Sugar and Ac id Contents in Peach and Nectar ine Der ived from DifferentCountries and Species

ACTA HORTICULTURAE SINICA ›› 2006, Vol. 33 ›› Issue (1): 6-11.

• 研究论文 • Previous Articles Next Articles

Sugar and Ac id Contents in Peach and Nectar ine Der ived from DifferentCountries and Species

Niu Jing^{1, 2} ;Zhao Jianbo^{1, 3}; Wu Benhong¹;L i Shaohua1,3;Liu Guojie^2,3;Jiang Quan³

¹Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China; ²College of Agronomy and B iotechnology, China Agricultural University, Beijing 100094, China; ³ Research Institute of Pomology and Forestry, Beijing Academ y of Agricultural Science, Beijing 100093, China

Received:2005-01-14 Revised:2005-05-09 Online:2006-02-25 Published:2006-02-25

Abstract

Abstract: Sugar and acid contentswere investigated in 99 peach germplasm, including 24 Chinese local and 19 Chinese bred cultivars, two cultivars of Prunus ferganensis and five wild species, 33 European & American and 16 Japanese cultivars. Sucrose accounted for about 73% of the total sugar, and malate for about
60% of the total acid contents in fruits. Glucose and fructose contents in fruits were closely correlated and similar in amount in the most germplams, while the fructose content in fruits of one wild species and part of Chinese local cultivars was much lower than the glucose content and their fructose /glucose was inferior to 0.20. Mean sucrose contentwas the highest in fruits from Chinese local cultivarswhile the lowest sucrose content was found in the wild species. Fructose content in fruits from European & American, Chinese bred and
Japanese cultivars was significantly higher than that from Chinese local cultivars and the wild species. Total acid content of the wild species was the highest and European & American cultivars had significantly higher
acid contents than that from other groups. The malate and citrate contents in fruits from European & American cultivarswere significantly higher than those from Chinese and Japanese ones. Moreover sucrose content in fruits had positive correlation with sorbitol. There were significant positive correlations between malate and citrate, and between quinate and shikimate in fruits.

Key words: Peach, Germp lasm, Sugar, Acid

Niu Jing;;Zhao Jianbo;;Wu Benhong;L i Shaohua;Liu Guojie;Jiang Quan. Sugar and Ac id Contents in Peach and Nectar ine Der ived from DifferentCountries and Species[J]. ACTA HORTICULTURAE SINICA, 2006, 33(1): 6-11.

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Sugar and Ac id Contents in Peach and Nectar ine Der ived from DifferentCountries and Species

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