Effect of the Cold Treatment Period on a Plant’s Dormancy Breaking in the Winter Production of Gomchwi’s New Varieties (Ligularia fischeri (Ledeb.) Turcz)

다국어 초록 (Multilingual Abstract)

This study was conducted to determine the number of days required to break a plant’s dormancy and promote subsequent crop growth in new varieties of Gomchwi through the 4℃ treatment. Three new varieties of Gomchwi namely, ‘Sammany’, ‘Gommany’, and ‘Damogy’ were observed in this study. The rate of leaf emergence of ‘Sammany’ after 15-day of 4℃ treatment was 100%, while ‘Gommany’, and ‘Damogy’ took 20-days and 10-days, respectively to reach to 97.9% rate of leaf emergence. After 10-days of 4℃ treatment, ‘Damogy’ grew faster than the other varieties. and Harvest time for ‘Damogy’ was on January 18th, after 5-days of 4℃ treatment and yield was observed to be the highest at 15-days of 4℃ treatment. ‘Sammany’ was next with a minimum of 10-days of 4℃ treatment, although 15-days is more preferred for better harvest. ‘Gommany’ on the other hand, did not grow enough for harvest by January 18th, and its harvest time was delayed to January 31st. It needed a minimum of 15-days and preferentially 20-days of 4℃ treatment to grow normally and be ready for harvest. The plant height, leaf length and leaf petiole length appeared to grow better by extending duration of the 4℃ treatment. The number of leaves of ‘Sammany’ and ‘Gommany’ varieties was three leaves for the 5-days treatment which may be due to the incomplete breaking of dormancy. Regarding the yield per plant, ‘Sammany’ yielded 112.3 grams (g) in 15-days treatment, and ‘Gommany’ yielded 106.5 g in 25-days treatment. In the case of ‘Damogy’, it yielded 123.5 g and 183 g in the 10-days and 25-days treatment respectively. It is concluded that ‘Damogy’, ‘Sammany’ and ‘Gommany requires 10, 15, and 20 days of 4℃ treatment to break the plant’s dormancy and promote better plant growth.

참고문헌 (Reference)

1 서종택, "저온처리 기간이 앵초, 설앵초 및 애기나리의 휴면타파에 미치는 영향" 한국자원식물학회 19 (19): 45-5, 2006

2 成基喆, "아스파라거스의 休眠打破에 미치는 低溫經過 時間의 影響" 한국원예학회 43 (43): 699-702, 2002

3 이정현, "아스파라거스 두 전웅 품종의 저온처리에 따른 휴면 타파와 순의 생장에 미치는 영향" 한국원예학회 31 (31): 141-145, 2013

4 이종원, "아스파라거스 4 품종의 생장, 휴면타파, 수량 및 추출물의 생리활성 비교" 한국원예학회 33 (33): 796-804, 2015

5 성기철, "단경기 아스파라거스 생산을 위한 적정 가온시기 구명" (사) 한국생물환경조절학회 21 (21): 276-280, 2012

6 조순덕, "곰취의 식품재료화를 위한 품질특성 및 가공제품에 대한 연구" 한국식품저장유통학회 12 (12): 43-47, 2005

7 서종택, "고품질 내병 다수성 곰취 신품종 ‘다목이’ 육성" 한국자원식물학회 30 (30): 475-480, 2017

8 서종택, "고품질 내병 다수성 곰취 신품종 ‘곰마니’ 육성" 한국자원식물학회 29 (29): 625-629, 2016

9 Yoo, S. O., "Effect of low temperature and period on dormancy breaking in Butterbur (Petasites japonicas MAX.)" 16 (16): 431-, 1998

10 Suh, J. T., "Effect of accumulative hours of low temperature and foliar spray of GA3 on growth and yield of Ligularia fischeri Turcz. in protected cultivation during winter season" 38 : 468-472, 1996

11 Yoo, S. O., "Dormancy breaking and dormancy characteristics for early production of Udo (Aralia cordat THUNB.)" 18 (18): 167-, 2000

12 서종택, "Development of ‘Sammany’, a New Variety of Gomchwi with Powdery Mildew Resistance and High Yield" 한국자원식물학회 31 (31): 714-718, 2018