AROMA COMPONENTS OF AMPHIPLOID STRAWBERRIES DERIVED FROM INTERSPECIFIC HYBRIDS OF FRAGARIA X ANANASSA AND DIPLOID WILD SPECIES

The aroma components of amphiploids of F. vesca x F. x ananassa and F. x ananassa x F. nilgerrensis improved from interspecific hybrids by in vitro chromosome doubling method were analyzed by GC-MS. Major aroma compounds of F. x ananassa were methyl butylate, ethyl butylate, methyl butyric acid, acetic acid and 2,5-dimethyl-4-hydroxy (2H) furanone. F. vesca contained a high amount of ethyl acetate, but amounts of methyl butylate, ethyl butylate, organic acids and furanones were low. F. nilgerrensis contained a high level of ethyl acetate and furanone, but amounts of methyl butylate, ethyl butylate and organic acids were low.
Fragrance and aroma components of amphiploids were intermediate in F. vesca x F. x ananassa, while they resemble F. nilgerrensis in the F. x ananassa x F. nilgerrensis hybrid.

About fifty major peaks were isolated from each sample analyzed by GC-MS and classified by principal component analysis method.
Three parental species and their amphiploids were discriminated in the scatter diagram of principal components.

III International Strawberry Symposium

T. Mochizuki, Y. Noguchi, K. Sone, M. Morishita

Fragaria vesca, Fragaria nilgerrensis, head-space gas, ether extract, GC-MS, principal component analysis

https://doi.org/10.17660/ActaHortic.1997.439.6