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Montgrí, a Cultivar within the Montserrat Tomato Type

2010; American Society for Horticultural Science; Volume: 45; Issue: 12 Linguagem: Inglês

10.21273/hortsci.45.12.1885

2327-9834

Joan Casals, L. Bosch, Francesc Casañas Artigas, Jaime Cebolla‐Cornejo, Fernando Nuez,

Agricultural Practices and Plant Genetics

ception and low pericarp mealiness; marked ribbing; intermediate hollowness of the seed cavity; and high pericarp thickness) with acceptable agronomic behavior (good yields; homogeneity of fruit size; and low susceptibility to BER). None of the accessions studied had high scores for all desired traits, so we designed a breeding program based on the genealogical method applied to the variability generated by crossing materials that had complementary traits (Allard, 1999). We selected six lines with good scores for the ideotype descriptors and performed a diallel crossing among all of them (15 crosses). From the 15 hybrids obtained, we selected the one closest to the ideotype to produce F2, from which we selected 80 plants to produce descendents by self-fertilization. From each of these 80 F3s, we planted 40 plants, selecting between and within families in generations F3 to F5 (the selection pressure was 2% in each generation). Montgro´ was chosen as the best genotype in the F6 gener