Identification of ‘Calanda’-Type Peach Genotypes Tolerant to Monilinia laxa (Aderh. & Ruhland) Honey

One of the diseases that has greatest negative effect on peach production is brown rot, produced by fungus, Monilinia spp. The way to diminish this disease selection genotypes with a high tolerance while maintaining fruit quality. In study, laxa and agronomic biochemical characteristics forty-two hybrids derived from ‘Andross’ × ‘Calante’ cross were studied under controlled conditions during two consecutive years, compared their parents. assessment rot was estimated inoculated M. laxa, recording incidence colonization, lesion diameter extent establish severity colonization. At harvest, physicochemical traits antioxidant compounds (vitamin C, total phenolics, flavonoids relative capacity) determined. We have found inverse relationships between firmness, pH, titratable acidity contents symptoms in fruit. Our results confirm accumulation antioxidants tends reduce colonization Principal component analysis allowed genotypes, AC-24 AC-93, ‘Calanda’-type peaches known standard quality, content minimal susceptibility rot.