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Effect of Substrates on the Growth and Flowering of Freesia hybrid ‘Gold Rich’ in Nutrient Culture

프리지아(Freesia hybrida) ‘골드리치’의 양액재배 시 인공배지별 생육 및 개화특성

Jin-Jae Lee1*
이 진재1*
1Department of Horticulture, Jeollabuk-do Agricultural Research and Extension Service
1전라북도농업기술원 원예산업과
*교신저자. *Corresponding Author. 
28 February 2017. pp. 30-37
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Abstract

This study was conducted to determine the effects of various growth substrates on the growth and flowering of hydroponically grown Freesia hybrid ‘Gold Rich’. Perlite, peat moss and a perlite: peat moss mixture (1 : 1 ratio, v / v) were used as the growing media. The greatest plant height before flower bud differentiation was attained using mixed medium compared to the others. The type of medium used did not influence leaf number, mineral content or SPAD value in leaves. Flowering began at 137 days after planting in mixed medium, which was 13 days earlier than in perlite medium. The whole plant fresh weight was 21.3 g heavier in mixed medium than in perlite medium (40.9 g). A similar result was obtained for shoot length, with the highest value (96.6 cm) obtained in mixed medium, i.e., 20 cm higher than in perlite medium (76.6 cm). Floret number per plant was also the highest in mixed medium (14.4), i.e., 1.7 - times higher than in perlite medium. Therefore, among the substrates tested in this experiment, we recommend using mixed perlite: peat moss medium (1 : 1 ratio, v / v) for hydroponic culture of freesia, as the use of this medium improved the physical properties of the plants, producing the best results in terms of plant growth and cut-flower quality.

Keywords
flowering time
mineral content
SPAD value
soil physical properties
growth

프리지아 ‘골드리치’ 양액재배 시 적정 인공배지를 선발하기 위해 펄라이트, 펄라이트(1) + 피트모스(1) 혼합, 피트모스를 처리하였다. 꽃눈분화 전 초기 생육은 혼합배지와 피트모스 배지가 펄라이트 배지에 비해 초장이 길었고 엽수는 차이가 없 었다. 엽내 무기이온 흡수비율과 엽록소 함량(SPAD value)은 처리별 큰 차이가 없었다. 개화소요일수는 혼합배지가 137일, 피트모스 배지는 143일, 펄라이트 배지는 150일로 가장 늦었다. 식물체 총 중량은 혼합배지에서 62.2g으로 펄라이트배지 보 다 21.3g이 더 무거웠고, 초장은 혼합배지에서 96.6cm로 펄라이트 배지 보다 20cm가 큰 것으로 조사되었다. 소화수도 혼합배 지가 14.4개로 가장 많았고 펄라이트 배지 보다 1.7개가 많았다. 프리지아 양액재배 시 적정 배지로는 생육 및 개화특성이 우 수한 것으로 조사된 혼합(펄라이트 + 피트모스)배지로 판단되었다.

키워드
개화시기
무기물 흡수
엽록소함량
토양 물리성
생육
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Information
  • Publisher :KOREAN SOCIETY FOR HORTICULTURAL SCIENCE
  • Publisher(Ko) :원예과학기술지
  • Journal Title :Horticultural Science and Technology
  • Journal Title(Ko) :원예과학기술지
  • Volume : 35
  • No :1
  • Pages :30-37
  • Received Date : 2016-02-23
  • Revised Date : 2016-09-07
  • Accepted Date : 2016-09-13
  • DOI :https://doi.org/10.12972/kjhst.20170004
Journal Informaiton Horticultural Science and Technology Horticultural Science and Technology
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