한국작물학회지 (KOREAN JOURNAL OF CROP SCIENCE)

  • 제48권4호
  • /
  • Pages.339-344
  • /
  • 2003
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  • 0252-9777(pISSN)
  • /
  • 2287-8432(eISSN)
한국작물학회 (The Korean Society of Crop Science)
권호 표지

Evaluation and classification of selected rice varieties for salinity tolerance at seedling stage

  • Lee, Seung-Yeob (Institute of Life Science and Natural Resources, Division of Plant Resources Science, Wonkwang University) ;
  • Ahn, Jeong-Ho (Institute of Life Science and Natural Resources, Division of Plant Resources Science, Wonkwang University) ;
  • Kwon, Tae-Oh (Institute of Life Science and Natural Resources, Division of Plant Resources Science, Wonkwang University)
  • 발행 : 2003.09.01
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초록

To identify the new source of breeding materials for rice salt tolerance, the salinity tolerance of thirty-four varieties was evaluated under 0.5% saline condition at seedling stage. The salinity score showed highly significant correlations to dry weight and dead leaf ratio. The tested varieties were classified into three groups by visual score, reduction ratio of dry weight, and dead leaf ratio. Eighteen varieties were classified as the highly tolerant group (salinity scores of 1.3-3.7), seven varieties were fallen into the tolerant group (salinity scores of 4.2-5.8), and others were susceptible (salinity scores of 6.7-9.0). In highly tolerant group, most indica varieties including Getu, Dikwee and Kuatic Putic, didn't exsert a panicle under the Korean climate. But six varieties, Xiangcho V, Annapuruna, HP 3319-2wx-6-3-1, Giza 175, and GZ 2447-S-17, GZ 4255-6-3 were suitable to the Korean climate, and their heading date (6-16, August) and culm length (65-78㎝) were similar to the Korean varieties. Accordingly, these varieties can be utilized as crossing materials for the salt tolerance in japonica rice.

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참고문헌

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