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2018 Vol.27, Issue 4 Preview Page
Gibberellin Application Method and Concentration Affect to Growth, Runner, and Daughter Plant Production in ‘Maehyang’ Strawberry during Nursery Period

육묘기 ‘매향’ 딸기의 생육, 런너 및 자묘 생산에 미치는 지베렐린 처리방법 및 농도의 영향

Jae Hyeon Kang1
,
Hyeon Min Kim2
,
Hye Min Kim2
,
Hyeon Woo Jeong2
,
Hye Ri Lee2
,
Hee Sung Hwang1
,
Byoung Ryong Jeong12345*
,
Nam Jun Kang12345
,
Seung Jae Hwang12345*
강 재현1
,
김 현민2
,
김 혜민2
,
정 현우2
,
이 혜리2
,
황 희성1
,
정 병룡12345*
,
강 남준12345
,
황 승재12345*
1Division of Crop Science, Graduate School of Gyeongsang National University, Jinju 52828, Korea
2Division of Applied Life Science, Graduate School of Gyeongsang National University, Jinju 52828, Korea
3Department of Agricultural Plant Science, College of Agriculture & Life Sciences, Gyeongsang National University, Jinju 52828, Korea
4Institute of Agriculture & Life Sciences, Gyeongsang National University, Jinju 52828, Korea
5Research Institute of Life Science, Gyeongsang National University, Jinju 52828, Korea
1경상대학교 대학원 작물생산과학부
2경상대학교 대학원 응용생명과학부
3경상대학교 농업생명과학대학 농업식물과학과
4경상대학교 농업생명과학연구원
5경상대학교 생명과학연구원
*Corresponding author: hsj@gnu.ac.kr
30 November 2018. pp. 407-414
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Abstract

This study was aimed to evaluate the effect of application method and concentration of gibberellin A3 (GA3) on the growth, runner production, and seedling quality of strawberry plants (Fragaria × ananassa Duch. cv. Maehyang) during nursery period. The mother plants of strawberry were transplanted in pot (64 × 27 × 18 cm) filled with commercial growing medium on March 20, 2018. GA3 concentration was applied as 0, 50, 100 or 200 mg·L-1 with spray or drench to 45 mL per plant at 4 weeks after transplanting, respectively. Nutrient solution was supplied with the EC 1.5 dS·m-1 after the transplanting and supplied 350 mL per pot twice a day (15 min per one time) after rooting. The growth characteristics of mother plants of strawberry were measured at 7 weeks after treatment, and growth characteristics of daughter plants of strawberry were measured at 10 weeks after treatment. Runner length and diameter of mother plant was the longest or thickest in the spray with 200 mg·L-1 than the other treatments, respectively. Soil-plant analysis development (SPAD) value of mother plant was the lowest in spray with 200 mg·L-1. However, leaf length, leaf width, and crown diameter showed no significant differences in all treatment among application method and concentration of GA3. As the concentration of GA3 increased, physiological disorder like stretchiness of crown occurred more. The physiological disorder was the most occurred in spray treatment with 200 mg·L-1, but drench treatment occurred less than spray treatment. The number of runners and daughter plants increased with increasing concentration of GA3 regardless of application methods. In the growth characteristics of the daughter plants, leaf length and leaf width of first daughter plant, plant height, crown diameter, leaf area and SPAD value of second daughter plant, and plant height of third daughter plant were the significantly greatest in drench with 100 mg·L-1 treatment. This results indicate that growth and runner production of mother plants and growth of daughter plants of strawberry were the best achieved by drench application in the 100 mg·L-1 GA3.

Keywords
drench
Fragaria × ananassa
GA3
number of runners
spray

본 연구는 육묘기 동안 딸기 ‘매향’(Fragaria × ananassa Duch. cv. Maehyang)의 생육 및 런너 생산과 묘소질에 있어 지베렐린(GA3)의 처리방법과 농도에 대 한 효과를 평가하기 위해 수행되었다. 딸기 모주는 2018 년 3월 20일에 상업적 생육배지로 충진된 포트 (64×27×18cm)에 정식하였다. 정식 후 4주째에 A3의 농도를 0, 50, 100, 200mg·L-1로 식물체당 45mL씩 각각 엽면살포와 배지관주로 처리하였다. 정식 후 배양액의 EC는 1.5dS·m-1로 공급하였고 뿌리 활착 후 1일 2회 포 트 당 350mL(1회당 15분)를 공급했다. 처리 후 7주째에 딸기의 모주의 생육 특성을 측정하였고, 처리 후 10주째 에 딸기 자묘의 생육특성을 측정하였다. 모주의 런너 길 이와 직경은 200mg·L-1의 엽면살포에서 다른 처리구에 비해 각각 가장 길고 두꺼웠다. 모주의 SPAD값은 200mg·L-1의 엽면살포 처리구에서 유의적으로 가장 낮았 다. 그러나 엽장, 엽폭, 크라운 직경은 A3의 처리방법 과 농도에 대한 모든 처리구 간의 유의적인 차이를 보 이지 않았다. A3의 농도가 증가할수록 딸기의 크라운 이 기형적으로 길어지는 생리장해가 나타났다. 200mg·L-1의 엽면살포 처리에서 유의적으로 많은 생리장해가 나 타났으며 배지관주에서는 엽면살포에 비해 적게 나타났 다. 런너와 자묘의 수는 처리방법에 무관하게 A3의 농 도가 높아질수록 증가하였다. 자묘의 생육 특성에서, 첫 번째 자묘의 엽장과 엽폭, 두 번째 자묘의 초장, 크라운 직경, 엽면적과 SPAD 값, 세 번째 자묘의 초장이 100mg·L-1 의 배지관주에서 유의성 있게 가장 우수하였 다. 결과적으로, 딸기 모주의 생육과 런너 생산 및 자묘 의 생육은 GA3 100mg·L-1의 배지관주 처리에서 가장 효과적인 것으로 나타났다.

키워드
런너 수
배지관주
엽면살포
Fragaria × ananassa
A3
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Information
  • Publisher :The Korean Society for Bio-Environment Control
  • Publisher(Ko) :(사)한국생물환경조절학회
  • Journal Title :Protected Horticulture and Plant Factory
  • Journal Title(Ko) :시설원예ㆍ식물공장
  • Volume : 27
  • No :4
  • Pages :407-414
  • Received Date : 2018-10-06
  • Revised Date : 2018-10-23
  • Accepted Date : 2018-10-25
  • DOI :https://doi.org/10.12791/KSBEC.2018.27.4.407
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