Agronomical parameters, sugar profile and antioxidant compounds of "Catherine" peach cultivar influenced by different plum rootstocks.
The influence of seven plum rootstocks (Adesoto, Monpol, Montizo, Puebla de Soto 67 AD, PM 105 AD, St. Julien GF 655/2 and Constantí 1) on individual and total sugars, as well as on antioxidant content in fruit flesh of "Catherine" peaches, was evaluated for three years. Agronomical and basic fruit quality parameters were also determined. At twelve years after budding, significant differences were found between rootstocks for the different agronomic and fruit quality traits evaluated. The Pollizo plum rootstocks Adesoto and PM 105 AD seem to induce higher sweetness to peach fruits, based on soluble solids content, individual (sucrose, fructose and sorbitol) and total sugars. A clear tendency was also observed with the rootstock Adesoto, inducing the highest content of phenolics, flavonoids, vitamin C and relative antioxidant capacity (RAC). Thus, the results of this study demonstrate the significant effect of rootstock on the sugar profile and phytochemical characteristics of peach fruits. In addition, this work shows the importance of the sugar profile, because specific sugars play an important role in peach flavour quality, as well as the studied phytochemical compounds when looking for high quality peaches with enhanced health properties.
Departamento de Pomología, Estación Experimental de Aula Dei (CSIC), Apartado 13034, Zaragoza 50080, Spain. carolffont@gmail.com.
Carolina
C
Font i Forcada
Departamento de Pomología, Estación Experimental de Aula Dei (CSIC), Apartado 13034, Zaragoza 50080, Spain. aoiz@eead.csic.es.
Yolanda
Y
Gogorcena
Departamento de Pomología, Estación Experimental de Aula Dei (CSIC), Apartado 13034, Zaragoza 50080, Spain. mmoreno@eead.csic.es.
María Ángeles
MÁ
Moreno
D000704:Analysis of Variance; D000975:Antioxidants / Q000737:chemistry*; D002241:Carbohydrates / Q000737:chemistry*; D005638:Fruit / Q000737:chemistry* / Q000592:standards; D064209:Phytochemicals / Q000737:chemistry; D018517:Plant Roots / Q000737:chemistry*; D027861:Prunus / Q000737:chemistry; D019655:Quantitative Trait, Heritable; D013997:Time Factors
D000975:Antioxidants; D002241:Carbohydrates; D064209:Phytochemicals