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为明确超敏蛋白对烟草黄瓜花叶病毒(Cucumber mosaic virus,CMV)的诱导抗性及其生长、品质的影响,采用半叶枯斑法和田间试验研究了10%超敏蛋白对枯斑三生烟和普通烟的诱导抗性及促生作用,并分析了对烤烟经济性状和内在质量的影响。结果表明,10%超敏蛋白在活体外对CMV无钝化作用,但预防、治疗效果显著,接种前48 h喷施预防效果达75.70%,接种后24 h喷施治疗效果达65.45%,均显著高于对照;10%超敏蛋白处理后烟草的株高、茎围、最大叶面积均高于其它处理,单位产量比20%吗啉胍·乙铜可湿性粉剂处理增产211.8 kg/hm2,增值3 519.2元/hm2;经10%超敏蛋白处理后的烤烟化学成分均处于优质烟的适宜质量分数范围内。表明超敏蛋白不仅有利于提高烟草抗性和促进烟株生长,且可以明显提高烟叶经济效益和烟叶内在质量。
In order to clarify the effect of hypersensitive protein on induced resistance of Cucumber mosaic virus (CMV) and its growth and quality, we studied the effect of 10% hypersensitive protein Induced tobacco and common tobacco, and analyzed the effects on economic traits and intrinsic quality of flue-cured tobacco. The results showed that 10% hypersensitive protein had no passivation effect on CMV in vitro, but the preventive and curative effect was significant. The preventive effect of spraying 10% hypersensitive protein was 75.70% at 48 h before inoculation and 65.45% at 24 h after inoculation, both Significantly higher than the control; plant height, stem circumference and maximum leaf area of tobacco treated with 10% hypersensitive protein were all higher than those of other treatments, and the yield of 211 mg / hm2 was increased by 20% Added value of 3 519.2 yuan / hm2; chemical composition of flue-cured tobacco treated with 10% hypersensitive protein were within the appropriate quality range of good quality tobacco. It indicated that the hypersensitive protein not only helps to improve tobacco resistance and promote the growth of tobacco plants, but also can significantly improve the economic efficiency of tobacco leaves and tobacco internal quality.