Effects of Germplasm Origin and Fruit Character on Volatile Composition of Peaches and Nectarines

摘要

Ninety-five volatile chemicals in peaches and nectarines with different fruit characters representing different germplasm origins were investigated using HS-SPME-GC-MS. The result showed that the composition and content of volatiles depended on germplasm origins and fruit characters. Chinese bred cultivars obtained from Chinese local and foreign cultivars and Japanese cultivars had significantly higher contents of total volatiles and esters than Chinese local cultivars. White-flesh flat peaches had the highest contents of total volatiles and esters, which were significantly higher than those of other groups with different fruit characters. Terpenoids in white-flesh flat peaches was significantly higher than that in white-flesh nectarines. Ten cultivars including 'Yutian', 'Ruipan 3', 'Yangzhou 124 Pantao', 'Beijing 5', 'Fenglu', 'Kanto 5', 'Okitsu', 'Charme', 'Babygold 5' and 'Babygold 6' with high contents of lactones, terpenoids and total volatiles are considered the desirable cultivars that can be used for further breeding.