Soybean Seeds Submitted to Different Water Deficit Periods after Sowing in Dry Soil

نویسندگان

چکیده

Abstract Sowing in dry soil aims to alleviate the effects of water restriction, allowing for an earlier start sowing and maximizing operational productivity use agricultural machinery implements. Thus, objective present work was evaluate physiological quality soybean seed lots submitted different periods deficit after under vegetal cover. The experimental design completely randomized, a 2x5x2 factorial scheme (seed lots: high low vigor; soil: 0; 4; 8; 12 16 days (DAS) cover crops: without with), with four replications. evaluations were carried out from emergence beginning crop's reproductive phase. It verified that there no triple interaction factorial, where each factor individually interfered on seeds, regardless their initial vigor. concluded plots vigor affects negatively seedlings, as well soil. However, presence vegetation mitigates this effect, greater due promoting more favorable environmental conditions. Keywords: Glycine max. Vegetation Ground Cover. Seed Vigor. ResumoA semeadura em solo seco visa amenizar os efeitos de restrição hídrica, permitindo o início da mais precoce e maximização produtividade operacional uso máquinas implementos agrícolas. Deste modo, objetivo do presente trabalho foi avaliar qualidade fisiológica lotes sementes soja submetidas aos diferentes períodos déficit hídrico após sob cobertura solo. O delineamento conduzido inteiramente casualizado, esquema fatorial (lotes sementes: alto baixo seco: dias coberturas vegetais solo: sem com), com quatro repetições. As avaliações foram realizadas partir emergência até fase reprodutiva cultura. Verificou-se que não houve interação tripla fatorial, onde cada fator individualmente teve interferência sobre das soja, independente seu inicial. Conclui-se utilização diferença afeta negativamente plântulas bem como seco. Todavia, presença ameniza esse efeito, possibilitando maior virtude dessa promover condições ambientais favoráveis. Palavras-chaves: Cobertura Vegetal Solo. Vigor Sementes.

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ژورنال

عنوان ژورنال: Ensaios e Ciência

سال: 2023

ISSN: ['2178-695X']

DOI: https://doi.org/10.17921/1415-6938.2023v27n1p87-92