小春作物上冰核细菌种群动态研究  

Population Dynamics of Ice Nucleation Active Bacteria on Wintercrops

作　　者：韦建福[1] 张世光[1] 徐光华[1] 

机构地区：[1]云南农业大学

出　　处：《云南农业大学学报》2001年第3期173-174,202,共3页Journal of Yunnan Agricultural University

基　　金：云南省教委科学研究基金资助项目 (9712 12 6 ) ;云南省应用基础科学基金资助项目 (98C0 0 4M和 98C0 33M)

摘　　要：采用平板稀释分离计数法 ,在小春作物蚕豆、小麦和油菜生长期间 ,连续两年定点定期对冰核细菌种群数量动态变化进行检测。结果表明 ,在云南省昆明地区自然条件下 ,冰核细菌的数量最大密度出现在 2月中旬至 3月中旬 ,可达 9.2× 10 9CFU/ g。With dilution plating method, the population dynamic of ice nucleation active ( INA ) bacteria had been detected monthly at the same spot for two successive years during the growing season of wintercrops broadbean, wheat and rape, to determine the involvement of INA bacteria in the process of frost damage. Results shown that the highest population level of detectable INA bacteria could be up to 9.2×10 9 CFU/g in natural condition of Kunming area in Yunnan province from the middle of February to the middle of March.

关 键 词：小春作物 冰核细菌 种群动态 霜冻 

分 类 号：S425[农业科学—植物保护]