聊城大学学报（自然科学版）Issue(3)：56-59,4.
不同供钾水平对大白菜幼苗生长和根系形态的影响
Effect of Different Potassium Levels on the Growth and Root Morphology of Chinese Cabbage Seedling
摘要
Abstract
Effects of five different potassium (0 mM ,2 .5 mM ,5 .0 mM ,7 .5 mM and 10 .0 mM ) on the grow th and root morphology index of Chinese cabbage seedling were studied using a pot experiment . The results showed that :with the increase of potassium concentration ,the shoot fresh weight and the whole plant fresh weight of Chinese cabbage seedlings were increased at first and then decreased ,and the highest value occured at the 5 mM .Total root length ,total surface area ,the length and surface area of fine roots (diameters≤0 .4 mm) of Chinese cabbage seedling treated by 5 mM were significantly high‐er than that of other treatments .Moderate levels of potassium to improve total root length ,total surface area ,especially the length and surface area of fine root (diameters≤0 .4 mm) ,thus contributing to the grow th of Chinese cabbage seedling .关键词
钾/大白菜/生长/根系形态Key words
Potassium/Chinese cabbage/grow th/root morphology分类
农业科技引用本文复制引用
常海娜,周静,宋娇敏,司东霞,李海云..不同供钾水平对大白菜幼苗生长和根系形态的影响[J].聊城大学学报（自然科学版）,2015,(3):56-59,4.基金项目
农业部公益性行业（农业）科研专项（201203013）；山东省高等学校科技计划项目（J13LF03）；聊城大学文化创新基金项目 （）
