中国烟草科学2019，Vol.40Issue(3)：24-30,7.DOI:10.13496/j.issn.1007-5119.2019.03.004
坏损外担菌培养液对烤烟幼苗生长及主要生理特性的影响
Effects of Exobasidium vexans Liquid Culture on the Growth and Main Physiological Characteristics of Tobacco Seedlings
摘要
Abstract
To investigate the effects of Exobasidium vexans liquid culture on the growth and physiological characteristics of tobacco seedlings, experiments were carried out to study the effects of different concentrations [the original solution, 1/10 original solution, 1/50 original solution,1/100 original solution]of E. vexans liquid culture on growth of leaves, stems and roots, chloroplast pigment, nitrate reductase (NR) activity and root activity of tobacco seedlings. On the 5th day, the maximum leaf length and root fresh mass of the 1/50 original solution were significantly different from that of the original solution, and the stem height, shoot fresh mass and content of Chl b were significantly higher than those of other treatments and the control. On the 10th day, the maximum leaf length and width, leaf area, stem height, stem circumference, chlorophyll a and carotenoid content of 1/50 original solution were the highest with significant difference from the original solution, 1/100 original solution and the control. The NR activity and root activity of 1/50 original solution were the highest and significantly higher than the original solution and the control. On the 15th day, the maximum leaf length and width, leaf area, stem height, shoot fresh mass, NR activity and root activity of 1/50 original solution were the highest with significant difference from the other treatments and the control. But the stem circumference, root fresh mass and chlorophyll a content of 1/50 original solution were significantly higher than that of the original solution, 1/100 original solution and control. The effects of different concentrations of E. vexans liquid culture were different on the growth and physiological characteristics of tobacco seedlings. The growth of tobacco seedlings was the best in 1/50 original solution.关键词
坏损外担菌/烤烟幼苗/生长/生理特性Key words
Exobasidium vexans/tobacco seedlings/growth/physiological characteristics分类
农业科技引用本文复制引用
LI Chunli,PENG Lijuan,LI Jiye,PAN Mingjin,LIU Guoqin..坏损外担菌培养液对烤烟幼苗生长及主要生理特性的影响[J].中国烟草科学,2019,40(3):24-30,7.基金项目
贵州省烟草公司项目"真菌培养液对烤烟上部叶烟碱调控技术研究"{黔烟科[2015]13 号} （）
贵州省烟草公司遵义市公司项目"基于烤烟井窖式移栽的托盘育苗技术研究"(2016-03) （2016-03）
贵州省教育厅项目"贵州省烟草品质遗传改良与生物转化科技创新人才团队建设"{黔科合人才团队[2015]4011号} （）
