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2024 Vol.33, Issue 4 Preview Page

Original Articles

Comparison of Growth Characteristics and Seed Potato (Solanum tuberosum L.) Productivity According to Artificial Light Sources in Raising Seedling of Stem Cuttings and Potato Cultivar

감자 품종과 경삽묘 육묘시의 인공광원에 따른 생육특성 및 종서 생산성 비교

Man Hyun Jo1*
조 만현1*
1Seed Management Office, Chungcheongnam-do Agricultural Research and Extension Services, Yesan 32425, Korea
1충청남도농업기술원 종자관리소
*Corresponding Author
31 October 2024. pp. 417-426
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Abstract

This study investigated the effects of different artificial light sources used during raising seedling of stem cuttings and potato (Solanum tuberosum L.) cultivars on the growth characteristics and seed potato production when using tissue-cultured plantlets in aeroponics. Tissue-cultured plantlets of five cultivars (‘Sumi’, ‘Doobaek’, ‘Dami’, ‘Chubaek’, and ‘Geumsun’) were acclimatized, after which stem cuttings were taken and grown for 43 days under fluorescent lights and LEDs (light intensity: 80 µmol·m-2·s-1), then cultivated in an aeroponic system for 90 days. Among the cultivars, the stem length of ‘Geumsun’ under LED light was the longest, measuring 23.8 cm, with all cultivars showing longer stem lengths under LED lighting, indicating differences based on both cultivar and the light source used during stem cuttings growth. Root fresh weight showed differences based on both cultivar and light source, with heavier roots under fluorescent lighting. Post-aeroponic cultivation, aboveground growth and T/R ratios were largely influenced by cultivar, showing no consistent trend in relation to the artificial light source. The weight distribution of produced seed potatoes was also more influenced by cultivar than by the light source during raising seedling of stem cuttings, with most seed potato weight between 0.5 and 50 grams. The proportion of tubers weight 3－50 grams varied among cultivars, with 53.8－65.6% for those grown under fluorescent lights and 43.3－66.7% for those grown under LED lighting. These results suggest that while artificial light used during stem cuttings growth affects some growth characteristics of stem cuttings, the cultivar characteristics have a greater impact on seed potato production than the light source used during raising seedling of stem cuttings.

Keywords
aeroponics
closed-type plant production system
tuber count proportions by weight
yield

본 연구는 감자(Solanum tuberosum L.)의 조직배양묘를 이용하여 분무경재배로 종서를 생산할 경우, 품종과 경삽묘를 육묘할 때 이용한 인공광원이 감자의 생육 특성과 씨감자 생산에 어떤 영향을 미치는지 연구하였다. ‘수미’, ‘두백’, ‘다미’, ‘추백’, ‘금선’ 5개 품종의 조직배양묘를 순화한 다음, 삽수를 채취하여 형광등과 LED(광도 80μmol·m-2·s-1) 하방광에서 43일간 육묘하고, 90일간 분무경 재배하였다. 경삽묘의 경장은 ‘금선’이 LED 광원에서 23.8cm로 가장 길었으며, 전 품종 모두 LED 광원에서 길어 품종의 영향뿐만 아니라 경삽묘 육묘시의 광원에 따라 차이를 보였다. 뿌리 생체중은 품종간의 차이뿐만 아니라 육묘시의 광원에 의한 차이도 있어 형광등 조명하에서 더 무거웠다. 분무경재배 후 지상부 생육과 T/R율 등은 품종에 의한 차이가 크고, 육묘시의 인공광원에 대한 일정한 경향을 보이지 않았다. 생산된 종서 무게별 비율에서도 경삽묘 육묘시 광원의 차이보다 품종에 따른 차이가 크며, 무게별 생산된 종서는 0.5－50g가 대부분이었다. 괴경중 3－50g의 비율은 품종마다 다르지만 형광등에서 육묘한 경삽묘에서 53.8－65.6%, LED 광원에서 육묘한 경삽묘에서 43.3－66.7%로 가장 큰 비율을 차지하였다. 이상의 결과를 보면 육묘시의 인공광원은 경삽묘의 일부 생육특성에 영향을 미치나, 종서 생산은 육묘할 때의 인공광원보다는 품종특성의 영향이 더 컸다.

키워드
무게별 종서수 비율
밀폐형식물생산시스템
분무경
수량
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Information
  • Publisher :The Korean Society for Bio-Environment Control
  • Publisher(Ko) :(사)한국생물환경조절학회
  • Journal Title :Journal of Bio-Environment Control
  • Journal Title(Ko) :생물환경조절학회지
  • Volume : 33
  • No :4
  • Pages :417-426
  • Received Date : 2024-07-05
  • Revised Date : 2024-10-16
  • Accepted Date : 2024-10-24
  • DOI :https://doi.org/10.12791/KSBEC.2024.33.4.417
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