热带作物学报2017，Vol.38Issue(3)：421-425,5.DOI:10.3969/j.issn.1000-2561.2017.03.006
栽培稻和普通野生稻居群根表铁膜形成能力的比较研究
Comparing Iron Plaque Formation on Roots of Different Rice Cultivars and Oryza rufipogon Populations
摘要
Abstract
Iron plaque on roots is an indicator of root oxidation potential of Asian cultivated rice,Oryza sativa L.In order to determine the root oxidation potential of O.rufipogon Griff.,iron plaque formation on the roots of five rice cuhivars and two populations of O.rufipogon was investigated using hydroponic experiments.Iron plaque was induced by exposing the roots to a Kimura B nutrient solution supplemented with 0.532 mmol/L FeSO4 for 12 h.The results indicated that the O.rufipogon populations had higher root porosity,but lower content of iron plaque on roots compared with the rice cultivars.The root porosity of all tested plants was not correlated with the content of iron plaque on their roots,which was possibly attributed to difference in number of lateral roots on primary roots.关键词
铁膜/根孔隙度/亚洲栽培稻/普通野生稻Key words
iron plaque/root porosity/Oryza sativa/Oryza rufipogon分类
农业科技引用本文复制引用
黄剑冰,任杰,唐璐,但建国..栽培稻和普通野生稻居群根表铁膜形成能力的比较研究[J].热带作物学报,2017,38(3):421-425,5.基金项目
国家自然科学基金项目(批准号:31260118). （批准号:31260118）
