日本作物学会紀事
Online ISSN : 1349-0990
Print ISSN : 0011-1848
ISSN-L : 0011-1848
甘藷の生理的特性に関する研究 : (第4報) 育苗期間中に於ける種藷内窒素化合物の消長について
中 潤三[ロウ]大森 浩
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ジャーナル フリー

1954 年 23 巻 1 号 p. 37-38

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In order to obtain some informations on the behavior of translocation and storage of nitrogen compounds in the seed tuber of sweet potatoes during the hot-bed nursery period, the present investigation was undertaken with the variety "Gokoku" as material. The experimental results obtained may be summarized as follows: 1. At the sprouting stage of the seed tubers, the protein-N contents fluctuated slightly, while the soluble-N contents increased considerably; and consequently the total-N contents became larger as compared with those at the time of imbedding. 2. Being accompanied with the deveolpment of sprout, both the protein and sluble-N contents decreased remarkably, which in turn caused a rapid falling of the total-N contents in the seed tuber. 3. In the later stages of growth in the hot-bed nursery, both the protein-and soluble-N contents increased steeply and the total-N contents rose consequently.
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