Parthenocarpy and Self- and Cross-incompatibility in Ten European Pear Cultivars
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- Moriya Yuki
- Graduate School of Science and Technology, Kobe University
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- Takai Yoshihiro
- Graduate School of Science and Technology, Kobe University
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- Okada Kazuma
- Graduate School of Science and Technology, Kobe University
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- Ito Daiyu
- Fujisaki Farm, Faculty of Agriculture and Life Science, Hirosaki University
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- Shiozaki Yunosuke
- Fujisaki Farm, Faculty of Agriculture and Life Science, Hirosaki University
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- Nakanishi Tetsu
- Graduate School of Science and Technology, Kobe University Faculty of Agriculture, Kobe University
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- Takasaki Takeshi
- Faculty of Agriculture, Kobe University
Bibliographic Information
- Other Title
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- セイヨウナシ10品種における単為結果性と自家および交雑不和合性
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Abstract
Self- and cross-incompatibility in European pear (Pyrus communis L.), which is estimated by the fruit set and seed formation, is yet unclear. We carried out self-, cross- and non-pollinations with one flower per cluster on 10 European pear cultivars, and estimated their parthenocarpic potential, and self- and cross-incompatibility. Most cultivars exhibited parthenocarpy, which suggests that the fruit set is not a suitable criterion for distinguishing incompatibility from compatibility. However, clear judgment could be provided by using the self-incompatibility (SI) index, (the number of viable seeds per flower obtained from test pollination / the number of viable seeds per flower resulting from compatible cross-pollination) × 100, as a new criterion. Based on this index, ‘Grand Champion’ has proven to be partially self-compatible, whereas others were classified as self-incompatible. Traits of the seeded fruits, such as weight, size, and soluble solids content, were superior to those of the parthenocarpic fruits. Thus, cross-compatible pollination is necessary for a stable fruit set and production of large, good quality fruits in cultivars with a high parthenocarpic potential. Two cross-incompatible combinations were found between ‘Flemish Beauty’ and ‘Starkrimson’, and ‘Bartlett’ and ‘Seigneur d' Espéren’, respectively.
Journal
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- Journal of the Japanese Society for Horticultural Science
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Journal of the Japanese Society for Horticultural Science 74 (6), 424-430, 2005
THE JAPANESE SOCIETY FOR HORTICULTURAL SCIENCE
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Details 詳細情報について
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- CRID
- 1390282681278819840
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- NII Article ID
- 110002322363
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- NII Book ID
- AN00025257
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- ISSN
- 1880358X
- 00137626
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- NDL BIB ID
- 7729619
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- Text Lang
- en
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- Data Source
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- JaLC
- IRDB
- NDL
- Crossref
- NDL-Digital
- CiNii Articles
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- Abstract License Flag
- Disallowed