Accelerated aging test and its relationship to physiological potential of soybean seeds

Abstract: Although accelerated aging is one of the tests most used for evaluation of the physiological quality of soybean seeds, there are few studies that relate it to other physiological tests used for the crop. In this context, the objective of this study was to investigate the relationship of accelerated aging to the results of physiological performance obtained in the vigor tests most frequently used in the soybean quality control system (germination, first count, seedling vigor classification, accelerated aging, electrical conductivity, emergence speed index, final emergence in sand substrate, and field emergence). The experiment was conducted with seeds that had different vigor levels, adopting a completely randomized experimental design with four replications. Pearson simple correlation analysis (r) and simple linear regression analysis at both 1% and 5% probability were conducted on the data. The results showed that the seedling vigor classification test (r = 0.9160) and the field emergence test (r = 0.9198) were those that best correlated with accelerated aging, followed by the germination (r = 0.8690), first count of germination (r = 0.8460), and electrical conductivity (r = 0.8912) tests.摘要：尽管加速老化试验是评估大豆种子生理品质最常用的检测方法之一，但将其与该作物其他生理检测方法相关联的研究却较为匮乏。在此背景下，本研究旨在探究加速老化试验与大豆品质管控体系中最常用的活力检测项目——包括发芽率、发芽势、幼苗活力分级、加速老化、电导率测定、出苗速率指数、沙基最终出苗率以及田间出苗率——所得生理性能结果之间的关联。本实验采用不同活力水平的种子，设置四次重复，采用完全随机试验设计。对数据进行了皮尔逊简单相关分析（r值）以及显著性水平为1%和5%的简单线性回归分析。结果表明，幼苗活力分级试验（r=0.9160）与田间出苗率试验（r=0.9198）与加速老化试验的相关性最高，其次依次为发芽率试验（r=0.8690）、发芽势试验（r=0.8460）以及电导率测定试验（r=0.8912）。