Green soybean seeds: effect on physiological quality

Sheila Bigolin Teixeira,Lilian Vanussa Madruga de Tunes,Geri Eduardo Meneghello,Andrea Bicca Noguez Martins,Michele Renata Revers Meneguzzo,Joseano Graciliano da Silva

doi:10.1590/0103-8478cr20180631

Sheila Bigolin Teixeira, Lilian Vanussa Madruga de Tunes + Show 4 more

Open Access

https://doi.org/10.1590/0103-8478cr20180631

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Abstract

ABSTRACT: The objective of this research was to assess the manner in which the presence of green soybean seeds affects their physiological quality. In this study, six lots of soybean seeds of cultivar 5958RSF IPRO with 0, 0, 7, 8, 16 and 18% of green seeds were examined. The tests done included the first germination count, germination, electrical conductivity, field emergence, accelerated aging, emergence speed index, Tetrazolium, length, dry mass and seedling growth curve. Results were tested employing the normality test and analysis of variance, and the means were compared by the Tukey test at 5% probability level, employing the Rbio statistical program. Growth data were analyzed by the nonlinear regression analytical method, using the SigmaPlot 12.0 software. The viability and vigor of the greenish seeds were confirmed to reveal higher deterioration, proportional to the percentage of seeds in which the cotyledons had green pigmentation, indicating that the presence of chlorophyll caused the physiological quality of the soybean seeds to decrease.

Highlights

Several factors may influence the soybean seed quality [Glycine max (L.) Merrill] during production, in the course of seed maturation
The viability and vigor of the greenish seeds were confirmed to reveal higher deterioration, proportional to the percentage of seeds in which the cotyledons had green pigmentation, indicating that the presence of chlorophyll caused the physiological quality of the soybean seeds to decrease
This, is because of the factors linked with biotic and / or abiotic stresses can induce premature plant maturation and; yield greenish-colored seeds, which directly affect the physiological quality of the soybean seed lots (ZORATO et al, 2007; FRANÇA NETO et al, 2012; ARRUDA et al, 2016)

Summary

Introduction

Several factors may influence the soybean seed quality [Glycine max (L.) Merrill] during production, in the course of seed maturation. This, is because of the factors linked with biotic and / or abiotic stresses (e.g. high and dry temperatures) can induce premature plant maturation and; yield greenish-colored seeds, which directly affect the physiological quality of the soybean seed lots (ZORATO et al, 2007; FRANÇA NETO et al, 2012; ARRUDA et al, 2016). This greenish hue is imparted by the chlorophyll present in the seed structures, in the cotyledons, as this molecule is hard to degrade, principally due to the enzyme action being interrupted prior to the complete degradation of the chlorophyll (BROWN, 2017).

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