| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,900,000)
Fiscal Year 2006: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 2005: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 2004: ¥2,800,000 (Direct Cost: ¥2,800,000)
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| Research Abstract |
The genus Pelargonium is large, with about 230 species arranged into groups of related species and classified 11-16 sections.The present study was carried out 1) to presume cross affinity relationship among wild species of genus Pelargonium according to elucidate the behavior of pollen tubes in the style by means of the fluorescence microscope, on the base of these result, 2)to produce efficiently the inter-species and-sectional hybrids lines comprising a great variety on the characteristics, including flower color. The materials are wild species belong to 9 sections, i.e., Hoarea, Pelargonium, Polyactium, Ligularia, Jenkinsonia, Campylia, Glaucophyllum, Cortsusina, Myrrhidium. The cross affinity among wild species is peculiar to the cross combination. All of them producing F_1 plants by crossing and by means of ovule culture technique estimated to hybrids on the base of the morphological characteristics(plant habits, flower organ, leaf, essential oil ).F_1 plants obtained from interspecies hybridization in the section Hoare showed a great variety on the flower color, producing by the variety of the value of L^* a^* b^*. Interspecies hybridization between the sec. Hoarea and the sec. Pelargonium was easier and the later was more successful as a female parent than as a male parent. Lines comprising a great variety on the characteristics, including flower color, producing in this study are very useful for breeding materials in Pelargonium
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