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| DOI: | 10.5660/WTS.2016.5.4.181 |
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| Web URL(s): | http://ocean.kisti.re.kr/downfile/volume/ksws/JDHHCQ/2016/v5n4/JDHHCQ_2016_v5n4_181.pdf
Last checked: 07/12/2017
Requires: PDF Reader |
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| Publication Type:
| Refereed |
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| Author(s): | Park, Seon-Ju;
Yu, Hye-Jin;
Yook, Min-Jung;
Kim, Do-Soon |
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| Author Affiliation: | Department of Plant Science, Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Gwanak-gu, Seoul, Korea |
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| Title: | Adaptive diversity of Echinochloa species to osmotic stress |
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| Source: | Weed and Turfgrass Science. Vol. 5, No. 4, December 2016, p. 181-186. |
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| Publishing Information: | Korea: The Korean Society of Weed Science and Turfgrass Society of Korea |
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| # of Pages: | 6 |
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| Keywords: | TIC Keywords: Adaptability; Cultivar evaluation; Cultivar variation; Echinochloa; Osmotic stress; Root growth; Shoot growth; Variety trials
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| Abstract/Contents: | "Three Echinochloa species inhabit various crop fields with different soil moisture conditions. Therefore, a growth pouch test was conducted to investigate adaptive diversity of six Echinochloa species, three from Korea and three from USA, to osmotic stress by assessing shoot and root growths. Echinochloa crus-galli var. praticola showed the greatest tolerance to osmotic stress in both root (GR50=1316.3 g PEG L-1) and shoot (GR50=212.2 g PEG L-1) growths, while Korean E. oryzicola was most sensitive to osmotic stress in both root (GR50=116 g PEG L-1) and shoot (GR50=126.2 g PEG L-1) growths. Root to shoot (R/S) ratio of Echinochloa crus-galli var. praticola increased with increasing osmotic stress, while that of Korean E. oryzicola decreased, suggesting that R/S ratio is closely related to osmotic stress tolerance in Echinochloa species. Our results clearly demonstrate that E. crus-galli var. praticola maintains high R/S ratio even under high osmotic stress, which enables this species to well adapt to dry upland condition. In contrast, while E. oryzicola fails to maintain sufficiently high R/S ratio, resulting in poor adaptability to dry upland condition." |
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| Language: | English |
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| References: | 22 |
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| Note: | Figures
Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Park, S.-J., H.-J. Yu, M.-J. Yook, and D.-S. Kim. 2016. Adaptive diversity of Echinochloa species to osmotic stress. Weed and Turfgrass Science. 5(4):p. 181-186. |
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| DOI: 10.5660/WTS.2016.5.4.181 |
| Web URL(s):
http://ocean.kisti.re.kr/downfile/volume/ksws/JDHHCQ/2016/v5n4/JDHHCQ_2016_v5n4_181.pdf
Last checked: 07/12/2017
Requires: PDF Reader |
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