@article{oai:soar-ir.repo.nii.ac.jp:00011170, author = {宮崎, 義光}, journal = {信州大学農学部学術報告}, month = {Mar}, note = {1) In the present experimetns at Ehimo Prefecture 24 varieties of peanut were used and the following results were obtained. Flowering of the Spanish and valeucia type peanuts was earlier than that of the Virginia type, and number of days from sowing to flowering became smaller as the date of sowing was prolonged. Increase in the number of flowers per plant was found to be expressed by the Roberlson' s formula. 2) The growth curve of the variety Miyazaki-zairai and Southern Cross were compared with the curve of flower increase. In Miyayaki-zairai sowed early (25th, April), the date of maximum growth rate was nearly the same to that of the maximum inereasse in flower numbar. But the latter date was later than the former date when the Miyazaki-zairai was sown on days after 5th May and Sothern Cross was sown on 25th Apil and on days after 25th May. 3) From the present studies on the growth, the flowering and the yield of seeds of peanut it was concluded that the optimum date of sowing is 25th April in Miyazaki-zairai and 15th May in Southern Cross. 4) In Southern Cross the phosphorous manure was more effective to the yields of seeds than the nitrogen and the optimum pH range for the growth was between 5.5 and 7.9., Article, 信州大学農学部学術報告 2: 30-48(1953)}, pages = {30--48}, title = {落花生の生長と開花に關する硏究}, volume = {2}, year = {1953} }