Growth of Mother Plants and Occurrence of Daughter Plants of ‘Maehyang’ Strawberry as Affected by Different EC Levels of Nutrient Solution during Nursery Period

Hyeon Min Kim; Hye Min Kim; Hyeon Woo Jeong; Hye Ri Lee; Byoung Ryong Jeong; Nam Jun Kang; Seung Jae Hwang

doi:10.12791/KSBEC.2018.27.2.185

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2018 Vol.27, Issue 2 Preview Page

Growth of Mother Plants and Occurrence of Daughter Plants of ‘Maehyang’ Strawberry as Affected by Different EC Levels of Nutrient Solution during Nursery Period 양액 EC 농도에 따른 육묘기 ‘매향’ 딸기 모주의 생육 및 자묘 발생

30 April 2018. pp. 185-190

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Abstract

This study was conducted to investigate the optimum electrical conductivity (EC) levels of nutrient solution for growth of mother plants and increasing occurrence of daughter plants of strawberry (Fragaria ×ananassa Duch. cv. Maehyang) using hydroponics. The mother plants of strawberry were transplanted in cultivation pot (61 × 27 × 18 cm) filled with coir medium on March 22, 2017. Nutrient solution was supplied by the drip tape at 0.6 dS·m^-1 of EC levels for rooting during 11 days. After rooting, the mother plants of strawberry was treated at the EC levels of 0.6, 1.2 or 1.8 dS·m^-1, respectively. Growth characteristics, such as mother plants and daughter plants of strawberry were measured at 100 days after transplanting. The plant height of mother plant was significantly higher at 0.6 dS·m^-1 treatment, and the crown diameter of mother plant was significantly greater at 1.8 dS·m^-1 treatment. The fresh and dry weights of shoot were higher at both 0.6 and, 1.2 dS·m^-1 treatments. The number of runners was not significantly different in all treatments. The fresh and dry weights of runner were heavier at 0.6 dS·m^-1 than other treatments. The number of daughter plants was the highest, 16.7 at the 1.2 dS·m^-1 treatment. However, the fresh and dry weights of third daughter plant were the heaviest at 0.6 dS·m^-1 treatment. Although the daughter plants were a large of production at 1.2 dS·m^-1 treatment, the low EC levels of strawberry were positive in terms of seedling quality during nursery. These results indicated that growth of mother plant and occurrence of daughter plants were greater at the EC 0.6 dS·m^-1 nutrient solution for hydroponic cultivation of ‘Maehyang’ strawberry during nursery period.

Keywords

electrical conductivity

Fragaria × ananassa

hydroponics

seedling quality

본 연구는 딸기 ‘매향’ (Fragaria× ananassa Duch. cv. Maehyang)의 수경재배를 이용하여 모주의 생육과 자묘 생산량 증대를 위한 최적 배양액 공급 농도 구명 을 위해 수행되었다. 딸기 모주를 2017년 3월 22일 코 코피트가 충진된 딸기 재배용 포트(64 × 27 × 18cm)에 정식하였다. 배양액은 뿌리 활착을 위해 11일 동안 EC 수준을 0.6dS·m^-1의 농도로 점적 테이프를 이용하여 공 급하였다. 뿌리 활착 후, 딸기 모주의 EC를 각각 0.6, 1.2, 1.8dS·m^-1의 수준으로 처리해주었다. 정식 후 100일 째에 딸기의 모주와 자묘의 생육 특성을 측정하였다. 모 주의 초장은 EC 0.6dS·m^-1처리에서 유의적으로 높았고, 모주의 크라운 직경은 EC 1.8dS·m^-1처리에서 유의성 있게 두꺼웠다. 지상부와 러너 생체중 및 건물중 모두 EC 0.6, 1.2dS·m^-1처리에서 유의적으로 높았다. 런너의 개수는 모든 처리구에서 유의적인 차이를 보이지 않았다. 자묘 수는 EC 1.2dS·m^-1처리에서 16.7개로 가장 높은 값을 나타냈다. 그러나 딸기 세 번째 자묘의 생체중 및 건물 중은 0.6dS·m^-1처리에서 가장 높았다. 딸기 자묘 수는 1.2dS·m^-1처리에서 가장 많이 생산되었지만, 육묘기간 동안 딸기의 묘소질 측면에서는 낮은 EC 수준이 긍정적 인 결과를 보였다. 결과적으로, ‘매향’ 딸기의 육묘기간 동안 수경 재배용 배양액의 EC 수준을 0.6dS·m^-1로 공 급하는 것이 모주의 생육 및 자묘 생산에 가장 효과적 인 것으로 나타났다.

키워드

묘소질

수경재배

전기전도도

Fragaria × ananassa

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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 :2
Pages :185-190
Received Date : 2018-03-06
Revised Date : 2018-04-27
Accepted Date : 2018-04-29
DOI :https://doi.org/10.12791/KSBEC.2018.27.2.185

Journal of Bio-Environment Control ISSN:1229-4675(Print) 2765-3641(Online) 생물환경조절학회지

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