Lignin monomeric composition in soybean seed coats and resistance to mechanical damage

Review Agronomy

Importance of the lignin content in the pod wall and seed coat on soybean seed physiological and health performances

Francisco Carlos Krzyzanowski et al.

Summary: The effects of lignin on soybean seed quality have been extensively studied since the early 1990s. Higher lignin content in the seed coat and pod wall is associated with improved resistance to mechanical damage and stress caused by weathering, leading to higher seed quality. Colored soybean seeds with higher lignin content in the seed coat and the presence of anthocyanin also contribute to improved seed quality. The role of boron in lignin synthesis is also emphasized in this review.

JOURNAL OF SEED SCIENCE (2023)

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Article Agriculture, Multidisciplinary

Structural analysis of soybean pods and seeds subjected to weathering deterioration in pre-harvest

Cristian Rafael Brzezinski et al.

Summary: The objective of this study was to analyze the structural characteristics of soybean pods and seed coats and investigate the effect of pre-harvest weathering on seed quality. Results showed that rainfall before harvest reduced the quality of soybean seeds, but the response to weathering varied among cultivars. Pods with thicker exocarp, mesocarp, and endocarp as well as higher lignin content exhibited greater resistance to weathering and resulted in seeds with higher vigor and viability. The thickness of the testa hypodermis was also related to resistance to weathering and the production of high-quality seeds.

PESQUISA AGROPECUARIA BRASILEIRA (2022)

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Article Chemistry, Multidisciplinary