Evaluation of crab apples for apple production in high-density apple orchards

Kwon Soon-Il; YOO; 이진욱; 문용선; Cheol Choi; 정희영; 이동훈; Kim Chang Kil; 강인규

Evaluation of crab apples for apple production in high-density apple orchards

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Type: Academic journal

Author: Kwon Soon-Il YOO 이진욱 문용선 Cheol Choi 정희영 이동훈 Kim Chang Kil 강인규

Journal: 한국식물생명공학회 Journal of Plant Biotechnology Journal of Plant Biotechnology 제42권 제3호 KCI Accredited Journals

Published: 2015.1

Pages: 271 - 276 (6page)

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Evaluation of crab apples for apple production in high-density apple orchards

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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 selfincompatibility, 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.

#Blooming time #Pollen germination #Selfincompatibility #Fruit set #High-density orchard system

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References (18)

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Broothaerts W / 2004 / Update on and review of the incompatibility (S-) genotypes of apple cultivars / HortScience 39 : 943 ~ 947

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