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Improving Growth and Yield in Cherry Tomato by Using Rootstocks

대목 종류에 따른 방울토마토 생장과 수량 증가

  • Lee, Hyewon (Department of Vegetable crops, Korea National College of Agriculture and Fisheries) ;
  • Lee, Jun Gu (Department of Horticulture, College of Agriculture & Life Sciences, Jeonbuk National University) ;
  • Hong, Kue Hyon (Department of Vegetable crops, Korea National College of Agriculture and Fisheries) ;
  • Kwon, Deok Ho (Department of Vegetable crops, Korea National College of Agriculture and Fisheries) ;
  • Cho, Myeong Cheoul (Vegetable Research Division, National Institute of Horticultural & Herbal Science, RDA) ;
  • Hwang, Indeok (R&D Center, Bunongseed Co., Ltd.) ;
  • Ahn, Yul Kyun (Department of Vegetable crops, Korea National College of Agriculture and Fisheries)
  • 이혜원 (국립한국농수산대학 채소학과) ;
  • 이준구 (전북대학교 농업생명과학대학 원예학과) ;
  • 홍규현 (국립한국농수산대학 채소학과) ;
  • 권덕호 (국립한국농수산대학 채소학과) ;
  • 조명철 (농촌진흥청 국립원예특작과학원 채소과) ;
  • 황인덕 (부농종묘 육종연구소) ;
  • 안율균 (국립한국농수산대학 채소학과)
  • Received : 2021.05.27
  • Accepted : 2021.07.05
  • Published : 2021.07.31

Abstract

This research was conducted in order to analyze the difference in yield through the changes in growth and measuring the photosynthesis efficiency in cherry tomatoes. Seedlings of cherry tomato 'Nonari' were used as scion and non-grafted control, while 4 different grafted tomatoes 'Powerguard', 'T1', 'L1', and 'B.blocking' were used as rootstocks. Plants grafted onto 'B.blocking' produced the highest fruit yield (417.5 g plant-1), whereas non-grafted plant 'Nonari' had the lowest fruit yield, (354.2 g plant-1) at the latter period of cherry tomatoes in May. The flowering position in May, plant grafted onto 'B.blocking', showed 14-17 cm, whereas non-grafted plant 'Nonari' showed 10-14 cm. The growth strength on May 15, non-grafted plant 'Nonari', showed 8.43 mm which was the lowest value among the treatments. Grafted plants kept the growth balance until the end of the harvest that led to an increase in fruit yield, while non-grafted plant weakened the vigor earlier that led to a decrease in fruit yield. Grafted plants showed higher values of chlorophyll fluorescence variables than the values of non-grafted plant. These results indicate that grafting influenced fruit yield which was observed as maintaining growth balance for longer and an increase in photosynthesis efficiency compared to non-grafting.

본 연구는 대목 종류에 따라 나타나는 방울토마토 수량 차이를 생장상의 변화와 광합성 효율을 통해 비교분석하고자 수행하였다. 접수 '노나리'와 대목 4종류('파워가드', 'T1', 'L1', 'B.blocking')을 사용하여 접목한 4개의 처리구와 '노나리'를 접목하지 않은 1개의 처리구로 실험에 사용하였다. 방울토마토 생육후기인 5월의 주 당 평균 총 수확량을 조사한 결과 대목 'B.blocking'을 사용한 처리구는 417.5g으로 가장 높은 수확량을 보였고 대목을 사용하지 않은 처리구가 354.2g으로 가장 낮은 수확량을 보였다. 정식 252일 후의 개화위치를 조사한 결과 대목 'B.blocking'을 사용한 처리구는 14cm 내지 17cm의 개화위치를 보인 반면 대목을 사용하지 않은 처리구는 10cm 내지 14cm의 개화위치를 보였다. 정식 266일 후 생장강도를 조사한 결과 대목 'T1', 'L1', 'B.blocking'을 사용한 처리구는 10mm대의 생장강도를 보인 반면 대목을 사용하지 않은 처리구의 생장강도는 8.43mm로 낮은 값을 보였다. 대목을 사용한 처리구는 생육후기까지 생장의 균형을 맞춰 높은 수확량을 보인 반면 대목을 사용하지 않은 처리구는 세력이 저하되어 수확량이 감소한 것으로 판단된다. 엽록소 형광변수는 대목을 사용한 처리구가 대목을 사용하지 않은 처리구보다 높았다. 이상으로 방울토마토 접목묘를 사용하는 것이 생육후기까지 생장의 균형을 유지하고 광합성 효율이 높아 수량이 높은 것으로 판단된다.

Keywords

Acknowledgement

본 연구는 농촌진흥청 공동연구사업(과제번호 PJ013561032021)에 의해 수행되었음.

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