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Breeding of the Gamnuri (Diospyros kaki Thunb.) Cultivar for Astringent Persimmon with Large-Sized Quality Fruits
고품질 대과종 떫은감 ‘감누리’(Diospyros kaki Thunb.) 육성
Korean J Breed Sci 2018;50(3):340-343
Published online September 1, 2018
© 2018 Korean Society of Breeding Science.

Eun-Gyeong Kim1*, Seong-Tae Choi1, Ji-Young Son1, Gwang-Hwan Ahn1, Seong-Cheol Kim1, and Kwang-Pyo Hong2
김은경1*, 최성태1, 손지영1, 안광환1, 김성철1, 홍광표2

1Sweet Persimmon Research Institute, Gyeongsangnam-do Agricultural Research and Extension Services, Jinyeong, Gimhae 50871, Korea
2Research and Development Bureau, Gyeongsangnam-do Agricultural Research and Extension Services, Jinju 52733, Korea
1경상남도농업기술원 단감연구소, 2경상남도농업기술원 연구개발국
Correspondence to: (E-mail: kim2471@korea.kr, Tel.: +82-55-254-1553, Fax: +82-55-254-1559)
Received May 31, 2018; Accepted August 2, 2018.
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 persimmon cultivar Gamnuri (Diospyros kaki Thunb.) is a new pollination-constant astringent (PCA) type developed by the Sweet Persimmon Research Institute of Gyeongsangnam-do Agricultural Research & Extension Services. This cultivar was selected from the seedlings of the cross between the Sunami and Johongsi cultivars in 1997. After being selected as a prominent seedling line in 2006, its tree growth and fruit characteristics were investigated from 2016 to 2017. The tree grew vigorously during the young stage and showed a spreading shape as it aged. Only female flowers bloomed. The flowering and harvest dates were May 20 and October 16, respectively, which was similar to that of the Sangju-Dungsi control cultivar. The fruits of Gamnuri were characterized by a red-orange skin color with a round, flat shape. The average fruit size was 370 g, which was 1.7 times larger than that of the control. Ninety-three percent of the fruit was marketable with a rare occurrence of calyx-end cracking, which was similar to that of the Sangju-Dungsi cultivar. The soluble solids and flesh firmness were 16.7°Bx and 15.8N, respectively, which was lower than that of the control. Notably, matured fruits maintained their quality for an extended period of time on the tree. When the fruits from the Gamnuri cultivar were processed into sliced-dried fruits, the product had a great taste with good color.
Keywords : PCA (pollination-constant astringent), breeding, persimmon


September 2018, 50 (3)
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