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The Correlation between Stem Characteristics and Its Resistance to Hail Damage in Potato Cultivars

우박저항성과 관련된 감자품종의 줄기 특성

  • Jin, Yong-Ik (Highland Agriculture Research Center, National Institute of Crop Science, RDA) ;
  • Chang, Dong-Chil (Highland Agriculture Research Center, National Institute of Crop Science, RDA) ;
  • Cho, Ji-Hong (Highland Agriculture Research Center, National Institute of Crop Science, RDA) ;
  • Cho, Kwang-Soo (Highland Agriculture Research Center, National Institute of Crop Science, RDA) ;
  • Im, Ju-Sung (Highland Agriculture Research Center, National Institute of Crop Science, RDA) ;
  • Hong, Su-Young (Highland Agriculture Research Center, National Institute of Crop Science, RDA) ;
  • Kim, Su-Jeong (Highland Agriculture Research Center, National Institute of Crop Science, RDA) ;
  • Sohn, Whang-Bae (Highland Agriculture Research Center, National Institute of Crop Science, RDA) ;
  • Manjulatha, Mekapogu (Highland Agriculture Research Center, National Institute of Crop Science, RDA) ;
  • Park, Kyeong-Hun (Department of Herbal Crop Research, National Institute of Horticultural & Herbal Science, RDA) ;
  • Kim, Yul-Ho (Highland Agriculture Research Center, National Institute of Crop Science, RDA) ;
  • Yoo, Hong-Seob (Highland Agriculture Research Center, National Institute of Crop Science, RDA) ;
  • Jeong, Jin-Cheol (Highland Agriculture Research Center, National Institute of Crop Science, RDA) ;
  • Chung, Ill-Min (Department of Applied Bioscience, College of Life and Environmental Science, Konkuk University)
  • 진용익 (농촌진흥청 국립식량과학원 고령지농업연구센터) ;
  • 장동칠 (농촌진흥청 국립식량과학원 고령지농업연구센터) ;
  • 조지홍 (농촌진흥청 국립식량과학원 고령지농업연구센터) ;
  • 조광수 (농촌진흥청 국립식량과학원 고령지농업연구센터) ;
  • 임주성 (농촌진흥청 국립식량과학원 고령지농업연구센터) ;
  • 홍수영 (농촌진흥청 국립식량과학원 고령지농업연구센터) ;
  • 김수정 (농촌진흥청 국립식량과학원 고령지농업연구센터) ;
  • 손황배 (농촌진흥청 국립식량과학원 고령지농업연구센터) ;
  • 만줄라타 메타포구 (농촌진흥청 국립식량과학원 고령지농업연구센터) ;
  • 박경훈 (농촌진흥청 국립원예특작과학원 인삼특작부) ;
  • 김율호 (농촌진흥청 국립식량과학원 고령지농업연구센터) ;
  • 유홍섭 (농촌진흥청 국립식량과학원 고령지농업연구센터) ;
  • 정진철 (농촌진흥청 국립식량과학원 고령지농업연구센터) ;
  • 정일민 (건국대학교 생명환경과학대학 응용생물과학과)
  • Received : 2014.08.28
  • Accepted : 2014.10.15
  • Published : 2014.12.31

Abstract

BACKGROUND: Recently, weather disasters such as hail and typhoon occur frequently. These threaten the stable cultivation of potatoes. It is very important to cultivate potatoes with stable under unexpected weather disasters. This study was performed to investigate the correlation between mophological characteristics of potato stem and its resistance to hail damage in different potato cultivars. METHODS AND RESULTS: Hail fall occurred for 8 minutes on May 31, 2012 in the field of Highland Agriculture Research Center located in Jinbu-myeon Gangwon-do. Potato crop grown in the field was affected by hail due to which the stems of potato were broken. The percentage of broken stem of potato was investigated as the level of damage by hail. To determine the difference in the ratio of broken stem among the potato cultivars, physical characteristics of potato stem such as diameter and hardness were measured. To evaluate recovery phase after hail damage, ground coverage and yield were measured. The percentage of broken stem of cv. Goun and cv. Saebong were 30%, 26%, respectively, whereas it was 5% in the cv. Atlantic. Damage by hail was the lowest in cv. Atlantic. Diameter of the stem was 15 mm in cv. Atlantic, 13 mm in cv. Goun and 11 mm in cv. Saebong. The hardness of potato cultivars was measured which was 74 N in cv. Atlantic. 71 N in cv. Goun and 59 N in cv. Saebong. The ground coverage in cv. Atlantic was 79%, which was the highest followed by 73% in cv. Saebong and 56% in cv. Goun. The yield of cv. Atlantic was monitored at 90 days after planting which was 40 MT/ha and that of cv. Saebong was 36 MT/ha, whereas in cv. Goun, it was 30 MT/ha which was the lowest. CONCLUSION: The ratio of broken stem in cv. Atlantic was the lowest compared to cultivars. In the physical characteristics of stem, cv. Atlantic was the highest in value of diameter and hardness. Based on these results, it was considered that cv. Atlantic was resistant to hail damage compared to other cultivars.

최근 기상재해가 빈번하게 발생하고 있다. 우박이나 태풍은 감자의 안정적이 재배에 위협적인 요인이다. 이렇듯 돌발적인 기상재해에 감자를 안정적으로 재배하는 것은 중요하다. 따라서 본 연구는 감자품종별 감자 줄기 특성이 우박에 대한 저항성은 어떠한 관계가 있는지 구명하기 위하여 수행되었다. 부러진 줄기의 비율에서 '대서' 품종은 5%, '고운' 품종은 30%, '새봉' 품종은 26%였다. '대서' 품종은 다른 품종에 비하여 우박에 의한 피해가 가장 적었다. 줄기의 물리적 특성을 측정한 결과 '대서' 품종이 높았다. '대서' 품종의 줄기의 직경은 15mm, '고운' 품종은 13mm, '새봉' 품종은 11 mm 이었다. '대서' 품종의 줄기 경도는 평균 74 N, '고운'품종은 71 N, '새봉' 품종은 59 N 이었다. 우박 피해 당시 토양피복도는 '대서' 품종이 79%의 피복도로 가장 높았고, '고운' 품종은 56% 정도로 가장 적었다, '새봉' 품종은 73%였다. 파종 후 90일째 조사한 수량성은 '대서'가 40 MT/ha '고운'은 30 MT/ha '새봉'은 36 MT/ha이었다.

Keywords

References

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