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Related Experiment Video

Updated: Jun 13, 2026

Soybean Hairy Root Transformation for the Analysis of Gene Function

Soybean Hairy Root Transformation for the Analysis of Gene Function

Published on: May 5, 2023

Soybean tocopherol concentrations are affected by crop management.

Philippe Seguin¹, Gilles Tremblay, Denis Pageau

¹Department of Plant Science, McGill University, Sainte-Anne-de-Bellevue, Québec, Canada. philippe.seguin@mcgill.ca

Journal of Agricultural and Food Chemistry

|April 21, 2010

Summary

Optimizing soybean (Glycine max) crop management, including seeding date and row spacing, can enhance tocopherol concentrations, particularly alpha-tocopherol, for the functional food market.

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Soybean Hairy Root Transformation for the Analysis of Gene Function

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A Simple Method for Isolation of Soybean Protoplasts and Application to Transient Gene Expression Analyses

A Simple Method for Isolation of Soybean Protoplasts and Application to Transient Gene Expression Analyses

Published on: January 25, 2018

Area of Science:

Agricultural Science
Plant Science
Nutritional Science

Background:

Soybeans are a key dietary source of tocopherols, compounds with significant health benefits.
While environmental factors influence tocopherol levels, the specific impact of crop management strategies requires further investigation.

Purpose of the Study:

To evaluate how various agronomic practices affect tocopherol concentrations in soybeans.
To identify optimal management strategies for maximizing tocopherol content in soybeans for the functional food market.

Main Methods:

Field experiments were conducted over two years at three Quebec locations.
Tocopherol concentrations (total, alpha-, gamma-, delta-) were quantified using high-performance liquid chromatography.
The study assessed the effects of seeding rate, row spacing, seeding date, cultivar, and phosphorus (P) and potassium (K) fertilization.

Main Results:

Alpha-tocopherol concentrations were most responsive to management factors, with mid- to late-May seeding yielding 45% higher levels compared to later dates.
Wider row spacing (>36 cm) and a seeding rate of 40 seeds/m² also positively influenced alpha-tocopherol.
Environmental conditions and soybean cultivar significantly impacted tocopherol profiles, while P and K fertilization showed negligible effects.

Conclusions:

Soybean tocopherol concentrations are significantly influenced by specific crop management practices, particularly seeding date and row spacing.
Agronomic recommendations should be tailored to optimize tocopherol production for the functional food industry.
Cultivar selection and environmental factors play a crucial role in determining soybean tocopherol content.