Growth Analysis of Soybean Seedlings During the Lifespan of the Cotyledons |
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Authors: | HARRIS M; SMITH D L; MACKENDER R O |
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Institution: | Botany Department, The Queen's University Belfast, Northern Ireland BT7 1NN |
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Abstract: | Patterns of seedling growth of Glycine max in light and darknesswere compared during the period from germination to cotyledonabscission. Fitted growth curves and the derived functions,relative growth rate, unit leaf rate, leaf area ratio and specificleaf area, were used to assess the relative importance in seedlinggrowth of cotyledon storage reserves, cotyledon photosynthesisand leaf photosynthesis. The cotyledons are of an intermediatetype with a predominant storage and a minimal photosyntheticfunction. Cotyledon reserves support seedling growth until theprimary leaves expand, after which growth depends on leaf photosynthesis. Glycine max (L.) Merr., soybean, cotyledons, growth analysis, seedling development |
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