Korean Journal of Weed Science (한국잡초학회지)

The Korean Society of Weed Science & The Turfgrass Society of Korea Archive (한국잡초학회 & 한국잔디학회)
권호 표지

Interaction of Brassinolide with Other Known Plant Growth Regulators

Brassinolide와 기존 식물생장조절제(植物生長調節劑)와의 상호작용(相互作用)

  • Choi, C.D. (Yeongnam Crop Experiment Station, RDA) ;
  • Takematsu, T. (Faculty of Agriculture, Utsunomiya Univ.) ;
  • Takeuchi, Y. (Faculty of Agriculture, Utsunomiya Univ.) ;
  • Kim, K.U. (Dept. of Agronomy, Coo. of Agri., Kyungpook National Univ.)
  • Published : 1987.03.30
Download PDF
⟨ Previous Next ⟩

Abstract

This study was attempted to evaluate the combining effect of HBR (homobrassinolide) with the known growth regulators such as GA (gibberellic acid), BA(6-benzyl aminopurine), IAA (indole-3-acetic acid), B-9 (N-dimethylamino succinamic acid) and CCC (2-chloroethyl-trimethylammonium chloride) on the growth of radish hypocotyl. A single application of HBR increased hypocotyl growth as its rates increased from 0.1 to 1.0 ppm, showing a maximum increase at 1.0 ppm. GA and BA had no direct effects on hyopcotyl growth, but IAA showed some effect as its concentration increased. However, the mixed application of HBR with GA, BA and IAA increased the length of radish hypocotyl as the concentration of HBR became higher. The mixture of HBR with GA and BA showed antagonistic reaction on radish hypocotyl growth, but synergistic effect was shown in the higher rate mixture of HBR with IAA in the range of HBR at 0.03 to 0.30 ppm with IAA at 3.0 to 10.0 ppm, but antagonistic or additive response at the mixture of low rates. An increased growth of hypocotyl by HBR was ified by CCC, showing the strong antagonistic reaction, but B-9 was not able to ify HBR's effect on hypocotyl growth.

새로운 식물생장조절제(植物生長調節劑)인 brassinolide와 기존(旣存) 식물생장조절물질(植物生長調節物質)과의 혼용(混用)의 효과(効果)를 우우 불배축(不胚軸)의 신장반응(伸長反應)으로 조사(調査)하여 얻어진 결과(結果)를 요약(要約)하면 다음과 같다. 1. HBR 단독처리(單獨處理)는 처리농도(處理濃度)가 0.1 에서 1.0ppm 증가(增加)할 수록 무우 하배축(下胚軸)의 신장(伸長)이 촉진(促進)되었으며 무처리(無處理)에 비(比)하여 1.0 ppm에서 60% 이상(以上) 증대(增大)시켰다. 2. GA나 BA의 단독처리(單獨處理)는 처리농도(處理濃度)에 관계(關係)없이 하배축(下胚軸) 신장(伸長)을 촉진(促進)시키지 못하였으나 IAA는 처리농도(處理濃度)가 증가(增加)할 수록 다소(多少) 증가(增加)시켰다. 3. HBR과 GA, BA 및 IAA와의 혼용(混用)은 HBR의 농도(濃度)가 증가(增加)할수록 무우 하배축(下胚軸)의 신장(伸長)의 증대(增大)시켰다. 4. HBR과 GA 및 BA와의 상호작용(相互作用)의 반응(反應)은 대체로 길항적(拮抗的)이며 HBR과 IAA와는 HBR의 0.03 ppm에서 0.3ppm과 IAA 3.0ppm에서 10.0 ppm 혼용(混用)에서 상승작용(相乘作用)을 나타냈으며 저농도(低濃度) 조합(組合)에서 5% 미만(未滿)의 길항(拮抗) 또는 상가반응(相加反應)을 보였다. 5. B-9과 CCC 단독처리(單獨處理)는 농도(濃度)가 증가(增加)할수록 무우 하배축(下胚軸)의 신장(伸長)이 억제(抑制)되었으나 HBR과 혼용(混用)하므로 신장(伸長)이 회복(回復)되었고 HBR에 의해 유도(誘導)된 신장(伸長)이 B-9에 의해서 억제(抑制)되지 않았으나 CCC에 의해서는 크게 억제(抑制)되어 강(强)한 길항관계(拮抗關係)가 있는 것으로 나타났다.

Keywords