Journal of Bio-Environment Control (생물환경조절학회지)

The Korean Society for Bio-Environment Control (한국생물환경조절학회)
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Effects of Soil Moisture Control and Dormancy Breaking Agents on Bud Burst and Fruiting for Double Cropping System in a Year in 'Kyoho' Grapes

포도 '거봉' 2기작재배를 위한 하계휴면타파에서 토양수분 조절과 휴면타파제 처리가 발아에 미치는 영향

  • 오성도 (전북대학교 농과대학 생물지원과학부(전북대학교 농업과학 기술연구소)) ;
  • 김용현 (생물자원시스템공학부(전북대학교 농업과학기술연구소)) ;
  • 최동근 (전북 농업기술원 원예연구과)
  • Published : 2002.06.01
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Abstract

Double cropping system in a year in Kyoho grapes (Vitis labruscana L.) has currently been attempted in the plastic greenhouse. One of the problems in double cropping system is the promotion of bud break in summer season and shoot fertility. Effects of the control of soil moisture tension near the root zone and treatments of bud dormancy breaking agents on bud breaking in summer were examined to promote the bud break for the second fruiting. The lignification of shoots was induced in July or August by the control of soil moisture tension in root zone environment. The first shoot growth was almost the same as that in common plastic greenhouses. The highest bud break value appeared in the plot of cyanamide chemicals mixed with merit blue as over 75% bud break rate. The bud break rate in the discontinuing plot in irrigation showed significantly higher in bud break than that in the continuing plot in irrigation. Despite of the final high bud break rate, the time of bud break was irregular.

포도 시설재배시 년 2기작 재배를 하려면 가장 문제가 되는 것이 여름의 휴면타파에 의한 2차 생장의 유도이다. 본 연구에서는 근권환경조절에 의하여 토양수분조절과 휴면타파제 처리에 의하여 발아율을 높이기 위한 연구를 수행하였다. 근권수분조절에 의하여 신초의 등숙을 7, 8월에 유도할 수 있었다. 근권환경조절에 의하여 1차 생장은 일반 시설재배의 신초생육과 차이가 없었다. 2기작 재배를 위한 휴면타파 처리제는 시아나미드화합물에 메리트청을 혼합한 구가 75% 이상의 높은 발아율을 나타내었다. 신초 등숙 유도를 위한 수분중단구가 수분공급구 보다 발아율이 높았다. 결실 신초율은 처리간 타이가 없었으나 신초발아 시기가 균일하지 않았다.

Keywords

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