Growth,  Quality and Irrigation Requirements of Melon Cultivars in Hydroponic Cultivation Using Coir Substrate

Mi Young Lim, Mi Young Roh, Ho Jeong Jeong, Gyeong Lee Choi, So Hui Kim, Su Hyun Choi, and Choung Keun Lee

doi:10.12791/KSBEC.2021.30.3.188

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2021 Vol.30, Issue 3 Preview Page Next Page

Original Articles

Growth, Quality and Irrigation Requirements of Melon Cultivars in Hydroponic Cultivation Using Coir Substrate 코이어 배지를 이용한 멜론 수경재배 시 품종별 생육, 품질 및 급액 요구량

July 2021. pp. 188-195

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Abstract

멜론(Cucumis melo L.)의 수경재배에서 급액량이 생육과 과실 품질에 미치는 영향이 매우 크기 때문에 품종별 그 특성을 조사하고 품종별 급액량을 다르게 조절하여 실험을 수행하였다. 2019년에 ‘달고나’를 비롯한 12품종의 멜론을 동일한 관수량으로 재배하여 품종 특성을 조사하고 각각의 생육 정도를 몇 개의 그룹으로 분류하였다. 줄기 마디길이(0－20마디), 엽면적 및 과중은 ‘달고나’ 가 가장 작은 그룹이었고 ‘월드스타’가 중간, ‘킹스타’가 가장 큰 그룹에 속했다. 실험 결과를 바탕으로 ‘달고나’, ‘월드스타’, ‘킹스타’ 및 ‘루비볼’을 실험품종으로 선발하여 2020년에 각 품종별로 급액 요구량에 맞도록 급액량을 각각 다르게 처리하였다. 재배기간 동안 품종별로 배액률을 모니터링하면서 급액량을 각각 조절한 결과, ‘생육초기’에는 4품종 모두 비슷한 급액량을 요구하였으나 ‘개화기’부터는 ‘월드스타’와 ‘킹스타’ 2품종, ‘루비볼’과 ‘달고나’ 2품종의 급액량이 비슷하게 변화하였다. ‘착과시기’부터 품종별로 급액량의 급격한 변화가 관찰되었는데 ‘달고나’가 제일 먼저 급액량이 줄어들기 시작하였고, 다음으로 ‘루비볼’, ‘월드스타’, ‘킹스타’ 순으로 점점 줄어드는 경향을 보였다. 이러한 품종 간 생육 및 과실 품질의 차이는 품종 고유의 특성에서 비롯된 것이며, 멜론 수경재배에서 품종별 생육 특성이 급액 요구량에 미치는 영향이 매우 크다는 것을 알 수 있었다. 따라서 멜론 수경재배 시 고품질의 과실을 생산하기 위해서는 그 품종 고유의 생육 특성을 반영한 정밀한 급액량 조절이 필요할 것으로 판단된다.

키워드

Cucumis melo L.

과중

줄기 마디길이

엽면적

This study was conducted to investigate the growth and quality characteristics of melon (Cucumis melo L.) cultivars and the irrigation requirements for cultivars. In our previous study in 2019, twelve melon cultivars including ‘Dalgona’ were examined for their cultivar characteristics under the same irrigation condition for all cultivars, and sorted into several groups based on different growth condition; for the internode length (from 0 to 20th node), leaf area, and fruit weight, ‘Kingstar’ belonged to the largest group, ‘Worldstar’ the middle group, and ‘Dalgona’ the smallest group. After analyzing the results of the previous experiment, ‘Dalgona’, ‘Worldstar’, ‘Kingstar’, and ‘Rubyball’ were selected as test cultivars for the growth group in 2020, and irrigated according to different irrigation levels for each cultivar. The control of the irrigation volume for each melon cultivar by monitoring the drainage rate during the cultivation periods showed that all four cultivars required a similar amount of irrigation in the ‘early growth’ stage where crops grew at about the same rate. From ‘flowering time’, however, the change in irrigation requirements showed a similar tendency for ‘Worldstar’ and ‘Kingstar’ and for ‘Rubyball’ and ‘Dalgona’ respectively. A sudden change in each irrigation volume was observed from the fruit set; ‘Dalgona’ began first to decline and ‘Rubyball’ was second, followed by ‘Worldstar’ and ‘Kingstar’. In conclusion, the irrigation volume was the largest in ‘Kingstar’, followed by ‘Worldstar’, ‘Rubyball’, and ‘Dalgona’ in the same order as the growing amount of plant length, leaf area, and fruit weight. Therefore, it is necessary to control exactly the irrigation volume by reflecting the unique growth characteristics of each cultivar for the production of high-quality fruit in melon hydroponics, and especially to use great care when different cultivars are cultivated together.

Keywords

Cucumis melo L.

fruit weight

internode length

leaf area

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Information

Publisher :The Korean Society for Bio-Environment Control
Publisher(Ko) :(사)한국생물환경조절학회
Journal Title :Journal of Bio-Environment Control
Journal Title(Ko) :생물환경조절학회지
Volume : 30
No :3
Pages :188-195
Received Date :2021. 04. 05
Revised Date :2021. 05. 21
Accepted Date : 2021. 05. 24
DOI :https://doi.org/10.12791/KSBEC.2021.30.3.188

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

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