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园艺学报 ›› 2020, Vol. 47 ›› Issue (5): 827-836.doi: 10.16420/j.issn.0513-353x.2019-0531

• 研究论文 • 上一篇    下一篇

龙眼‘蜀冠’ב大乌圆’杂交后代果实品质性状多样性分析及综合评价

薛 鑫1,2,3,石胜友1,2,3,*,侯世奎4   

  1. 1岭南师范学院生命科学与技术学院,广东湛江 524048;2中国热带农业科学院南亚热带作物研究所,农业部热带果树生物学重点实验室,广东湛江 524091;3海南大学园艺学院,海口 570100;4重庆市储美果树研究所,重庆 402260
  • 出版日期:2020-05-25 发布日期:2020-05-25
  • 基金资助:
    国家自然科学基金项目(31572087);广东省自然科学基金项目(2020A1515011365);国家现代农业产业技术体系建设专项资金项目(CARS-32-02);中国热带农业科学院基本科研业务费项目(1630062020003)

Comprehensive Evaluation and Diversity Analysis of Fruit Quality Traits in Longan‘Shuguan’בDawuyuan’Sexual Progenies

XUE Xin1,2,3,SHI Shengyou1,2,3,*,and HOU Shikui4   

  1. 1School of Life and Technology of Lingnan Normal University,Zhanjiang,Guangdong 524048,China;2Key Laboratory of Tropical Fruit Biology,Ministry of Agriculture,South Subtropical Crops Research Institute,Chinese Academy of Tropical Agricultural Sciences,Zhanjiang,Guangdong 524091,China;3College of Horticulture and Landscape Architecture,Hainan University,Haikou 570100,China;4Chumei Subtropical Fruit Trees Research Institute,Chongqing 402260,China
  • Online:2020-05-25 Published:2020-05-25

摘要: 以龙眼‘蜀冠’ב大乌圆’的F1代65个单株为材料,对其果实的27个品质性状进行了连续3年的观测,应用SPSS19.0软件对各性状进行变异系数、Shannon-Weinner多样性指数和主成分分析。结果表明:65个单株果实品质性状存在着极显著差异,13个数量性状(单果质量、果实纵径、果实横径、可溶性固形物、可食率、果皮厚度、果皮质量、果肉厚、种子质量、维生素C含量、蔗糖含量、葡萄糖含量和果糖含量)变异系数在6.95% ~ 41.64%之间;多样性指数在1.33 ~ 2.02之间;14个描述性状(成熟期、果皮颜色、果形、果肩、果顶、龟裂纹、疣状突起、果肉颜色、果肉质地、果肉透明度、果肉离核难易度、果汁、化渣程度和果肉风味)多样性指数在0.56 ~ 1.28之间;主成分分析发现前5个性状(单果质量、可食率、可溶性固形物、成熟期和果实风味)的累积贡献率为87.50%;建立了‘蜀冠’ב大乌圆’杂交后代果实品质性状综合评价的方法,利用该方法在65个杂交后代中筛选出了5个优异的单株(SD7、SD11、SD36、SD53和SD120),结果与实际观测结果高度一致。

关键词: 龙眼, 杂交后代, 果实品质性状, 多样性, 综合评价

Abstract: Sixty-five individuals of longan F1 population from a cross between‘Shuguan’(female)× ‘Dawuyuan’(male)were chosen as materials,and 27 fruit quality traits of three years were collected and determined according to the method described in Shannon-weinner and Data Standard for longan(Dimocarpus longan)methods. The coefficient of variation,index and principal component were analyzed using the SPSS19.0 software. The results showed that the fruit quality traits of 65 individuals were significantly different. The coefficient of variation of 13 quantitative traits(single fruit weight,vertical diameter,transverse diameter,soluble solids content,edible rate,peel thickness,pericarp weight,flesh thickness,seed weight,vitamin C content,sucrose content,glucose content and fructose content)ranged from 6.95% to 41.64% with a diversity index ranging from 0.56–1.28. The diversity index of 14 description characters(harvest period,pericarp colour,fruit shape,fruit shoulder,fruit top,turtle crack,braided,pulp colour,flesh texture,flesh transparency,freestone,flesh juice,degree of flesh dregs and flesh flavor)ranged from 0.56 to 1.28. Meanwhile,the principal component analysis showed that the cumulative contribution rate of five traits(single fruit weight,edible rate,soluble solids content,harvest period and flesh texture)was 87.50%. In summary,a method for comprehensive evaluation of fruit quality traits of hybrids of‘Shuguan’בDawuyuan’was established in this study. Five excellent individuals(SD7,SD11,SD36,SD53 and SD120)were screened out among 65 individuals and the result was highly consistent with our observations.

Key words: longan, sexual progeny, fruit quality trait, diversity, comprehensive evaluation

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