Effects of Plant Growth Regulators Sprayed at Unfolded Leaf Stage on Fruit Quality in 'Campbell Early' Grape

포도 '캠벨얼리' 품종의 전엽기 생장조절제 처리가 품질에 미치는 영향

  • Chun, Jong-Pil (Dept. of Horticulture, Chungnam National Univ.) ;
  • Kim, Byung-Ki (Dept. of Horticulture, Chungnam National Univ.) ;
  • Bae, Tae-Min (Dept. of Horticulture, Chungnam National Univ.) ;
  • Oh, Kyung-Young (Dept. of Horticulture, Chungnam National Univ.) ;
  • Kim, Jin-Gook (ept. of Horticulture, Gyeongsang National Univ. (Insti. of Agric. & Life Sci.))
  • 천종필 (충남대학교 원예학과) ;
  • 김병기 (충남대학교 원예학과) ;
  • 배태민 (충남대학교 원예학과) ;
  • 오경영 (충남대학교 원예학과) ;
  • 김진국 (경상대학교 원예학과(농업생명과학연구원))
  • Received : 2012.07.31
  • Accepted : 2012.12.26
  • Published : 2012.12.31

Abstract

This study was conducted to increase grape quality by treating plant growth regulator (PGR) in 'Campbell Early' grape. Foliar application of gibberellic acid ($GA_3$) at $5mg{\cdot}L^{-1}$ on flower cluster of 'Campbell Early' grape at 3-5 unfolded leaf stage effectively increased columella length, berry weight, soluble solid contents and promoted skin color development. Foliar application of $20mg{\cdot}L^{-1}$ abscisic acid (ABA) mixed with $5mg{\cdot}L^{-1}$ of $GA_3$ on flower cluster of 'Campbell Early' grape at 3-4 unfolded leaf stage effectively increased skin anthocyanin contents without any detrimental effects on berry enlargement and columella growth. Foliar application of $2.5mg{\cdot}L^{-1}$ thidiazuron mixed with $5mg{\cdot}L^{-1}$ of $GA_3$ on flower cluster of 'Campbell Early' grape at 3-4 unfolded leaf stage effectively increased fruit quality indices such as higher soluble solid contents and less titratable acidity.

본 연구는 식물생장조절물질을 활용하여 '캠벨얼리' 포도의 품질향상 증진 방안을 마련하기 위하여 실시하였다. 전엽 3~5엽기에 화방에 대한 지베렐린($GA_3$) $5mg{\cdot}L^{-1}$ 엽면처리는 '캠벨얼리' 포도의 과경, 과방중, 가용성당함량, 과피의 착색을 증진시켰다. 전엽 3~4엽기의 화방에 대한 $GA_3$ $5mg{\cdot}L^{-1}$과 ABA $20\;mg{\cdot}L^{-1}$ 혼용처리는 과립 비대와 과축 신장을 저해하지 않았으며 포도 과피의 안토시아닌 축적에 효과적이었다. '캠벨얼리' 포도의 전엽 3~4엽기에 화방에 대한 thidiazuron $2.5mg{\cdot}L^{-1}$$GA_3$ $5mg{\cdot}L^{-1}$ 혼용처리는 가용성고형물 함량 증진과 산함량 감소를 촉진하여 과실 품질이 증대되었다.

Keywords

Acknowledgement

Supported by : 농림수산식품부

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