KOREAN JOURNAL OF CROP SCIENCE (한국작물학회지)
- Volume 44 Issue 1
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- Pages.55-58
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- 1999
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- 0252-9777(pISSN)
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- 2287-8432(eISSN)
Genotypic Variation in Leaf Water Status of Soybean
- Jin, Yong-Moon (National Institute of Agricultural Science and Technology) ;
- Lee, Hong-Suk (Department of Agronomy, Seoul Natl Univ) ;
- Lee, Suk-Ha (Department of Agronomy, Seoul Natl Univ) ;
- Kwon, Yong-Woong (Department of Agronomy, Seoul Natl Univ) ;
- Im, Jeong-Nam (National Crop Experiment Station)
- Published : 1999.03.01
Abstract
Plant water status during growth is directly and indirectly associated with seed yield. The objective of the present study was to determine the genotypic differences in leaf water characteristics at an early growth stage of soybean [Glycine max (L.) Merrill] plants through the pressure-bomb technique. Measurements of water potential as well as relative water content (RWC) were made at the third leaf from the fully-expanded top leaf of eight different soybean genotypes grown for 31 to 35 days after field emergence. On the basis of the modified exponential model, pressure-volume (PV) curves were fitted well (
Keywords
- leaf water potential;
- pressure-volume curve;
- solute potential;
- plasmolysis;
- relative water content;
- maximum elastic module;
- turgor pressure