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短小芽孢杆菌BPS48对马铃薯生长的影响

2017-05-30李芳弟,王利立,王鹏,郭天顺,杨晨,窦俊焕,齐小东,罗朝霞,颉炜清,赵中梁,吕汰

甘肃农业科技 2017年11期
关键词:生长影响

李芳弟,王利立,王鹏,郭天顺,杨晨,窦俊焕,齐小东,罗朝霞,颉炜清,赵中梁,吕汰

摘要:以天薯11号为指示品种,研究了短小芽孢杆菌(Bacillus pumilus)BPS48对马铃薯生长期间病害及产量的影响。结果表明,马铃薯用短小芽孢杆菌(Bacillus pumilus)BPS48可湿性粉剂300倍液灌根后,病毒病发病率较轻;折合产量最高,为14 200 kg/hm2,较空白对照增产2 250 kg/hm2,增产率18.8%。用芽孢杆菌可湿性粉剂45 g/L浓度下浸种30 min后,马铃薯折合产量为10 600 kg/hm2,较空白对照减产1 350 kg/hm2,减产率11.3%。

关键词:短小芽孢杆菌(Bacillus pumilus);马铃薯;生长;影响

中图分类号:S532 文献标志码:A 文章编号:1001-1463(2017)10-0036-02

doi:10.3969/j.issn.1001-1463.2017.10.011

The Influence of Bacillus pumilus BPS48 on Potato Growth

LI Fangdi 1,2, WANG Lili 3, WANG Peng 1,2, GUO Tianshun 1,2, YANG Chen 1,2, DOU Junhuan 1,2, QI Xiaodong 1,2, LUO Zhaoxia 1,2, XIE Weiqing 1,2, ZHAO Zhongliang 1,2, LV Tai 1,2

(1. Tianshui Institute of Agricultural Sciences, Tianshui Gansu 741001, China; 2. China Agriculture Research System of Tianshui Potato Comprehensive Experimental Station, Tianshui Gansu 741001, China; 3. Aagronomy of Gansu Agriculture University, Lanzhou Gansu 730070, China)

Abstract:To clear the influence of Bacillus pumilus BPS48 on the period of disease and yield during potato growth, this study set up three processing methods: control (CK), Bacillus pumilus irrigation root and immersion seed, investigating and analyzing the disease index of potato growth period (late blight, virus disease, and ring rot) and yield of Tianshu11.The results showed that the conduct of BPS48 immersion seed had the lightest disease index of plants and tubers,followed by irrigation,and finally to control;Applying BPS48 pouring the root of Tianshu11 300 times liquid had the highest yield,946.7 kg(CK) than control 796.7 kg,increase 18.2%. In the future, the best seems of Bacillus pumilus would be discussed in further study.

Key words:Bacillus pumilus;Potato

短小芽孢桿菌(Bacillus pumilus)是一类重要的生防菌,能产生肽类、蛋白质、吡嗪类和酚类等多种抗菌物质[1 ],具有防病和促进生长双重功效。短小芽孢杆菌不仅能诱导植物产生抗病性,还能在植物根尖定殖并形成生物膜,促进植物对营养物质的吸收[2 - 4 ],沈新迁等[5 ]的研究表明,短小芽孢杆菌可以在水稻幼苗根际土壤中存活15 d 以上,显示了该菌在植物病害的生物防治方面的良好应用前景。马铃薯病虫害的防治长期以来一直以化学防治为主,但由于病菌群体丰富的遗传多样性,作物逐渐会对防治药物表现出一定的抗药性,如马铃薯晚疫病菌对甲霜灵抗药性已普遍出现。因此,面对作物病虫害的持续侵染,生物防治将成为重要途径。

1 材料与方法

1.1 试验材料

指示马铃薯品种天薯11号,为天水市农业科学研究所育成新品种。供试菌剂为惟和芽孢杆菌可湿性粉剂(合肥惟和生物科技有限责任公司),有效成分为短小芽孢杆菌BPS48,含量为10亿CFU/g。……

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