<b>Breeding new improved clones for strawberry production in Brazil

Abstract

ABSTRACT. Breeding different strawberry genotypes and plant selection in Brazil could result in new cultivars with better environmental adaptations. The aim was to develop and select new F 1 strawberry plants with higher potential yields. Twelve hybrid populations were obtained from breeding the cultivars Aromas, Camarosa, Dover, Festival, Oso Grande, Sweet Charlie and Tudla, and 42 F 1 hybrids were obtained from each population. An augmented randomized block design was used. Productive traits were measured and heterosis was calculated for all traits. The breedings Dover x Aromas and Camarosa x Aromas both showed 28.6% of their hybrids with a total fruit mass that was higher than that of cv. Aromas, and 9.5 and 14.3% were higher than that of cv. Camarosa, respectively. The breeding of Camarosa x Aromas produced hybrids with high potential yields and a large average fruit mass that reached the commercial standard. Hybrids MCA12-93, MFA12-443 and MCA12-89 showed high potential yields and can be used as parents in strawberry breeding programs.

Selection of Experimental Hybrids of Strawberry Using Multivariate Analysis

“…High variability was observed among the assessed hybrids, with AMCF being the only trait that did not significantly differ between hybrids. These results are different from those that were found by Galvão et al [12] and Vieira et al [11], who assessed strawberry hybrids and found significant differences for all of the traits related to yield. No differences were found for soluble solids, titratable acidity, pH, and anthocyanins.…”

“…After crossing, formation, and development of fruits, the achene's were removed, dried, acid scarified, and germinated in vitro, as described by Galvão et al [12].The seedlings were transplanted into 72-cell polypropylene trays containing bio-stabilized pine bark substrate when they reached four to five true and expanded leaves, i.e., at 60 days after germination.…”

“…From this experiment, 194 genotypes were selected. The selection was made based on the agronomic and psychopathological traits outlined by Galvão et al [12].…”

Research Article Phenotypic stability of strawberry cultivars assessed in three environments

“…Strawberry crops (Fragaria x ananassa Duch) have a wide geographic distribution (Morales et al 2012). Most of the genotypes of commercially grown strawberries in Brazil originate from genetic improvement programs in the United States (Galvão et al 2017), and they are not well adapted to the diverse edaphoclimatic conditions existing in Brazil.…”

Evaluación de un termofosfato en el crecimiento y producción de fresa (Fragaria x ananassa Duch.) cv. ‘Albión’

“…2013) . Esta especie es cultivada en países ubicados, tanto en la zona tropical como templada del mundo, principalmente, en el continente europeo y americano (Galvão et al . 2017) .…”