CARACTERIZAÇÃO MORFOLÓGICA E ANÁLISE DE GERAÇÃO PARA CARACTERES FLORAIS EM PIMENTEIRA ORNAMENTAL (Capsicum annuum L.)

Abstract

The species of the genus Capsicum are the most cultivated worldwide, and Capsicum annuum L. to which it is most prominent in the market and as an ornamental pepper. The characterization is important to analyze the variability and the potential of different potential use of access in breeding programs. Thus, the aim of this study was to floral characterization based on qualitative descriptors, and to estimate genetic parameters and genetic effects involved in the inheritance of quantitative characteristics of the flower in 6 generations (P1, P2, F1, F2, RC1 and RC2 ). Crosses were performed between parental (77.3 and 76) for generating hybrids (F1) and F1 between "s and their parent to generate the backcross (RC1 and RC2). To obtain seeds of the F2 generation was performed F1 generation of selfing. The analysis of six generations were characterized 9 plants from each parent (P1 and P2), 3 F1 plants, 35 plants for each backcross (RC1 and RC2), and 73 plants to generate segregating F2. For qualitative descriptors were evaluated 10 floral characteristics where a descriptive statistical analysis was performed, which were expressed in percentages. Each of the five quantitative characteristics evaluated flower underwent generation analysis. There was variability for most qualitative descriptors evaluated flower, except form the corolla and edge of the cup. minimum and maximum values were found for heritability in the broad sense of 43.16% and 86.62% for flower diameter and number of petals, respectively. For estimates of heritability in the narrow sense the highest observed value was 67.58% for feature fillet length and the lowest value was 16.38% for characteristic diameter of the flower. The additive-dominant model (m, d, a) was not enough to explain the traits, which are suitable only to the complete model with six parameters (m, d, a, aa, ad, dd).