馬鈴薯塊茎の呼吸作用酵素力及びアスコルビン酸含有量に対する加里の影響に就て

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概要

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• In the previous paper the author has reported the fact that the potato tubers which were grown in potash deficient condition contained much less amount of starch than those in full nutrient state, and that the difference in the starch content of tubers under the two potash conditions above indicated was attributable to the quantity of potassium supplied in soil. Further, it was stated that the starch grains in the tubers was directly proportional to the amount of potassium. Since according to the author's opinion, the direct relationship between the accumulation of carbohydrate and the enzyme activity or respiration should exist, he thinks that it will be very interesting to ascertain whether different amounts of potassium will play by itself an active part on them or not. The present experiment was undertaken to prove the effect of potash on the respiration rates, activities of enzymes, and ascorbic acic contents in potato tubers. Two varieties used for the experiments were Danshakuimo and Snow Flake, and the procedure employed to get tubers has been outlined in the previous paper. The results are summarized as follows. (1) The potassium starved plants seemed to have a consistently higher respiration rates, and its respiratory quotient is greater than that of fully manured. (2) The reducing sugar content in the tubers of the potash deficient plants were markedly higher. (3) The potassium deprived plants had the greatest diastase activity in the tuber. (4) The invertase activity in the plants was higher in the potash starved or no manured conditions. (5) The peroxidase activity of the plants supplied with potassium was werker than that of the potash deprived plants. (6) Generally the activity of oxidase was greater in the potash deficient plants than in the control. (7) The activity of catalase was greater in the plants received with potassium than in the potash starved plants. (8) Plants grown under different potash conditions had almost the same activities of the petase. (9) Greater activity of ereptase in tubers occured in the case of potash deficiency. (10) The quantity of the ascorbic acid within tubers was directly proportional to the amount of potassium added in soil.

• 社団法人日本土壌肥料学会の論文
• 1941-03-25

著者

• 菅原 友太

  東京大学農学部

• 菅原 友太

  東京帝国大学農学部

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• 低酸素分圧下における種子の発芽に対する硝酸塩の影響
• 根の分離培養に対する硝酸塩の影響 (第99回講演会)
• 作物の根部に於ける酸素要求度に関する研究 : 第1報 作物根による硝酸鹽の生化学的還元と品種間差異について
• 作物の生育に対する土壌通気の影響 (第一報) : 土壌空気中に於ける酸素及び炭酸瓦斯濃度と馬鈴薯の生育・収量との関係に就て
• 海水及苦汁を加里の給源とせる二三作物の水耕に就て
• 馬鈴薯塊茎の呼吸作用酵素力及びアスコルビン酸含有量に対する加里の影響に就て
• 馬鈴薯塊茎の生産量形状及び炭水化合物の蓄積に及ぼす加里の影響
• 菠薐草のアスコルビン酸(ビタミンC)含有量に及ぼす施肥量の影響に就て
• 加里塩の濃度を考慮せる甘藷の培養比較研究

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