CARACTERIZAÇÃO, ADAPTABILIDADE E ESTABILIDADE DE GENÓTIPOS AVANÇADOS DE MORANGUEIRO DE DIA CURTO

Abstract

The strawberry fruit (Fragaria × ananassa) has great economic relevance in Brazil, however, farmeres still dependo n the import of seedlings, being one of obstacles in production. Under brazilian soil, temperature, light and humidity conditions, thay may not present good adaptability and stability, with lower productive performance and fruit quality, in addition to low resistence to pests and diseases. The objectives of this study were to carry out the characterization, adaptability and stability of advanced short-day strawberry genotypes, based on production, physicochemical, molecular and morphoagronomic characterizations among the short-day genotypes. These genotypes come from the cross between the female parent ‘Camino Real’ (short day) and the male parents RVCA 16, RVFS 07, RVFS 06, RVDA 11, RVCS 44, RVFOS 07 and RVFC 07, all of which are first generation genotypes. The pre-selection of 36 second-generation genotypes was carried out, in which certain production and physicochemical components were evaluated. The design used was a randomized block design in three replications with five plants per plot. The application of multivariate analysis indicated heterogeneous groups among genotypes, mainly in relation to agronomic characteristics. RVCS 44CR 130 was the most productive genotype in most of the evaluated agronomic traits. RVCA 16CR-50 produced the largest fruits. RVFS 06CR-105 produced the highest number of fruits. In the physicochemical characteristics, the genotype that stood out was RVFS 07CR-61. The genotypes that showed the best performance in the simultaneous selection of adaptability and stability were: RVCS 44CR-130, RVDA 11CR-125, RVFS 06CR 105, RVFS 07CR-61 and RVDA 11 CR-61. The RVFS 06CR-105 genotype has dual aptitude. It is concluded that the genotypes with the best performance in both analyzes were: RVCS 44CR-130, RVDA 11CR-125 and RVFS 06CR-105, which may be promising for breeding programs or even to be tested in terms of cultivation and use value (VCU).