紫外线辐照对谷子种子染菌率及发芽的影响
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摘要
部分谷子种子在发芽过程中,由于自身携带微生物并且发芽环境温热潮湿,会发生微生物大量繁殖的状况,不但会侵染其他发芽的种子,而且还会严重影响种子整体的发芽率,从而影响试验结果。试验采用紫外线辐照的方法对谷子种子进行灭菌处理,通过改变辐照的时间发现当照射时间超过140 min之后,杀菌效果较好,染菌率为14%~15%,且发芽率也有小幅增加。
In germination process, the propagation of microbes are observed in some millet seeds due to their own micro-organisms and the warm and humid germination environment, which not only infects other germinating seeds but also seriously affects the seed germination rate and the experimental results. In this study, the millet seeds were sterilized using ultraviolet irradiation by changing the time of irradiation. The results showed that when the irradiation time exceeded 140 min, better bactericidal effect was observed with microbe contamination rate of 14%~15% and slightly increased germination rate.
In germination process, the propagation of microbes are observed in some millet seeds due to their own micro-organisms and the warm and humid germination environment, which not only infects other germinating seeds but also seriously affects the seed germination rate and the experimental results. In this study, the millet seeds were sterilized using ultraviolet irradiation by changing the time of irradiation. The results showed that when the irradiation time exceeded 140 min, better bactericidal effect was observed with microbe contamination rate of 14%~15% and slightly increased germination rate.
引文
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[2]张燕,鲁站会,李里特,等.杀菌剂对发芽糙米富集γ-氨基丁酸的影响[J].食品科技,2006(5):94-97.
[3]YOON C G,JUNG K W,JAN J H,et al.Microorganism repair after UV-disinfection of secondary-level effluent for agricultural irrigation[J].Water Environment,2007,5(1):57-62.
[4]GOMEZ M,PLAZA F,GARRALON G,et al.A comparative study of tertiary wastewater treatment by physicochemical-UV process and macrofiltration-ultrafilt ration technologies[J].Desalination,2007,202(1/2/3):369-376.
[5]杨颜霞,韩建国,李寿田,等.种带真菌对结缕草种子发芽和活力的影响[J].种子,2006,25(10):16-19.
[6]陈南凯.农作物种子紫外线处理增产技术[J].农业科技通讯,1993(5):4.
[7]郭彦,杨洪双,梁明.紫外线照射对水稻种子萌发的影响[J].江苏农业科学,2011,39(3):89-90.
[8]范军,刘源,李娟,等.采用紫外线照射控制发芽糙米细菌总数研究[J].粮食与油脂,2012(9):20-22.
[9]张宾,段智英,杨苗.He-Ne激光辐照对小麦陈种子萌发影响的研究[J].天津农业科学,2011,17(2):110-112.