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Han Fei, Huang Hong-Wen, Li Da-Wei, Zhang Qiong, Jiang Zheng-Wang, Liu Xiao-Li, Zhong Cai-Hong. Breeding and characterization of a new high-quality yellow-fleshed kiwifruit cultivar ‘Jinyuan’[J]. Plant Science Journal, 2019, 37(2): 171-180. DOI: 10.11913/PSJ.2095-0837.2019.20171
Citation: Han Fei, Huang Hong-Wen, Li Da-Wei, Zhang Qiong, Jiang Zheng-Wang, Liu Xiao-Li, Zhong Cai-Hong. Breeding and characterization of a new high-quality yellow-fleshed kiwifruit cultivar ‘Jinyuan’[J]. Plant Science Journal, 2019, 37(2): 171-180. DOI: 10.11913/PSJ.2095-0837.2019.20171

Breeding and characterization of a new high-quality yellow-fleshed kiwifruit cultivar ‘Jinyuan’

  • ‘Jinyuan’ is a kiwifruit cultivar bred in 2002 by backcrossing interspecific hybrid cultivar ‘Jinyan’ (A. chinensis×A. eriantha) as the female parent and Chinese kiwifruit (A. chinensis) as the male parent, which produced the medium-mature yellow fruit from the F1 group. The botanical characters, specificity, nutrient composition, and storage ability of the ‘Jinyuan’ kiwifruit were studied in this paper. Results showed that the ‘Jinyuan’ fruit had a short columnar shape, with a weight of 80-100 g. The flesh of the soft ripening fruit was orange-yellow, and the number of petals and filaments were close to those of its female parent ‘Jinyan’. The corolla diameter and number of stigmas were 9.31% and 52% higher than that of ‘Jinyan’, respectively. The length of the flower stalk was 16.75% lower, and the germination and fruit branching rates were also slightly lower than that of ‘Jinyan’ but were 55.26% and 43.33% higher than the ‘Hayward’ variety, respectively. The contents of soluble solids, total sugar, and organic acids in ‘Jinyuan’ were similar to those of ‘Jinyan’, but vitamin C content was 4.63% higher than ‘Jinyan’ and 2.2 times higher than ‘Hayward’. ‘Jinyuan’ exhibited mineral element richness, with P and K content 30.86% and 22.53% higher than that of ‘Jinyan’, respectively, and with Mg content 24.86% higher than that of ‘Hayward’. ‘Jinyuan’ also demonstrated abundant amino acid content (8 mg/g), and the E/N and E/T values were higher than those of ‘Jinyan’ and ‘Hayward’, close to the ideal model. After 150 d of storage in a harsh environment (T:1℃ -2℃, RH:90%-95%), the good fruit rate was above 80%. After 200 d of storage, the good fruit rate was still 65%. The ‘Jinyuan’ storage property was slightly lower than that of ‘Jinyan’, but significantly higher than that of ‘Hayward’. Three bands were observed after amplification by Geo7-223, which were different from those of ‘Jinyan’ and ‘Jintao’ at the molecular level, thus exhibiting specificity. Therefore, the ‘Jinyuan’ kiwifruit possessed good agronomic characteristics and quality, which provides a choice for improving yellow-fleshed kiwifruit and responding to market demand.
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