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Growth and Fruit Characteristics of Zyziphus jujuba Mill by the Types of RainShelter House

비가림하우스 유형별 대추의 생육 및 과실 특성

  • 이경희 (충청북도농업기술원 대추연구소) ;
  • 박희순 (충청북도농업기술원 대추연구소) ;
  • 오하경 (충청북도농업기술원 대추연구소) ;
  • 이종원 (충청북도농업기술원 원예연구과) ;
  • 강효중 (충청북도농업기술원 대추연구소) ;
  • 이성균 (충청북도농업기술원 대추연구소) ;
  • 신현만 (충청북도농업기술원 대추연구소)
  • Received : 2018.10.25
  • Accepted : 2018.12.18
  • Published : 2018.12.30

Abstract

Background: Recently, jujube (Zizyphus jujuba Mill.) has been attracting attention as a fruit, and its cultivation in rain shelter house is increasing to produce the high quality fresh jujube. This study was carried out to investigate the growth and fruit characteristics of jujube according to the types of rain shelter house. Methods and Results: The characteristics of 5-year-old Bokjo cultivar cultivated in 3 types of rain shelter house, multi span rain shelter house with roof vent (Type I), single span house with a column in the center and roof vent (Type II) and single span house with a column in the center and without roof vent (Type III), and open field were examined. The sprouting and blooming period were different among the types of rain shelter house. The diameter of main stem was higher in rain shelter houses than in the open field. There was no a significant difference in fruit number per leaf stem among the types of cultivation. The incidence of fruit cracking in open field cultivation which was 51.2% was much higher than that in Type I 21.6%, Type II 19.3%, and Type III 25.5%. The fruit size and weight in rain shelter houses, especially in Type III rain shelter house were higher than those in the open field and the soluble solids content of fruit in Type I and Type II was higher than in Type III rain shelter house and the open field. Conclusions: The results show that the growth and fruit quality of jujube were improved by cultivation in rain shelter house, and affected by the types of rain shelter house.

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Fig. 1. Outside view of rain shelter houses for jujube in this study.

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Fig. 2. Average air temperature in the three types of rain shelter house and open field during sprouting and flowering period of jujube.

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Fig. 3. Diameter of main stem of jujube tree in the three types of rain shelter house and open field.

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Fig. 4. Occurrence of jujube fruit cracking according to the types of rain sheltering house.

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Fig. 5. Number of fruiting of jujube in the three types of rain shelter house and open field.

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Fig. 6. Photosynthetic photon flux density (PPFD) in Type III rain shelter house and open field.

Table 1. Dimensions of rain shelter houses for jujube in this study.

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Table 2. Sprouting and blooming periods of ‘Bokjo’ cultivar in the three types of rain shelter house and open field.

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Table 3. Characteristics of jujube fresh fruit according to the types of rain sheltering house.

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Acknowledgement

Supported by : 농촌진흥청

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