Salt stress is one of major restrictions for the production of lettuce. In order to identify promising lettuce genotypes having tolerance against salt stress, effect of different sodium chloride (NaCl) concentrations (0, 100, and 200 mM) on electrolyte leakage and growth of thirty-two lettuce landraces from Korea was evaluated. Screening salt tolerant genotypes based on cluster analysis using data of electrolyte leakage discriminated 'IT105183' and 'IT195057' as the most salt tolerant landraces. More importantly, salinity significantly reduced growth of lettuce, but the reduction rates of growth caused by salt stress in salt-tolerant genotypes were much smaller than those in salt-sensitive genotypes. These results indicate that 'IT105183' and 'IT195057' have high potential for being used as parents to improve salt tolerance in other lettuce cultivars.

서 언
 재료 및 방법
  공시재료
  NaCl 처리 조건에서의 전해질 누출 함량 및 엽록소 함량 검정
  NaCl 처리 조건에서의 생육 특성
  통계분석
 결과 및 고찰
 적 요
 REFERENCES

• 허재윤(강원대학교 농업생명과학연구원) | Jae-Yun Heo
• 이창호(강원대학교 원예학과) | Chang-Ho Lee
• 정성호(강원대학교 원예학과) | Seong-Ho Jeong
• 최한률(강원대학교 원예학과) | Han-Ryul Choi
• 이성은(강원대학교 원예학과) | Seong-Eun Lee
• 박성민(강원대학교 원예학과) | Sung-Min Park Corresponding author