• Title/Summary/Keyword: brassinosteroids

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Soaking Effects of Brassinosteroids on Germination of Rice Under Simulated Acid Rain (인공산성비에 의한 볍씨발아 장해경감에 대한 Brassinosteroids의 처리효과)

  • Kim, Sang-Kuk;Choi, Chung-Don;Lee, Seong-Phil;Lee, Sang-Chul
    • Korean Journal of Soil Science and Fertilizer
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    • v.32 no.1
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    • pp.57-61
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    • 1999
  • This study measured the soaking effects of two brassinosteroids(BRs), homobrassinolide(hBR : 225, 23S-homobrassinolide) and epibrassinolide(epiBR : 22R, 23R. 24R-$2{\alpha}$, $3{\alpha}$, 22, 23-Tetrahydroxy-B-homo-7-oxa-$5{\alpha}$-ergostan-6-one) on the germination of two rice cultivars, 'Milyang 23' and 'Naepungbyeo' exposed to simulated acid rain(SAR). The results suggested that promoting effect of two BRs on alleviating damage to SAR would be attributed to the promotion of plant growth, root elongation, and particularly germination rate of both cultivars. Eight organic acids were determined by HPLC. Succinic acid acetic acid in 'Milyang 23' under SAR were highest among eight organic acids.

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