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Chinese Agricultural Science Bulletin ›› 2015, Vol. 31 ›› Issue (16): 140-145.doi: 10.11924/j.issn.1000-6850.2014-2406

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Selection of Evaluation Factors for Different Phyllanthus emblica Germplasms’ Fruits

Zhao Qiongling, Ma Kaihua, Zhang Yonghui, Luo Huiying, Duan Yuetang, Qu Wenlin, Sha Yucang   

  1. (Institute of Tropical Eco-agriculture Sciences, Yunnan Academy of Agricultural Sciences, Yuanmou Yunnan 651300)
  • Received:2014-09-03 Revised:2015-05-27 Accepted:2015-03-25 Online:2015-07-27 Published:2015-07-27

Abstract: In order to provide a theoretical basis of germplasms evaluation for different Phyllanthus emblica provenances, 20 quality indicators of 12 different provenances of Phyllanthus emblica, including vitamin C, soluble solids, titratable acidity, acid ratio of main solid quality indicators, etc., were studied, and principal component analysis and cluster analysis method were used to analyze the various quality indicators. The results showed that: except the number of carpels and ventral suture index, the remaining 18 indicators of Phyllanthus emblica should be taken into consideration in the cluster analysis. The first factor consisted of fruits weight, pulp weight, stone weight, longitudinal diameter, diameter, flesh thickness; the second factor clustered 7 essence indicators of fruit structure, including crude fiber, total acidity, and soluble solids, etc.; the third factor clustered sticky sweet degrees and sticky degree from stone together; and finally, the forth factor was Vc clustering into a single category. The study suggested that quality evaluation indicators for Phyllanthus emblica eventually could be simplified as 4 main factors: fruit weight, crude fiber, sweet degrees and vitamin C.