水稲の胡麻葉枯病罹病に関する栄養生理的研究 : XII. 硫化水素が無機成分の吸収, 移行に及ぼす影響並びに其の生育との関係

概要

論文の詳細を見る
(1) Absorption of P_2O_5 was remarkably inhibited just at the same degree as K_2O. by the addition of H_2S to nutrient solution when H_2S was given at the first time to the plant which had been grown without H_2S, whereas it was little inhibited or rather promoted after continuous addition of H_2S (Fig. 1). (2) Translocation of some nutrients such as CaO and SiO_2 was assumed to be retarded in part by the decreased transpiration dud to H_2S. (3) From the result of a water culture experiment in which H_2S was added during the period from the stage of vigorous tillering stage to that of young-ear formation, it was found that the addition of H_2S gave the most unfavorable effect on the yield (weight of ears per plant) and on the resistance to the disease with the plant grown in complete nutrient solution, because of the inhibition in the absorption of many nutrients, whereas it gave less effect with the plant grown in the solutions lacking in N, K_2O, SiO_2 and MnO, because absorption-inhibition of lacking nutrients could not take place here (Fig. 2). Accordingly the decrease of yield and resistance to the disease caused by H_2S seems to be mainly attributable to the absorption-inhibition of some nutrients such as N, K_2O, SiO_2 and MnO at least in this experiment.
日本作物学会の論文
1957-07-01