Effect of genotypes on soyabean seed quality development under West African Rainfed conditions
Effect of genotypes on soyabean seed quality development was monitored under rainfed conditions at Abeokuta between July and November, 1997. A consistent increase in rate of normal germination and seedling emergence occurred among early harvests. Greatest germination rate was detected in seeds har...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Universiti Putra Malaysia Press
2001
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| Online Access: | http://psasir.upm.edu.my/id/eprint/3292/1/Effect_of_Genotypes_on_Soyabean_Seed_Quality_Development.pdf http://psasir.upm.edu.my/id/eprint/3292/ http://www.pertanika.upm.edu.my/Pertanika%20PAPERS/JTAS%20Vol.%2024%20(2)%20Sep.%202001/09%20JTAS%20Vol.24%20(2)%202001%20(Pg%20139-145).pdf |
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| Summary: | Effect of genotypes on soyabean seed quality development was monitored under rainfed conditions at Abeokuta
between July and November, 1997. A consistent increase in rate of normal germination and seedling emergence
occurred among early harvests. Greatest germination rate was detected in seeds harvested around physiological
(functional) and harvest (full) maturity stages. Seedling emergence was significantly influenced by seed harvest
date in all soyabean entries. Germination and emergence increased as soyaben seed development progressed and
was greatest for seeds harvested between R7 and R8 in all soyabean cultivars. Enforced desiccation to 10%
moisture content promoted germination of seeds harvested around physiological maturity stages. The onset of
desiccation tolerance fell between physiological and harvest maturity stages in all the six soyabean cultivars. The rapid decline in seedling emergence of artifically dried seeds at 50d after mtff as against 60d after mtff for normal
laboratory gemination indicated that seedlots of initial good germination may not necessarily produce high
seedling emergence under good seeding condition due to differences in genotypes. Association of seed characters
such as seed size, seed weight, germinability and emergence ability is essential in soyabean breeding to facilitate
selection of genotypes with good seed quality, thereby reducing elaborate storage and screening methods. |
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