Produção Nacional
Revisado por pares
Research Article Inheritance of seedling and plant traits in ornamental pepper (Capsicum annuum)
2019; Research Foundation of Ribeirão Preto; Volume: 18; Issue: 1 Linguagem: Inglês
10.4238/gmr18120
ISSN1676-5680
AutoresÂ. M. S. Pessoa, Elizanilda Ramalho do Rêgo, C. A. P. dos Santos, Michelle Gonçalves de Carvalho, Maílson Monteiro do Rêgo,
Tópico(s)Flowering Plant Growth and Cultivation
ResumoPepper has considerable genetic diversity and versatility.Knowledge of the genetic control of traits in peppers is of great importance for breeding programs given the large variety of types, sizes, colors and flavors.To this end, we examined the inheritance of seedling and plant traits in ornamental pepper (Capsicum annuum).The experiment was conducted in a greenhouse in Areia, Paraíba, Brazil.Seven ornamental pepper accessions (C.annuum) belonging to the Federal University of Paraiba's Germplasm Bank were investigated: UFPB001, UFPB004, UFPB77.3,UFPB099, UFPB134, UFPB137 and UFPB390.Morphoagronomic characterization was performed based on Capsicum descriptors, and 12 quantitative traits were evaluated in seedlings and plants.The data were subjected to variance analysis and subsequent diallel analysis performed according to Hayman's method.The t statistic was used to test the adequacy of the additive-dominance model.The traits seedling height, hypocotyl diameter, cotyledon leaf length, plant height, bifurcation height, leaf length and width and chlorophyll a and b are in agreement with the additive-dominant model.Correlations were positive and significant for seedling height (0.470) and hypocotyl diameter (0.885).Cotyledonary leaf length and width showed negative and significant values of -0.088 and -0.669, respectively.The correlations were positive for the following traits: plant height, stem diameter, first bifurcation height, canopy diameter, leaf length and chlorophyll b, with values ranging from 0.094 to 0.965.Leaf width and ©FUNPEC-RP www.funpecrp.com.br
Referência(s)