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The Development of a Small and Hard Root-Bearing Inbred Line, ‘Wonkyo10045ho,’ with Weak Self-Incompatibility (Raphanus sativus L.)
뿌리가 작고 근육이 단단하며 채종이 잘 되는 무 계통 ‘원교10045호’ 육성
Korean J Breed Sci 2019;51(1):48-54
Published online March 1, 2019
© 2019 Korean Society of Breeding Science.

Ha-Young Jang1, Min Young Park2, Jung-Soo Lee3, and Suhyoung Park2*
장하영1, 박민영2, 이정수3, 박수형2*

1Gwangju Institute of Science and Technology, Gwangju 61005, South Korea
2Vegetable Research Division, NIHHS, RDA, Wanju 55365, South Korea
3Postharvest Research Team, NIHHS, RDA, Wanju 55365, South Korea
1광주과학기술원 지구환경공학부, 2국립원예특작과학원 채소과, 3국립원예특작과학원 저장유통연구팀
Correspondence to: *(E-mail: psh@korea.kr, Tel: +82-63-238-6622, Fax: +82-63-238-6605)
Received November 20, 2018; Revised February 11, 2019; Accepted February 22, 2019.
This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
The radish (Raphanus sativus L.) is one of the major vegetables of Korea and is consumed as the main ingredient of kimchi. To improve the texture of radish kimchi, herbs, and soup, we attempted to develop a cultivar with a hard texture. Using species native to Jeju Island, we bred ‘Wonkyo10045ho’ which produces short, elliptically shaped roots with a hard texture. Generation progress was made via the self-fertilization method using bud pollination. We selected individuals with good horticultural characteristics from each of five generations grown from 2006 to 2010. Finally, in 2015, the line was named ‘Wonkyo10045ho’, and the granting of plant variety rights (Grant number 6527) was certified in 2017 following an application for the protection of new plant varieties (application number 2015-398). The root characteristics of ‘Wonkyo10045ho,’ include an oval shape, mixed white and green root skin, and a white inner root color. ‘Wonkyo10045ho’ had a sugar content of 4.9 Brix, with excellent sweetness, good taste, and strong pithiness. The average number of seeds per plant obtained via pollination by bees in a small net house was 609.1, suggesting that the strength of its self-incompatibility was not strong and male sterility might be advantageous. Therefore, it is expected that this variety will be useful as a material for improving the competitiveness of domestic farmers and for stable radish exports.
Keywords : Wonkyo10045ho, radish, inbred line, self-incompatibility, seed yield


March 2019, 51 (1)
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