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Physiological Response, Fatty Acid Composition and Yield Component of Brassica napus L. under Short-term Waterlogging  

Ku, Yang-Gyu (Department of Plant Biotechnology, Bioenergy Research Institute, College of Agriculture and Life Science, Chonnam National University)
Park, Won (Department of Plant Biotechnology, Bioenergy Research Institute, College of Agriculture and Life Science, Chonnam National University)
Bang, Jin-Ki (Bioenergy Crop Research Center, National Institute of Crop Science, Rural Development Administration)
Jang, Young-Seok (Bioenergy Crop Research Center, National Institute of Crop Science, Rural Development Administration)
Kim, Yong-Beom (Department of Ginseng and Herbal Crop Research, National Institute of Horticultural & Herbal Science, Rural Development Administration)
Bae, Hyun-Jong (Wood Science and Technology, BK21 Program, College of Agriculture and Life Science, Chonnam National University)
Suh, Mi-Chung (Department of Plant Biotechnology, Bioenergy Research Institute, College of Agriculture and Life Science, Chonnam National University)
Ahn, Sung-Ju (Department of Plant Biotechnology, Bioenergy Research Institute, College of Agriculture and Life Science, Chonnam National University)
Publication Information
Journal of Bio-Environment Control / v.18, no.2, 2009 , pp. 142-147 More about this Journal
Abstract
The effects of short-term waterlogging on physiological responses, fatty acid compositions and yield components of rapeseed at both the vegetative growth and the reproductive growth stages were assessed in this study. Waterlogged plants were treated for a period of 10 days at the vegetative growth stage and 4 days at the reproductive growth stage. The results show that photosynthesis and stomatal conductance at both the vegetative growth and the reproductive growth stage were significantly reduced during the waterlogging period and after the recovery period. When the plants were removed from water, photosynthesis and stomatal conductance progressively restored similar values to those of control plants within $2{\sim}3$ days. Fatty acid compositions were unaffected by waterlogging treatment. However, yield components (pod number and pod length) of the waterlogged treated plants at the reproductive growth stage were significantly reduced. These results suggest that short-term waterlogging may thus influence oilseed yield component.
Keywords
oleic acid; photosynthesis; soil water content; waterlogging period;
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