培養液溶存酸素濃度とトマト根の通気間隙との関係

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  • 蔬菜水耕栽培の実用化に関する研究 IX : 培養液溶存酸素濃度とトマト根の通気間隙との関係(農学部門)
  • バイヨウエキ ヨウゾン サンソ ノウド ト トマト コン ノ ツウキ カンゲキ ト ノ カンケイ
  • Studies on production of vegetable crops in water culture IX : Root porosity of tomato roots as affected by oxygen concentration in nutrient solution (Agriculture)

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Abstract

Root porosity was measured by the pycnometer method, of the tomato variety "Ohgata-Fukujyu" which had been water-cultured in five levels of oxygen concn in the culture solution. Root porosity which averaged from approximately 2.2 to 4.2 percent of the root volume, was, in general, higher in roots which had been grown in lower dissolved oxygen concn. This tendency was valid for the measurements made on plants of different growth stages and in different seasons, although the value was affected by these factors.

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