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  • Author or Editor: Kyeong Ho Chung x
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Jung Hyun Kwon, Ji Hae Jun, Eun Young Nam, Kyeong Ho Chung, Ik Koo Yoon, Seok Kyu Yun and Sung Jong Kim

Being self-incompatible, most Asian plums should be planted with a compatible pollinizer to produce fruits. Therefore, the selection of an adequate pollinizer is essential when new plum cultivars are released. To select a suitable pollinizer for ‘Summer Fantasia’ plum, the S genotype, cross-compatibility, pollen viability, and flowering time of five candidate cultivars were evaluated. Using polymerase chain reaction (PCR) analysis, the S genotype of ‘Summer Fantasia’ was determined as S a S c, which was expected to be compatible with other S genotypes. To test cross-compatibility, the trees were covered with caging net to prevent unintended pollination, and pistils were hand pollinated without emasculation. Fruit set percentage was calculated 10 weeks after pollination. The fruit set percentage resulting from the cross between ‘Summer Fantasia’ and ‘Taiyo’ (S b S c) was 13.8%, whereas that resulting from other combinations was less than 5.0%. Pollen germination percentage was investigated to monitor pollen viability; it varied yearly among cultivars, although ‘Formosa’ (10.6%) and ‘Taiyo’ (13.8%) showed the highest pollen germination percentages among the cultivars. When averaged over three years and two locations, ‘Summer Fantasia’ bloomed 2–3 days after ‘Akihime’, ‘Formosa’, ‘Oishiwase’, and ‘Purple Queen’. Blooming period of ‘Summer Fantasia’ and ‘Taiyo’ overlapped almost entirely. Overall, the results indicated that ‘Taiyo’ was the most suitable pollinizer for ‘Summer Fantasia’.

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Ji Hae Jun, Jung Hyun Kwon, Eun Young Nam, Kyeong Ho Chung, Ik Koo Yun, Seok Kyu Yun, Yong Bum Kwack, Sung Jong Kim and Sang Jo Kang

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Eun Young Nam, Ji Hae Jun, Kyeong Ho Chung, Jung Hyun Kwon, Seok Kyu Yun, Ik Koo Yun and Kang Hee Cho

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Ji Hae Jun, Jung Hyun Kwon, Eun Young Nam, Kyeong Ho Chung, Ik Koo Yun, Seok Kyu Yun, Yong Bum Kwack, Sung Jong Kim and Sang Jo Kang

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Eun Young Nam, Jung Hyun Kwon, Ji Hae Jun, Kyeong Ho Chung, Seok Kyu Yun, Sung Jong Kim and Yun Su Do

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Ji Hae Jun, Eun Young Nam, Kyeong Ho Chung, Seok Kyu Yun, Jung Hyun Kwon, Ik Koo Yun, Yong Bum Kwack, Sung Jong Kim and Kang Hee Cho