Research Article

Related GMR Articles

Diallel; Edaphoclimatic adaptation; Gene effects; Inheritance; Zea mays

In Brazil, using combining ability of popcorn genotypes to achieve superior hybrids has been unsuccessful because the local genotypes are all members of the same heterotic group. To overcome this constraint, 10 lines (P1 to P10) with different adaptations to tropical or temperate edaphoclimatic environments were used to obtain 45 F1 hybrids in a complete ... more

V.Q.R. da Silva; A.Tdo Amaral Júnior; L.S.A. Gonçalves; S.P.Freitas Júnior; L.S. Candido; C. Vittorazzi; L.M. Moterle; R.A. Vieira; C.A. Scapim
Additive effect; Biomass; Diallel; Hybrids; Quality traits

Elephant grass is a tropical forage plant widely distributed throughout Brazil. It was first exclusively used in the livestock sector as cattle feed. The grass is characterized by its high productivity and photosynthetic capacity and is considered as an alternative source of renewable energy. Here, we estimated the general combining ability of the parents and specific combining ability of ... more

R.F. Daher; L.B. Souza; G.A. Gravina; J.C. Machado; H.C.C. Ramos; V.Q.R. Silva; B.R.S. Menezes; L.S.A. Schneider; M.L.F. Oliveira; R.D. Gottardo
Diallel; Plant resistance; Spodoptera frugiperda; Zea mays

The fall armyworm, Spodoptera frugiperda, is the pest that causes the greatest economic losses for both common corn and popcorn crops, and the use of resistant plant genotypes is an important tool for integrated pest management. The goal of the present study was to evaluate the damage caused by S. frugiperda on single-cross popcorn hybrids under field conditions ... more

N.C.S. Crubelati-Mulati; C.A. Scapim; F.A. Albuquerque; A.T.Amaral Júnior; M. Vivas; M.A. Rodovalho
Diallel; Hybridization; Plant breeding

Pepper 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 ... more

A.M.S. Pessoa; E.Rdo Rêgo; C.A.Pdos Santos; M.G. de Carvalho; M.Mdo Rêgo
Biofortification; Diallel; Phaseolus vulgaris; Plant breeding

The objectives of this study were to select promising common bean populations for high iron and zinc contents (FeC and ZnC), seed yield and 100-seed weight, to study the genetic control of these traits and to select parents for high FeC and ZnC based on a diallele analysis. Fifteen populations were obtained from crosses among six parents selected for high FeC and ... more

P.R.C. Di Prado; L.C. Faria; T.L.P.O. Souza; L.C. Melo; P.G.S. Melo; H.S. Pereira
Diallel; Fusarium oxysporum f. sp. phaseoli; Phaseolus vulgaris

Diallel analysis and field tests have not been used in selecting for resistance to fusarium wilt in common beans (dry beans, Phaseolus vulgaris). Our goal was to select parents and segregating populations of dry bean (common bean) with black seed coat that are resistant to fusarium wilt and have high yield and high seed weight. Eight common bean cultivars ... more

D.G. Pereira; L.C. Faria; T.L.P.O. Souza; L.C. Melo; H.S. Pereira
Diallel; Puccinia polysora; Rust; Zea mays var. everta

The selection of southern rust-resistant genotypes caused by Puccinia polysora (Pucciniaceae) is considered an efficient way to control this disease, which causes high crop losses in popcorn. To help choose adequate cultivars, we examined the combining ability of lines and the agronomic performance of popcorn hybrids for rust resistance. Eight S7 ... more

K.F.M. Schmitt; V.J. Lima; A.Tdo Amaral Júnior; J.S. Santos; G.S. Mafra; M. Vivas; S.H. Kamphorst; Y.P. Souza; F.T. Oliveira; F.R.A. Ferreira; J.M.S. Vivas
Brassica napus; Correlation coefficients; Gene action; Heritability; Quality traits

A study on three leading lines (KN-256, KN-257, and KN-258) of Brassica napus and an approved variety, Punjab-Sarson, was conducted to gain insight into the genetic control of some quality traits using generation mean analysis. Our results showed that additive gene action predominated in the inheritance of oil content and erucic acid in cross KN-256 x KN-257 and in that of ... more

S. Ahmad; H.A. Sadaqat; M.H.N. Tahir; F.S. Awan
Gene action; General and specific combining ability; genetic breeding; Phaseolus vulgaris

The search for genetic material of snap beans with desirable yield traits is of utmost importance for yield increase in Brazil. We evaluated 12 snap bean genotypes by diallel crosses that presented characteristics of interest, so as to select the best genitors to generate productive populations in the snap bean breeding program of the Universidade Estadual do Norte ... more

A.B.S. Gomes; T.R.A. Oliveira; G.A. Gravina; D.P. Cruz; C.Q.S.S. Sant’Anna; R.F. Daher; L.C. Araújo; K.C. Araújo; G.H.F. Oliveira; R.S. Rocha; I.M. Pereira
Androgenesis; Breeding; Bud morphology; Culture Media; Genotypes

The aim of this study was to relate flower bud size with microspore developmental stages and the induction of embryos in the anthers of different ornamental pepper (Capsicum annuum L.) genotypes. Flower buds were randomly collected and visually divided into three classes based on both petal and sepal size. The length and diameter of the bud as well as the length of the petal, ... more

P.A. Barroso; M.M. Rêgo; E.R. Rêgo; W.S. Soares