Seed physiological traits and environmental factors influence seedling establishment of vegetable soybean ( Glycine max L.).

Autor:	Li X; School of Plant and Environmental Sciences, Virginia Tech, Blacksburg, VA, United States.; Department of Horticultural Sciences, Tropical Research and Education Center, University of Florida, Homestead, FL, United States., Liu K; School of Plant and Environmental Sciences, Virginia Tech, Blacksburg, VA, United States., Rideout S; School of Plant and Environmental Sciences, Virginia Tech, Blacksburg, VA, United States., Rosso L; School of Plant and Environmental Sciences, Virginia Tech, Blacksburg, VA, United States., Zhang B; School of Plant and Environmental Sciences, Virginia Tech, Blacksburg, VA, United States., Welbaum GE; School of Plant and Environmental Sciences, Virginia Tech, Blacksburg, VA, United States.
Jazyk:	angličtina
Zdroj:	Frontiers in plant science [Front Plant Sci] 2024 Jun 03; Vol. 15, pp. 1344895. Date of Electronic Publication: 2024 Jun 03 (Print Publication: 2024).
DOI:	10.3389/fpls.2024.1344895
Abstrakt:	Edamame ( Glycine max (L.) Merr.), a specialty soybean prized for its nutritional value and taste, has witnessed a surge in demand within the U.S. However, subpar seedling stands have hindered its production potential, necessitating increased inputs for farmers. This study aims to uncover potential physiological factors contributing to low seedling emergence in edamame. We conducted comprehensive assessments on thirteen prominent edamame genotypes alongside two food-grade and two grain-type soybean genotypes, focusing on germination and emergence speed in both laboratory and field settings. Additionally, we employed single electrical conductivity tests and identified and quantified seed leachate components to distinguish among soybean types. Furthermore, using a LabField™ simulation table, we examined seed emergence across a wide soil temperature range (5°C to 45°C) for edamame and other soybean types. All seeds were produced under the same environmental conditions, harvested in Fall 2020, and stored under uniform conditions to minimize quality variations. Our findings revealed minimal divergence in emergence percentages among the seventeen genotypes, with over 95% germination and emergence in laboratory conditions and over 70% emergence in the field. Nonetheless, edamame genotypes typically exhibited slower germination speeds and higher leachate exudates containing higher soluble sugars and amino acids. Seed size did not significantly impact total emergence but was negatively correlated with germination and emergence speed, although this effect could be mitigated under complex field conditions. Furthermore, this study proposed differences that distinguish edamame from other soybean types regarding ideal and base temperatures, as well as thermal time. The finds offer valuable insights into edamame establishment, potentially paving the way for supporting local edamame production in the U.S. Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. (Copyright © 2024 Li, Liu, Rideout, Rosso, Zhang and Welbaum.)
Databáze:	MEDLINE
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