温州ミカンの光合成産物の転流および分配に関する研究-2-根の生育環境の相違が14Cの転流に及ぼす影響〔英文〕
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Effects of water stress and H-ion concentration on the rate of translocation of 14C-labeled photosynthates in Satsuma mandarin trees were studied.When the root growth was suppressed, translocation to the remaining plant parts (growing areas) was decreased and more 14C was accumulated in the leaves.In the plot of pH 3.0 a little decrease in the rate of translocation to fruits was observed, while in the plot of water stress the accumulation of 14C in the juice was heavily decreased.Water stress caused an increase in total sugar concentration of the juice. It seems likely that this was partly a result of the concentration effect arisen from water stress. However, in this case other factors such as polisacharide metabolism may also play an important role in the process of sugar accumulation in the juice.
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