甘藷の乾物生産に関する研究 : 第5報乾物生産特性の品種間差異 : (1) 乾物生産と養分吸収並びに乾物分配率の品種間差異

概要

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Concentration of the three major nutrient elements in each part on dry matter basis and the distribution ratio of dry matter produced by sweet potato were determined using four varieties. In the early growing stage, it was obviously recognized that there were differences among the varieties in the distribution ratio, i.e. the percentage of the increasing weight of dry tuberous roots to the increasing amount of total dry weight; e. g. Norin No. 1 and Okinawa No. 100 showed high ratio, and Kanto No. 48 and Ibaragi No.1 showed low ratio. It appeared that most of the differences in distribution ratio among the varieties were caused by differences in nitrogen concentration in whole plant (Fig. 4). The varietal differences in nitrogen concentration were chiefly due to variation in the ratio of root dry-weight to total dry-weight as shown in figure 5.
日本作物学会の論文
1964-07-30