• Title/Summary/Keyword: 유묘

Search Result 902, Processing Time 0.032 seconds

Synthesis of Abscisic Acid Analogs and Their Biological Activity on Growth of Rice Seedling (합성 ABA 유도체의 벼 유묘 생장저해 작용)

  • Lee, Sang-Kap
    • Korean Journal of Environmental Agriculture
    • /
    • v.16 no.3
    • /
    • pp.269-273
    • /
    • 1997

  • This research aims at developing a new plant growth inhibitors related to abscisic acid by means of esterification of (S)-(+)-ABA with p-hydroxy methyl cinnamate and umbelliferone, and testing its biological activity on growth of rice seedlings. The over-all yield of ABA-methyl cinnamate(AC) and ABA-umbelliferone(AC) ester compounds were 83% and 78%, respectively. The growth inhibition activity of these synthetic compounds were shown about 3 to 10 times(AC) and 10 to 30 times(AU) higher than (S)-(+)-ABA.

  • PDF

Establishment and Using of mass propagation system for Calanthe discolor Lindle (새우난초(Calanthe discolor Lindley)의 대량증식 시스템 확립 및 이용)

  • 서병기
    • Korean Journal of Plant Resources
    • /
    • v.15 no.3
    • /
    • pp.221-226
    • /
    • 2002

  • This experiment was conducted to establish the mass propagation system of Calanthe discolor Lindley. When the Calanthe discolor seeds were sown in Murashige and Skoog medium, the percentage of germination was 65％. Seedlings grew more rapidly in the liquid medium than the solid medium. All regenerated plantlets were survived in acclimatized condition of 70% shade and more than 80％ humidity. Also, we found out that the 88% of survival ratio could be achieved in containing soil mixture of vermiculite and perlite as same as amount.

  • PDF KSCI