落花生子實の發育に關する研究 : 第2報 油脂生成に及ぼす土壤水分の影響

抄録

In this study it was made to clear the effect upon the seed development, especially upon the oil contents, Iodine Value and protein content, changing the soil-moisture as just after flowering or 56 days later (as the Iodine Value begins to turn). The results of this experiments summarized are as follows : 1. Putting under dry condition as 30% moistured soil after flowering, the growth of main stem in retarded subsequently. With increase of soil-moisture 30% to 50%, the elongation is recognized. 2. Being under dry condition after flowering, the number of flowers slighty decrease. 3. The elongation of gynophore is slow under dry condition, but as soon as reached to soil, the fruit are developed quickly. 4. The peanut crops cultivated under well-moistured soil grow better than under dry condition. 5. The seeds on the peanut crops grown under 50% moistured soil are well developed than 3O% condition. 6. The oil content of the seed produced under well-moistured soil is larger than dry condition, while on the protein content is contrary. 7. The Iodine Value of the oil produced under less-moistured soil is higher than more-moistured.