Proceedings of the Korean Society of Crop Science Conference (한국작물학회:학술대회논문집)
- 2017.06a
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- Pages.239-239
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- 2017
Elucidation of the physiological basis related to high photosynthetic capacity of soybean local variety, 'Peking'.
- Sakoda, Kazuma (Graduate School of Agriculture, Kyoto University) ;
- Suzuki, Seita (Graduate School of Agriculture, Kyoto University) ;
- Tanaka, Yu (Graduate School of Agriculture, Kyoto University) ;
- Shiraiwa, Tatsuhiko (Graduate School of Agriculture, Kyoto University)
- Published : 2017.06.04
Abstract
The enhancement of leaf photosynthetic capacity can have the potential to improve the seed yield of soybean. Key targets for the increase of leaf photosynthetic capacity remains unclear in soybean. Peking, Chinese local variety, has been the useful material for soybean breeding since it shows various resistances against biotic and abiotic stress. Sakoda et al., 2017 reported that Peking had the higher capacity of leaf photosynthesis than Enrei, Japanese elite cultivar. They identified the genetic factors related to high photosynthetic capacity of Peking. The objective of this study is to elucidate the physiological basis underlying high photosynthetic capacity of Peking. Peking and Enrei were cultivated at the experimental field of the Graduate School of Agriculture, Kyoto University, Kyoto, Japan. The sowing date was July 4, 2016. Gas exchange parameters were evaluated at the uppermost fully expanded leaves on 43, 49, and 59 days after planting (DAP) with a portable gas exchange system, LI-6400. The leaf hydraulic conductance,