烟草科技2017，Vol.50Issue(2)：27-32,6.
新型通气苗盘对烟苗生长发育及生理特性的影响
Evaluation of novel ventilated seedling tray on growth and physiological characteristics of tobacco seedlings
摘要
Abstract
To improve floating seedling system for tobacco, tobacco seedling culturing experiments were conducted in a floating system with in-house designed novel ventilated seedling tray. By taking common seedling tray as a control, the effects of ventilated seedling tray on the emergence rate, botanical characters and activities of protective enzymes and nitrate reductase (NR) of tobacco seedling were studied. The results showed that comparing with the control, the time of seedling culturing in the ventilated seedling tray was shortened by 5 d and emergence rate increased by 3.67%; the leaf size, root development and comprehensive growth of tobacco seedlings were significantly improved. On the 35th, 45th and 55th days after sowing, the root vigor of seedling increased by 14.26%, 20.45% and 19.31%, respectively; chlorophyll contents and the activities of catalase, peroxidase, superoxide dismutase and NR significantly increased comparing with the control. Therefore, the novel ventilated seedling tray has shown a clear promoting effect on seedling growth.关键词
烟草/新型通气苗盘/漂浮育苗/出苗率/根系活力Key words
Tobacco/Ventilated seedling tray/Floating seedling system/Emergence rate/Root vigor分类
农业科技引用本文复制引用
朱大恒,王子腾,朱润琪,申永防,马轩,刘丽,陈辰,叶晓婉,肖春生..新型通气苗盘对烟苗生长发育及生理特性的影响[J].烟草科技,2017,50(2):27-32,6.基金项目
中国烟草总公司科技重点项目"烤烟高温逼熟形成机制、指标体系与防控技术研究"(110201402011) （110201402011）
郑州大学大学生创新创业训练计划资助项目"高浓度有机废水资源化利用生物工艺研究"(2015xjxm198). （2015xjxm198）
