摘要
为探究黄酮类化合物对烟草青枯病田间的防控效果,采用槲皮素(灌根+喷雾)、芦丁(灌根+喷雾)、槲皮素+芦丁(灌根+喷雾)处理进行田间试验,并用农用链霉素灌根和清水处理作对照,通过分析各处理烟草根系生长情况、农艺性状、青枯病发生情况和烟叶品质,系统评价了黄酮类化合物对烟草青枯病的田间防控效果.结果表明,槲皮素和芦丁混合施用在团棵期可以在一定程度上显著促进烟株根的生长;槲皮素+芦丁处理在打顶后的株高显著高于其他处理,且槲皮素+芦丁和农用链霉素对青枯病的田间防控效果要好于槲皮素或芦丁单独施用.在烟叶的烘烤质量上,农用链霉素处理烤烟的质量最优,其次为槲皮素处理.本研究为烟叶生产上烟草青枯病的防治以及植物源农药开发提供新的理论依据.
In order to provide theoretical guidance for the prevention and control of tobacco bacterial wilt in tobacco cultivation and for the development of plant-derived pesticides,a field experiment was carried out,in which tobacco plants were treated with quercetin or/and rutin by root drenching or/and foliar spray with root drenching of agricultural streptomycin and water treatment as the control.The root growth and other agronomic characters of the tobacco plants,the occurrence of wilt disease and the quality of tobacco leaves of the treatments were analyzed,and the field control effect of flavonoids for tobacco bacterial wilt was systematically evaluated.The results showed that the mixed application of quercetin and rutin in the rosette stage could significantly promote the growth of the root of the tobacco plant,and the plant height after detopping was significantly higher in the quercetin + rutin treatment than that in other treatments,and the field control effect of quercetin+rutin and agricultural streptomycin on bacterial wilt was better than that of quercetin or rutin application alone.The quality of flue-cured tobacco leaves treated by agricultural streptomycin was the optimal,followed by the quercetin treatment.
引文
[1]孙思,韦爱梅,伍慧雄,等.青枯病的化学与生物防治研究进展[J].江西植保,2004,27(4):157-162.
[2]郭艳华.槲皮素的化学改性及抑菌作用比较研究[J].中国酿造,2013,32(9):75-78.
[3]谭君,王伯初,祝连彩.槲皮素金属配合物的药理作用研究进展[J].中国药学杂志,2006(22):1688-1691.
[4]夏玉明,朴惠善,罗惠善.槲皮素铜配合物的合成及其活性研究[J].延边大学学报(自然科学版),2000(1):72-73,78.
[5]郭艳华,许国权,李艾华,等.天然黄酮芦丁的化学改性及抑菌作用[J].江汉大学学报,2013,41(2):31-35.
