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Agronomic and pod traits in relation to pod shattering in cultivated soybeans

Author

Listed:
  • Bingjie Tu

    (College of Geography and Tourism, Harbin University, Heilongjiang Province, Harbin, P.R. China
    Key Laboratory of Heilongjiang Province Cold Region Wetland Ecology and Environment Research, Harbin, P.R. China)

  • Qingying Zhang

    (State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin, P.R. China)

  • Xiaobing Liu
  • Shaopeng Yu

    (College of Geography and Tourism, Harbin University, Heilongjiang Province, Harbin, P.R. China
    Key Laboratory of Heilongjiang Province Cold Region Wetland Ecology and Environment Research, Harbin, P.R. China)

  • Nan Xu

    (College of Geography and Tourism, Harbin University, Heilongjiang Province, Harbin, P.R. China
    Key Laboratory of Heilongjiang Province Cold Region Wetland Ecology and Environment Research, Harbin, P.R. China)

  • Jia Liu

    (College of Geography and Tourism, Harbin University, Heilongjiang Province, Harbin, P.R. China
    Key Laboratory of Heilongjiang Province Cold Region Wetland Ecology and Environment Research, Harbin, P.R. China)

  • Changkai Liu

    (State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin, P.R. China)

Abstract

Pod dehiscence or pod shattering from mature soybean (Glycine max L.) is one of the most outstanding disadvantages in domesticated cultivars. Pod shattering in relation to 16 quantitative traits and 3 qualitative traits among 140 cultivars of vegetable soybeans, grain soybeans and small-grain soybeans was evaluated over two years. We found the pod shattering percentage is positively correlated with the number of productive branches, pod width, pod length, pod area, 100-seed weight, 1-seeded-pod percentage, 2-seeded-pod percentage and seed protein content, but negatively correlated with the plant height, pod height at the bottom, number of nodes on the main stem, 3-seeded-pod percentage, 4-seeded-pod percentage and seed oil content. The pod shattering percentage in vegetable soybeans is remarkably high, reaching up to 93%, 7.8 times higher than that of grain soybeans. A schematic model of the characteristics for shatter-susceptible and shatter-resistant soybean cultivars is proposed. The pod shattering in vegetable soybeans is related to the "umbrella-shaped" architecture and pod size. It is suggested to select lines with more 2-seeded and 3-seeded pods for vegetable soybeans, but a higher seed oil content and greater node number on the main stem for grain soybeans and small-grain soybeans, to avoid pod shattering in future breeding programmes.

Suggested Citation

  • Bingjie Tu & Qingying Zhang & Xiaobing Liu & Shaopeng Yu & Nan Xu & Jia Liu & Changkai Liu, . "Agronomic and pod traits in relation to pod shattering in cultivated soybeans," Czech Journal of Genetics and Plant Breeding, Czech Academy of Agricultural Sciences, vol. 0.
    • Handle: RePEc:caa:jnlcjg:v:preprint:id:119-2024-cjgpb
    DOI: 10.17221/119/2024-CJGPB
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