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2017 Vol.26, Issue 3 Preview Page
Effect of Various Composition of Nutrient Solution on Growth and Yield of Strawberry ‘Maehyang’ in Coir Substatrate Hydroponics

다양한 배양액 조성이 코이어 수경재배 딸기‘매향’의 생육과 수량에 미치는 영향

Jeong Hun Lee1
,
Yong-Beom Lee1
,
Ki Young Choi2*
이 정훈1
,
이 용범1
,
최 기영2*
1Department of Environmental Horticulture, University of Seoul, 90 Jeonnong-dong, Dongdaemun-gu, Seoul 02504, Korea
2Department of Controlled Agriculture, Kangwon National University, 1 Kangwondae-gil, Chuncheon, Korea
1서울시립대학교 환경원예학과
2강원대학교 시설농업학과
*Corresponding author: choiky@kangwon.ac.kr
30 July 2017. pp. 227-234
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Abstract

This study aimed to investigate the nutrient solution developed by based on nutrient-water absorption rate of strawberry ‘Maehyang’ by comparing growth and yield for 8 months with 5 kinds of nutrient solution with different ion composition. Strawberry plants were planted at elevated bed and supplied with five kinds of nutrient solutions (RDA), Yamazaki, PBG, University of Seoul (UOS) and NewUOS from one month onwards. Five types of nutrient solution were supplied to the strawberry plants associated with EC 1.0dS·m-1, pH 6.0, 150~300mL ·plant-1 per day. At 60 days after planting, leaf width and leaf petiole of the strawberry plants showed significant differences among nutrient solution types and photosynthesis was higher in RDA and NewUOS nutrient solution and lower in PBG nutrient solution. The EC of the drainage on vegetative growth stage was 0.7~0.8dS·m-1, which is lower than the supplied EC level, and to 1.0-1.2dS·m-1, afterwards. The pH of the drainage was higher in Yamzaki solution as 6.2~6.8, while the pH of the UOS nutrient solution was lower in 5.1~5.2. Nitrate content was most absorbed in vegetative growth stage and after flower clusters development. The potassium uptake was highest at the NewUOS followed by UOS and Yamazaki nutrient solution. At six months after -planting fresh weight and dry weight of shoot and root were higher in UOS and NewUOS nutrient solution than other nutrient solutions, and the dry matter ratio was lower at 43.5% in Yamazaki nutrient solution and 30.6% in NewUOS nutrient solution than other solutions. Length, width, weight, and sugar content of the strawberries harvested from December to February were unaffected by treatment, but yield was higher in NewUOS nutrient solution due to increasing fruit number and average weight. From March to May, number of fruit was higher in Yamazaki nutrient solution. In conclusion, there was no difference in the growth of ‘Maehyang’ when 5 nutrient solutions were grown under hydroponics. But in order to improve the marketability, the NewUOS nutrient solution is appropriate to use from planting to February and it is suitable to use Yamazaki nutrient solution after March when temperature is high and the amount of fruit set per inflorescence.

Keywords
NewUOS nutrient solution
Yamazaki nutrient solution
pH of drainage
photosynthesis
number of fruit

본 연구는 딸기 ‘매향’의 양수분 흡수율을 고려하여 개발한 배양액을 검증하고자 이온 조성이 다른 5종 배 양액으로 8개월 동안 수경재배하면서 생육과 수량에 미 치는 영향을 조사하였다. 2015년 9월 22일 코이어 고설 베드에 딸기 묘를 정식하고 1개월 후 다섯 종류의 배양 액 농촌진흥청 딸기 배양액(RDA), 야마자키 딸기 배양 액(Yamazaki), PBG 딸기 배양액(PBG), 서울시립대 딸 기 배양액(UOS) 및 새로 개발된 서울시립대 딸기 배양 액(NewUOS)을 사용하여 EC 1.0dS·m-1, pH 6.0으로 1 일 주당 150~300mL 공급하였다. 정식 60일 후 엽폭, 엽병장은 배양액 종류에 차이를 보였으며, 광합성은 RDA와 NewUOS 배양액 처리에서 높았고, PBG 배양액 처리에서 낮았다. 영양생장기 배액의 EC는 공급수준보 다 낮은 EC 0.7~0.8dS·m-1, 이후는 EC 1.0~1.2dS·m-1로 안정되었다. 배액 pH는 Yamazaki 배양액 처리에서 6.2~6.8로 높은 반면, UOS 배양액은 5.1~5.2로 낮았다. 영양생장기 배액의 무기이온은 질산태 질소의 흡수가 가 장 활발하였으며, 화방전개 이후 칼륨 흡수가 NewUOS, UOS 및 Yamazaki 배양액 처리에서 높았다. 정식 6개월 후 지상부와 지하부 생체중과 건물중은 UOS와 NewUOS 배양액에서 높았으며, 지상부 건물율은 Yamazaki 배양액 에서 43.5%로 낮았으며, 지하부 건물율은 NewUOS배양 액에서 30.6%로 낮았다. 12월부터 2월까지 수확된 딸기 의 과장, 과폭, 과중, 당도는 배양액 차이에 의한 유의성 은 없으나, NewUOS 배양액에서는 주당 과수와 평균 과 중이 높아 수량이 높았다. 3월부터 5월까지 Yamazaki 배양액에서 수확된 딸기는 주당 과수와 수량이 높았다. 따라서 이온 조성 차이에 따른 배양액 5종으로 수경재 배하였을 때 ‘매향’의 생육은 차이를 보이지 않았으나, 시기별 상품성 향상을 위해 정식 후 ~ 2월까지는 NewUOS 배양액을, 고온과 화방당 착과량이 많아지는 3 월 이후에는 Yamazaki 배양액으로 재배하는 것이 적합 하리라 본다.

키워드
NewUOS배양액
Yamazaki 배양액
배액 pH
광합성
과수
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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 : 26
  • No :3
  • Pages :227-234
  • Received Date : 2017-06-14
  • Revised Date : 2017-07-26
  • Accepted Date : 2017-07-27
  • DOI :https://doi.org/10.12791/KSBEC.2017.26.3.227
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