Preliminary results of fruit selection and induced parthenocarpy of mabolo (Diospyros blancoi A. DC.)

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• 作者：Sheng-Feng Hung ; Iou-Zen Chen ; Su-Feng Roan
• 关键词：Diospyros blancoi ; D. discolor ; D. philippensis ; Mabolo ; Novel fruit ; Parthenocarpy ; Seedless
• 刊名：Genetic Resources and Crop Evolution
• 出版年：2015
• 出版时间：December 2015
• 年：2015
• 卷：62
• 期：8
• 页码：1127-1134
• 全文大小：887 KB
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• 作者单位：Sheng-Feng Hung (1)
  Iou-Zen Chen (2)
  Su-Feng Roan (3)
  
  1. Hengchun Research Center, Taiwan Forestry Research Institute, No. 203, Kungyuan Rd., Hengchun, Pingtung, 94644, Taiwan, ROC
  2. Department of Horticulture and Landscape Architecture, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei, 10617, Taiwan, ROC
  3. Department of Horticulture and Biotechnology, Chinese Culture University, No. 55, Hwa-Kang Rd., Yang-Ming-Shan, Taipei, 11114, Taiwan, ROC
  
• 刊物类别：Biomedical and Life Sciences
• 刊物主题：Life Sciences
  Plant Sciences
  Plant Physiology
  Plant Pathology
  
• 出版者：Springer Netherlands
• ISSN：1573-5109

文摘

The fruits of Diospyros blancoi A. DC., commonly known as velvet apple or mabolo, vary greatly in size. The aims of our study are to clarify the feasibility of large fruit selection and investigate the parthenocarpic nature of mabolo in order to better understand the potential applicability of mabolo in large and seedless fruit production. To conduct an initial selection for large fruits in Taiwan, three individuals (code named SYD, KKN, and YKC) with an average fruit size of more than 200 g were selected. The largest fruits were collected from SYD, the fruit had an average weight of 218.6 ± 61.9 g and an average pulp weight of 193.8 ± 55.1 g (after deducting the weight of seeds). These results were significantly different from those recorded for the entire population, which had an average fruit weight of 103.9 ± 34.0 g and pulp weight of 78.6 ± 29.1 g (after deducting the weight of seeds). As in persimmons (Diospyros kaki Thunb.), parthenocarpic seedless fruits can also be obtained in D. blancoi through manipulation. Parthenocarpic seedless fruits were induced in SYD using either bagging or the stigma removal method. The fruit-set rate and average fruit weights were 49 % and 122.6 ± 24.7 g, and 76 % and 109.3 ± 18.7 g for bagging and the stigma removal method, respectively. SYD fruits had not only fewer seeds and lesser seed weight but also the highest average pulp weight compared to the other two selections, showing that D. blancoi has good parthenocarpy nature and SYD has the best large fruit characteristic for potential commercialization of mabolo. Keywords Diospyros blancoi D. discolor D. philippensis Mabolo Novel fruit Parthenocarpy Seedless