Journal of Bio-Environment Control (생물환경조절학회지)

The Korean Society for Bio-Environment Control (한국생물환경조절학회)
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Effect of Water Content in Coir Substrates on the Growth and Yield of Mini-Paprika in Summer Hydroponics

여름철 소과형 파프리카 수경재배 시 코이어 배지함수량이 생육과 수량에 미치는 영향

  • 이한철 (국립원예특작과학원 시설원예시험장) ;
  • 최경이 (국립원예특작과학원 시설원예시험장) ;
  • 노미영 (국립원예특작과학원 시설원예시험장) ;
  • 정재완 (국립원예특작과학원 시설원예시험장) ;
  • 조명환 (국립원예특작과학원 시설원예시험장) ;
  • 김영철 (국립원예특작과학원 시설원예시험장) ;
  • 안철근 (경상남도농업기술원)
  • Received : 2012.08.29
  • Accepted : 2012.09.14
  • Published : 2012.09.30
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Abstract

This study was carried out to investigate the effect the water content in coir substrates as according to growth stage on the growth and yield of mini-paprika of three varieties 'E 499524' (red color), 'E 499526' (yellow colar) and 'E 499531' (orange colar) in summer hydroponics. Treatments of I, II and III were composed of 55-65-60, 50-60-55 and 45-55-50% in water contents of growth stages, respectively. Time domain reflectometry (TDR) sensors were used in a drip irrigation system. The early growth of mini-paprika was increased by high medium water content of treatment I in all of three varieties. Mean fruit weight was not affected by medium water content, but the fruit number per plant and yield were increased at high medium water content of treatment I. The Yield of treatment I was higher than that of treatment II and III in all of three varieties. The sugar content was increased by low medium water content of treatment in all of three varieties. The incidence of brown-stem fruit, blossom-end rot and sunburn was decreased with increasing water content of medium. Occurred in the low water content of medium. Mineral contents of fruits such as nitrogen (N), potassium (K), calcium (Ca), magnesium (Mg) etc. were not affected in all of three varieties.

'E 499524'(적색), 'E 499526'(황색) 및 'E 499531'(주황색) 3 품종(Enza Zaden, The Netherlands)의 소과형 파프리카를 이용하여 여름철에 코이어배지경으로 시험을 수행하였다. 양액공급은 오전 7시부터 오후 4시까지 TDR센서를 이용하여 공급하였으며 배지 내 함수량(관수개시점)을 생육단계별로 설정하였다. 초장은 배지함수량이 높을수록 길었으며 품종 간에는 '적색', '황색', '주황색' 순이었다. 평균과중은 배지함수량이 많을수록 무거웠으나 품종 간에는 차이가 없었다. 주당 착과수는 함수량이 높을수록 많았으며 품종 간에는 '적색', '황색', '주황색' 순이었다. 상품수량은 배지함수량이 높을수록 증가하였고 배지함수량 55~65~60% 처리에서 가장 많았으며 품종 간에는 '적색' 품종이 8,348kg/10a, '황색' 품종이 6,916kg/10a, '주황색' 6,916kg/10a, 순으로 많았다. 과실의 당도는 배지수분 함량이 적을수록 높았으며 품종 간에는 '주황색'이 $7.8{\sim}9.3^{\circ}Brix$로 가장 높았다. 과육의 두께는 배지 수분함량 간에는 차이가 없었으나 품종 간에는 '황색'이 가장 두꺼웠다. BER, 과병무름증 및 일소과 발생율은 배지함수량이 많을수록 낮았으며 품종 간에는 차이가 없었다. 이상의 결과에서 여름철 소과형 파프리카 수경재배 시 코이어 배지의 관수개시점을 정식부터 제1그룹 착과까지는 55%, 제1그룹부터 2그룹수확까지는 65%, 제3그룹착과 이후부터는 60%로 설정하는 것이 가장 좋은 것으로 판단되었다.

Keywords

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