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Evaluation of crab apples for apple production in high-density apple orchards
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  • Journal title : Journal of Plant Biotechnology
  • Volume 42, Issue 3,  2015, pp.271-276
  • Publisher : The Korean Society of Plant Biotechnology
  • DOI : 10.5010/JPB.2015.42.3.271
 Title & Authors
Evaluation of crab apples for apple production in high-density apple orchards
Kwon, Soon-Il; Yoo, Jingi; Lee, Jinwook; Moon, Yong-Sun; Choi, Cheol; Jung, Hee Young; Lee, Dong Hoon; Kim, Chang Kil; Kang, In-Kyu;
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 Abstract
Crab apple cultivars, 'Maypole', 'Tuscan', and 'Manchurian', were evaluated as potential pollinizers of major apple cultivars, 'Fuji', 'Hongro', and 'Tsugaru', cultivated in high-density apple orchard systems. Numerous cultivar characteristics, including blooming time, pollen germination, fruit set, disease and pest resistance, and self-incompatibility, were examined. The blooming times of both 'Maypole' and 'Tuscan' ranged from April 19 to May 5, which was 2-4 days earlier than those of the major commercial apple cultivars. PCR analysis did not reveal the presence of any of the S-alleles (S1, S3, S7, or S9) identified in major commercial apple cultivars. In addition, the percentage of the fruit set was high after trees were artificially fertilized with crab apple pollen. Artificially cross-pollinated fruits were of similar or higher quality than open-pollinated fruits. They also demonstrated resistance to apple blotch, sooty blotch, and fly speck. The results indicate that the two crab apples, 'Maypole' and 'Tuscan' would be potential candidates for pollinizers of major apple cultivars in Korea. Use of the pollen of these crap apples in commercial production will improve fruit quality and promote sustainable and robust fruit production.
 Keywords
Blooming time;Pollen germination;Self-incompatibility;Fruit set;High-density orchard system;
 Language
English
 Cited by
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