稻根に對するアンモニア鹽の作用に關する研究 : (第1報) 根の生長並に原形質流動

概要

論文の詳細を見る
1. The growth of roots of rice seedlings are inhibited as the concentration of (NH_4)_2SO_4 in wellwater increases. The inhibiting effect of (NH_4)_2SO_4 is less in the "Shinriki" variety (high yield and susceptible to rice blast) as compared to the "Kameji" variety (low yield and insusceptible to rice blast) in wellwater as well as in nutrient solution with the pH controlled at 5.5 or 7.0. 2. High concentration of (NH_4)_2SO_4 which inhibits the growth of roots also inhibits the protoplasmic streaming in root hairs. The rate of streaming increases somewhat in adequately diluted solution (0.001 mol) of (NH_4)_2SO_4 which was also found to be the optimum concentration for top growth. 3. When pH values of wellwater are distinctly low, the growth of roots and protoplasmic streaming are inhibited with the effects being less in the "Shinriki" variety as compared to the "Kameji" variety.
日本作物学会の論文
1950-08-30