Growth and Yield of Eggplant ‘TNA-114’ as Affected by Planting Density and Coir Substrate Volume in Hydroponics

Seo-Hyeon Lee; Bo-Kyung Park; Seong-Tae Choi; Hye-Suk Yoon

doi:10.12791/KSBEC.2024.33.4.397

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2024 Vol.33, Issue 4 Preview Page Next Page

Original Articles

Growth and Yield of Eggplant ‘TNA-114’ as Affected by Planting Density and Coir Substrate Volume in Hydroponics 수경재배 가지 ‘TNA-114’의 재식밀도와 코이어 배지 용량에 따른 생육 및 수량

31 October 2024. pp. 397-402

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Abstract

Eggplant hydroponics has recently increased in its forcing culture, so it is necessary to establish a cultural guideline. This study was conducted to assess effect of planting density and coir substrate volume on growth and yield in the hydroponics. Eggplants ‘TNA-114’, grafted on rootstock ‘Tank One’, were planted for the two experiments within a greenhouse in early September. The planting density treatments consisted of 2.9, 3.3, and 3.7 plants per m² in 3.3 L substrate volume. Substrate volumes were treated with 3.6 L and 9 L per plant at the density of 3.3 plants per m². The cultivation rows were in the north-south direction, and two stems of the plant were trained to the east and west, respectively, for Y-shape. At 140 days after the planting, the 3.7 plants·m^-2 density had 13% less internodes than the 2.9 plants·m^-2 density and length of internode was 15% longer, but there was no significant difference among the treatments. Planting density did not affect yield per plant and fruit characteristics, but the 3.7 plants·m^-2 density increased yield per 10 a to 18.6 tons, 20% and 17% more than the 2.9 plants·m^-2 and the 3.3 plants·m^-2 densities, respectively. Plant growth, yield, and fruit characteristics did not differ between two substrate volumes of 3.6 L and 9 L. From the results, we concluded that planting density for ‘TNA-114’ could be increased to 3.7 plants·m^-2 with the substrate volume of 3.6 L/plant to improve the productivity in forcing culture.

Keywords

forcing culture

fruit set

fruit weight

Solanum melongena

가지 촉성재배 작형에서 수경재배가 최근 증가하고 있어 이에 적합한 기술 정립이 필요하다. 본 연구는 가지 수경재배 시 재식밀도와 코이어 배지 용량이 생육과 수량에 미치는 영향을 구명하기 위해 수행하였다. ‘부농탱크원’ 대목에 접목한 ‘TNA-114’ 모종을 9월 상순에 m²당 재식밀도를 2.9, 3.3, 3.7주로 달리하는 처리와 재식밀도 3.3주·m^-2 조건에서 1주당 코이어 배지 용량을 3.6L와 9L로 나누어 심는 처리를 하였다. 작물의 재식열은 남북 방향이었으며 2줄기를 각각 동서로 유인하여 Y자형으로 재배하였다. 정식 140일 후 3.7주·m^-2처리구는 2.9주·m^-2처리구보다 주당 절간수가 13% 적었고, 절간장은 15% 길었으나 유의적인 차이는 아니었다. 주당 수량, 과실 특성도 재식밀도의 영향을 받지 않았으나, 10a 당 수량은 3.7주·m^-2 처리구에서 18.6톤으로 2.9주·m^-2와 3.3주·m^-2 처리구보다 각각 20%와 17%가 많았다. 주당 배지 용량 3.6L와 9L 간에는 작물생육, 수량, 과실 특성 차이는 없었다. 본 연구결과 촉성재배 시설에서 ‘TNA-114’ 수경재배 시 생산성 향상을 위해 주당 배지 용량을 3.6L로 유지하면서 m²당 재식밀도를 3.7주 정도로 높일 수 있을 것으로 판단되었다.

키워드

과중

착과

촉성재배

Solanum melongena

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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 : 33
No :4
Pages :397-402
Received Date : 2024-08-28
Revised Date : 2024-10-02
Accepted Date : 2024-10-23
DOI :https://doi.org/10.12791/KSBEC.2024.33.4.397

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

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