CAJ | 학술논문

以淦鑫203水稻品种为试验材料，研究了不同低温条件下水稻孕穗期叶片中吲哚乙酸（ IAA ）、赤霉素（GA3）和脱落酸（ABA）3种内源激素含量的变化。研究结果表明：低温胁迫下水稻叶片生长活力下降，其内源激素水平发生了显著变化，即IAA、GA3的含量下降，ABA的含量升高。随着低温胁迫程度的加剧，叶片内部内源激素的变化越来越显著。随着恢复生长时间的延长，IAA、GA3含量呈现逐渐升高变化趋势；ABA含量呈现逐渐降低变化趋势。
이감흠203수도품충위시험재료，연구료불동저온조건하수도잉수기협편중신타을산（ IAA ）、적매소（GA3）화탈락산（ABA）3충내원격소함량적변화。연구결과표명：저온협박하수도협편생장활력하강，기내원격소수평발생료현저변화，즉IAA、GA3적함량하강，ABA적함량승고。수착저온협박정도적가극，협편내부내원격소적변화월래월현저。수착회복생장시간적연장，IAA、GA3함량정현축점승고변화추세；ABA함량정현축점강저변화추세。
In order to analyze the physiological and biochemical mechanisms of rice ,by using Ganxin203. As the test material ,the changes of the activities of endogenous hormones such as IAA ,GA3 and ABA in leaves at the booting stage under low temperature stress were studied .The result showed that the growth activity de-creased and the contents of endogenous hormones in leaves changed significantly under the low temperature condition.The contents of IAA and GA 3 decreased.However,the content of ABA indecreased and accumulated rapidly .The contents of endogenous hormones changed more and more significautly with the decrease of temper -ature.As the recovery time lengthened ,the contents of IAA,GA3 increased,but the contents of ABA decreased .