食用カンナにおける不定根の呼吸速度

日本作物学会紀事

今井 勝¹  細井 淳¹ 

[1] 明治大学農学部

关键词: Canna edulis;    Gas-phase oxygen electrode;    気相型酸素電極;    Oxygen consumption rate;    酸素消費速度;    Vertical root;    åž‚ç›´æ ¹;    Horizontal root;    水平根;   

DOI  :  10.1626/jcs.72.227

学科分类：农业科学（综合）

来源: Nihon Sakumotsu Gakkai / Crop Science Society of Japan

【 摘 要 】

The adventitious roots of edible canna (Canna edulis Ker-Gawl.), are classified as the ‘vertical’ roots, which penetrate deep in soil, and the ‘horizontal’ roots, which run shallow underground. Most of the vertical roots are comprised of the basal ones, which generate in pairs at the nodal part of rhizome. From the viewpoint of functional differentiation of the two types of roots, their respiration rates were compared at different stages of growth, distances from stock and direction of root elongation by the use of a gas-phase oxygen electrode system. Root respiration rates decreased with age, but a difference between the two types of roots was not observed except in the early growth stage. Root activity, such as nutrient absorption in this crop, was considered to be performed mainly by a large quantity of horizontal roots rather than the qualitative difference between horizontal and vertical roots.

【 授权许可】

Unknown