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NTIS 바로가기한국환경농학회지 = Korean journal of environmental agriculture, v.37 no.2, 2018년, pp.87 - 96
사공동훈 (대구대학교 원예학과) , 이재왕 (한국농수산식품유통공사) , 윤태명 (경북대학교 원예과학과)
BACKGROUND: The vigorous shoot growth in upper part of apple tree canopy leads to poor fruit quality and flower bud formation in lower part of canopy. So, this study was conducted to develop the proper control method about the shoot growth in upper part of apple tree canopy. METHODS AND RESULTS: Tru...
핵심어 | 질문 | 논문에서 추출한 답변 |
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세장방추형 사과나무의 단점은 무엇인가? | , 1998a; Yang et al., 2010, 2015), 목표 수고를 위해 3년차부터 주간 연장지를 절단하면 주간에 세력이 강한 골격지가 다수 발생되어 하계전정과 같은 광 투과를 증가시키기 위한 작업들이 많아지는 문제점이 있다(Robinson et al., 2006). | |
사과나무의 생장조절제에 관한 연구는 무엇이 있는가? | 그러나 이러한 전정에 의한 생장 억제 효과는 생장조절제를 이용하는 것보다 적은데, 과수의 수세조절을 위해 이용되는 생장조절제로는 Paclobutrazol (PZL), Prohexadione-calcium (Pro-Ca), ethephon 및 Naphthalene acetic acid (NAA) 등이 있다(Wetheim and Webster, 2005). 이중 사과나무에서는 NAA를 1.0~2.0% 농도로 주간에 처리하면 도장지 발생이 현저하게 감소된다는 보고(Shim et al., 1983) 및 지베렐린 (gibberellic acid, GA) 생합성 억제제인 Pro-Ca를 250 mg/L 농도로 1회 살포하면 신초생장이 효과적으로 억제되 었다는 보고(Millier, 2002)가 있다. | |
사과나무의 특성은 무엇인가? | 사과나무는 정부우세성과 동시에 기부우세성을 가지고 있어, 유목기에는 정부우세성에 의해 위로 크려는 성질이 강하지만 어느 정도 높이에 도달하면 기부우세성에 의해 옆으로 자라는 성질이 강해져 수관이 확대되는 특성이 있는데, 이러 한 수관 확대는 밀식장해를 일으키는 요인이 될 뿐만 아니라 곁가지의 세력과도 관계가 있어 주간 연장지를 살리고 수관 상단부의 세력을 적절하게 조절해야 수관 전체의 크기와 곁 가지의 세력조절이 용이해진다(Kim and Park, 2010). 그러므로 재식밀도에 적합한 수고 및 수관 상단부의 세력을 유지 하기 위해서는 우선적으로 사과나무의 생장에 직접적으로 영 향을 주는 전정, 가지 유인, 시비 조절, 착과량 조절 등을 활 용하여 수관 상단부의 수세를 안정시켜 주어야 하며, 필요할 경우에는 환상박피 및 생장조절제 살포 등과 같은 방법으로 수세를 안정시켜 주는 것이 필요한데(Kim et al. |
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