薬用サフランの球莖肥大に関する研究 : (第 1 報)植付の深さ, 生育温度, 施肥の影響について

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These experiments were carried out to make clear the culture conditions on the enlargement of saffron corm. Results obtained are summarized as follows : (1) Saffron corms were cultivated in four flames and each flame had deep (10cm) and shallow (3cm) planting plots. The three flames (B, C, D) were covered with vinyl film during Oct. 1∿Dec. 30(B), Jan. 3∿Mar. 3(C), and Mar. 3∿May. 1(D). respectivly, and the other one (A) was no-covering at all. Deep planting plant had remarkable growth than shallow planting. but there was not a wide difference among warm treatments. And shallow planting plant had few water content than deep one, therefore it should seem that the difference of the growth between the deep and shallow planting was not a effect of temperature, but soil water content. (2) The effect of non-fertilized culture on the growth of saffron was investigated by the sandculture. The growth of leaf of non-fertilized plant was heavily prevented, but it was not so much for the root. The new corm of non-fertilized plant enlarged as well as fertilized plant until about the middle of growing period. The new corm of non-fertilized plant had been became suitable size at the harvesting time, but it was inferiored to some degree than the new corm of fertilized plant.
神戸大学の論文