한국 콩 29품종의 물 소모량에 대한 수분이용효율 산정
Determination of Water Use Efficiency on the Amount of Water Use
1
조회
0
다운로드
3
인용
0
참고문헌
키워드
초록
Water use efficiency (WUE) is considered as an important characteristics of drought tolerance in crop plant. Thisstudy was carried out for determination of WUE of 29 Korean soybean cultivars including PI416937, a representative droughttolerant cultivar in USA, under two different soil water contents, the sustaining 50% of maximum field capacity on control and25% on drought treatment for 14 days at the late of vegetative growth stage. The WUE of whole plant (g/L) was determinedusing the measurement of the amount of water use (mL/day/plant), dry weight (g/plant), and relative growth rate (RGR) at 14days after treatment (DAT). The mean amount of water use of 30 soybeans was 183 and 64 mL/plant/day at control andtreatment, respectively, which was decreased 63% of water use under 25% of maximum field capacity. The mean dry weightof 30 soybeans of treatment was decreased 37% compared with that of control. The amount of water use of 30 soybeans washighly correlated with dry weight at 14 DAT, while it was weak correlated with RGR of treatment and not correlated with WUE. The WUE was highly correlated with RGR at control and treatment. The mean WUE of 30 soybean was 2.1 and 2.9g/L atcontrol and treatment, respectively. It means that WUE is increased under drought condition and is the variable characteristicsdepend on soil water content. The WUE of PI416937 was 3.5g/L at treatment. This study suggested WUEs of 29 Koreansoybean cultivars and that the higher WUE Korean cultivars than PI416937 were 3 cultivars, Daepoong (3.8g/L), Danbeak(4.0g/L), and Keumkang (3.8g/L).
Abstract
Water use efficiency (WUE) is considered as an important characteristics of drought tolerance in crop plant. Thisstudy was carried out for determination of WUE of 29 Korean soybean cultivars including PI416937, a representative droughttolerant cultivar in USA, under two different soil water contents, the sustaining 50% of maximum field capacity on control and25% on drought treatment for 14 days at the late of vegetative growth stage. The WUE of whole plant (g/L) was determinedusing the measurement of the amount of water use (mL/day/plant), dry weight (g/plant), and relative growth rate (RGR) at 14days after treatment (DAT). The mean amount of water use of 30 soybeans was 183 and 64 mL/plant/day at control andtreatment, respectively, which was decreased 63% of water use under 25% of maximum field capacity. The mean dry weightof 30 soybeans of treatment was decreased 37% compared with that of control. The amount of water use of 30 soybeans washighly correlated with dry weight at 14 DAT, while it was weak correlated with RGR of treatment and not correlated with WUE. The WUE was highly correlated with RGR at control and treatment. The mean WUE of 30 soybean was 2.1 and 2.9g/L atcontrol and treatment, respectively. It means that WUE is increased under drought condition and is the variable characteristicsdepend on soil water content. The WUE of PI416937 was 3.5g/L at treatment. This study suggested WUEs of 29 Koreansoybean cultivars and that the higher WUE Korean cultivars than PI416937 were 3 cultivars, Daepoong (3.8g/L), Danbeak(4.0g/L), and Keumkang (3.8g/L).
참고문헌 (13)
- Condon AG, "Breeding for high water-use efficiency", J. Exp. Bot, 55, pp.2447~2460 (2004)
- Fletcher AL, "Transpiration responses to vapor pressure deficit in well watered ‘slowwilting’and commercial soybean", Environ. Exp. Bot, 61, pp.145~151 (2007)
- Goldman IL, "Differential genotypic response to drought stress and subsoil aluminum in soybean", Crop Sci, 29, pp.330~334 (1989)
- Hudak CM, "Vegetative growth analysis of a drought-resistant soybean plant introduction", Crop Sci, 35, pp.464~471 (1996)
- Hufstetler EV, "Genotypic variation for three physiological traits affecting drought tolerance in soybean", Crop Sci, 47, pp.25~35 (2007)
- King CA, "Differential wilting among soybean genotypes in response to water deficit", Crop Sci, 49, pp.290~298 (2009)
- Liu F, "Stomatal control and water use efficiency of soybean (Glycine max L. Merr.) during progressive soil drying", Environ. Exp. Bot, 54, pp.33~40 (2005)
- Manavalan LP, "Physiological and molecular approaches to improve drought resistance in soybean", Plant Cell Physiol, 50, pp.1260~1276 (2009)
- Mian MAR, "Molecular markers associated with water use efficiency and leaf ash in soybean", Crop Sci, 36, pp.1252~1257 (1996)
- Annual report of experimental research of Institute of Crop Science, "RDA", 282~285 (2005)
- Sadok W, "Genetic variability of transpiration response to vapor pressure deficit among soybean cultivars", Crop Sci, 49, pp.955~960 (2009)
- Sinclair TR, "Assessment across the United States of the benefits of altered soybean drought traits", Agron. J, 102, pp.475~482 (2010)
- Sloane RJ, "Field drought tolerance of a soybean plant introduction", Crop Sci, 30, pp.118~123 (1990)