Abstract
ABSTRACT Pepper plants can be used as ornamental ones due to the contrasting traits of plants, flowers, and especially fruits. This variability can be exploited in genetic improvement programs aiming at identifying superior genotypes and obtaining hybrids. This work aimed to select parental and hybrid individuals through diallel analysis for fruit traits in Capsicum annuum. Seven pepper genotypes were crossed, and eleven fruit-related quantitative traits were evaluated. The data were subjected to diallel analysis using Griffing’s Method 1 (fixed model). There was a predominance of additive genetic effects on the fruit traits of ornamental pepper plants. Genotypes UFPB77.3 and UFPB390 are indicated as parents for the improvement of ornamental pepper plants, for fruit traits. Hybrids UFPB77.3 x UFPB099, UFPB390 x UFPB77.3, UFPB390 x UFPB001, UFPB390 x UFPB099, UFPB134 x UFPB77.3, and UFPB134 x UFPB390 present a potential for the production of hybrids and generation of segregating populations of ornamental peppers.
Highlights
As pimenteiras podem ser usadas como plantas ornamentais devido às características contrastantes de plantas, flores e especialmente frutos
The research was performed in a plant nursery at the Center of Agricultural Sciences of the Federal University of Paraíba (UFPB), Paraíba state, Brazil
The traits were significant by the F test (p≤0.01) for treatments and general combining ability
Summary
As pimenteiras podem ser usadas como plantas ornamentais devido às características contrastantes de plantas, flores e especialmente frutos. Este trabalho teve como objetivo selecionar indivíduos parentais e híbridos por meio da análise dialélica de caracteres de frutos em Capsicum annuum. Os genótipos UFPB77.3 e UFPB390 são indicados como pais para o melhoramento de pimenteiras ornamentais, para características de frutos. The fruits present different sizes, shapes, and maturation stages, with several color shades (Nascimento et al, 2019b). These differences make this species attractive as an ornamental fruit plant. This variability can be exploited in genetic improvement programs to identify superior genotypes, obtain hybrids, and develop segregating populations. This work aimed to select parental and hybrid individuals through diallel analysis for fruit traits in ornamental peppers
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