value, amount, worth, valuation, importance, merit oalcance reach, range, scope, extent, power, importance ainfluência influence, leverage, hold, power, weight, importance aconsideração consideration, account, regard, respect, thought, importance aconseqüência consequence, result, outcome, effect, aftermath, importance Definições de importance Substantivo 1 the state or fact of being of great significance or value. On the whole it is clear that my field trip was of huge importance for my research. Sinônimos: powerinfluenceauthorityswayweightimpactdominanceprominenceeminencepreeminenceprestigenotabilityworthstaturecloutpullsignificancemomentousnessimportconsequencenotenoteworthinesssubstanceseriousnessgravityweightinessurgency Exemplos de importance Music lost its importance and he even sold some of his guitars to pay for his habit. +28 exemplos Sinônimos de importance Substantivo powersignificancegrandness +25 sinônimos


Subject(s)
Triticum , Aflatoxins , Fungicides, Industrial , Seeds , Germination
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