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[目的]为明确壳聚糖与有机硅对番茄抗灰霉病菌能力的影响。[方法]采用叶面喷施法,通过测定在 4 个处理下,即空白对照、灰霉病菌处理、壳聚糖+灰霉病菌处理、壳聚糖+有机硅+灰霉病菌处理,番茄的抗氧化酶活性来研究壳聚糖和有机硅对番茄抗氧化酶活性的影响。[结果]壳聚糖+有机硅+灰霉病菌处理组和壳聚糖+灰霉病菌处理组与灰霉病菌处理相比可提高番茄幼苗叶片中抗氧化酶活性,在第 6 天,壳聚糖+有机硅+灰霉病菌处理组和壳聚糖+灰霉病菌处理组的 PAL、SOD、POD、PPO、CAT 活性比灰霉病菌处理组分别提高 27.36%、52.07%、43.55%、82.02%、71.82%和 18.91%、30.22%、57.14%、38.09%、53.64%。[结论]壳聚糖和有机硅可增加番茄幼苗感染灰霉病后抗氧化酶的活性。
[Objective] The research aimed to clarify the effect of chitosan and silicone on the ability of tomato against Botrytis cinerea. [Method] The foliar spray method was used to determine the effects of chitosan and Botrytis cinerea, chitosan + Botrytis cinerea, tomato treated by four treatments, ie, blank control, Botrytis cinerea, chitosan + Botrytis cinerea, Antioxidant enzyme activities to study the impact of chitosan and silicone on antioxidant enzyme activities in tomato. [Result] Compared with Botrytis cinerea, the chitosan + silicone + Botrytis cinerea and chitosan + Botrytis cinerea groups could increase the antioxidant enzyme activity in leaves of tomato seedlings. On the 6th day, The activities of PAL, SOD, POD, PPO and CAT in the treatments of sugar + silicone + Botrytis cinerea and chitosan + Botrytis cinerea increased by 27.36%, 52.07%, 43.55%, 82.02% , 71.82% and 18.91%, 30.22%, 57.14%, 38.09% and 53.64% respectively. [Conclusion] Chitosan and silicone could increase the activity of antioxidant enzyme in tomato seedlings infected with Botrytis cinerea.