• Title/Summary/Keyword: Lactuca

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The Interaction of Volatile Chemicals and Phytohormones on Seed Germination and Seedling Growth of Lettuce (상치의 발아와 유묘생장에 미치는 휘발성 화학물질과 식물호르몬의 상호작용)

  • 윤경원;길봉섭
    • The Korean Journal of Ecology
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    • v.20 no.4
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    • pp.233-238
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    • 1997

  • To evaluate allelopathic effect of volatile chemicals and phytohormones, seed germination and seedling growth test of Lactuca sativa have performed in laboratory experiments. Among used chemicals terpienen-4-ol was the most inhibitory to seed germination of lettuce. ABA and GA inhibited seed germination at $5{\times}10^{-6}M$ concentration but promoted germination at $2.5{\times}10^{-5}M$ and $5{\times}10^{-5}M$. ABA and GA alleviated volatile chemical-induced inhibition of seed germination and seedling elongation of lettuce.

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Allelopathic Effects of Volatile Substances Emitted by Lycopersicon esculentum (토마토에서 방산된 휘발성 물질의 알레로파시 효과)

  • 김영식;길봉섭;이은복
    • The Korean Journal of Ecology
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    • v.21 no.2
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    • pp.151-156
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    • 1998

  • the phytotoxic effects of volatile substances emitted from the tomato plant (Lycopersicon esculentum) on receptor plants such as Bidens bipinnata, Plantago asiatica, Lactuca sativa, Eragrositis ferruginea and Achyranthes japonica were investigated. Bolatile substances from the leaves inhibited seedling growth of receptor plants in the laboratory tests. The inhibition response varied with the concentration of compounds. To identify the phytotoxic compounds from tomato plant a GC/MS method was employed. Forth compounds, such as trans-2-hexeal, linalool, phenylacetaldehyde, methlsalicylic acid and tetradecanaic acid were identified from the essential oil of tomato plants. The findings suggest that the tomato plant may have allelopathic potential.

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Identification of Three Fungi Newly Intercepted from Importing Plants in Korea

  • Hyun, Ik-Hwa;Heo, Noh-Yeoul;Chang, Seo-Yeon;Heo, Jong-Young;Mel'nik, Vadim
    • Mycobiology
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    • v.33 no.4
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    • pp.243-244
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    • 2005

  • Three fungi newly intercepted from importing plants were identified in 2004. They were Ascochyta chrysanthemi on Lactuca sativa from China, A. spinaciicola on Spinacia oleracea from Denmark, and Leptosphaerulina australis on Brassica oleracea var. capitata from China. The characters of these fungi were described and illustrated.

  • https://doi.org/10.4489/MYCO.2005.33.4.243 인용 PDF KSCI