CAJ | 학술논문

以籼稻品种旱116、湘早籼32号为材料,不同质量分数(0%、5%、10%、15%、20%、25%)聚乙二醇(PEG6000)模拟自然干旱,研究水分胁迫下水稻腐胺(Put)、亚精胺(Spd)、精胺(Spm)含量的变化与抗旱性的关系.结果表明:水分胁迫下水稻幼苗Put、Spd和Spm含量明显上升,且旱116的上升幅度明显大于湘早籼32号,Put、Spd和Spm含量与根冠比呈正相关.回归分析结果表明,Put对湘早籼32号地上部干重,Spd对旱116地上部及湘早籼32号根部干重,Spm对旱116和湘早籼32号根部干重影响显著.
이선도품충한116、상조선32호위재료,불동질량분수(0%、5%、10%、15%、20%、25%)취을이순(PEG6000)모의자연간한,연구수분협박하수도부알(Put)、아정알(Spd)、정알(Spm)함량적변화여항한성적관계.결과표명:수분협박하수도유묘Put、Spd화Spm함량명현상승,차한116적상승폭도명현대우상조선32호,Put、Spd화Spm함량여근관비정정상관.회귀분석결과표명,Put대상조선32호지상부간중,Spd대한116지상부급상조선32호근부간중,Spm대한116화상조선32호근부간중영향현저.
Indica rice cultivars of Han116 and Xiangzaoxian32 were used as experimental materials with different concentration (0%, 5%, 10%, 15%, 20%, 25%)PEG6000, the relationship between change of polyamine contents and drought-resistance in rice seedlings under water stress was investigated. The results showed the contents of Put, Spd and Spm significantly increased under water stress, Han116 increased more markedly than Xiangzaoxian32, which was a positive Coγrelation between Put, Spd and Spm contents and root/shoot. Through regression analysis, Put, Spd and Spm were respectively led into by y_1=1.248E-04x_1+0.272, y_1=1.421E-05_x_2+0.240, y_2=-1.55E-05_x_2+4.922E-04_x_3+0.126, y_2=4.679E-04_x_3+3.923E-02 equations(x_1, x_2, x_3 respectively mean Put, Spd and Spm ,y_1 , y_2 respectively mean shoot and root dry weight ).