| Budget Amount *help |
¥1,200,000 (Direct Cost: ¥1,200,000)
Fiscal Year 1994: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1993: ¥800,000 (Direct Cost: ¥800,000)
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| Research Abstract |
1. In order to obtain basic data on breding of tree peony, principal factor and cluster analysis were conducted. In result, main factor was closely related with flower stalk and leaf length. Cluster analysis showed that a hybrid cv. Gunpouden between cv. Hanadaijin and Kamadafuji belonged to the same cluster. Interspecific yellow cultivars differed clearly from the other cultivars. Chinese cultivar, Meijonohomare also distinguished from Japanes cultivars. 2. Forced flowering of eary late December was studied. Yield in 4-year-old plants with large roots was higher than that in 2-year-old plants with small roots. Floweing in late December was possible, using winter-blooming cutivar treated with low temperature. 3. Flower pigments in tree and herbaceous peony were peonidin-3-glusoside, peonidin3,5-glucoside, cyanidin-3-glucoside, cyanidin-3,5-glucoside, pelargonidin-3-glucoside and pelargonidin-3,5-glucoside.Flowers with deep color has many kinds of pigments. Clutiver classification of herbaceous peony was possible from difference of patterns in flavone and flavonoid. 4. Sprouting of Japanse cultivars were between May 1 and 5, while that of Chinese cultivars were late April. 5. Optimum temperature of pollen geramination in Japanese and Chinese cultivars 15ﾟC.6. Seeds were not obtained from cross between tree and hearbaceous peony.
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