Accelerated aging and seedling field emergence in soybean

Scientia Agricola

Reynaldo Melo Torres¹  Roberval Daiton Vieira¹  Maristela Panobianco¹ 

[1],UNESP Depto. de Produção Vegetal Jaboticabal SP ,Brasil

关键词: Glycine max (L.) Merrill;    seeds;    vigor;    Glycine Max (L.) Merrill;    sementes;    vigor;   

DOI  :  10.1590/S0103-90162004000500002

来源: SciELO

【 摘 要 】

Information regarding the relationship between laboratory seed vigor testing and seedling field emergence is very important to estimate seed performance after sowing and help producers adopt the best procedures to improve stand establishment. The objective of the present study was to relate accelerated aging (AA) test results to soybean [Glycine max (L.) Merrill] seedling field emergence results based on data obtained over three agricultural years. The following evaluations were made: seed water content, standard germination, accelerated aging, electrical conductivity, and seedling field emergence. There was a close association between planting environmental conditions, seed physiological quality and seedling field emergence. The most accurate predictions were obtained for AA values > 90%, when field emergence was higher than 80% (r² = 0.90). Based on the results it was concluded that the AA test provided an accurate estimate of field emergence of soybean seedlings. However, as seedbed environmental conditions became less favorable, the ability of the AA test to estimate field performance significantly decreased.

【 授权许可】

CC BY   
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