Research Article

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08/31/2010
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
12/19/2014
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
08/26/2014
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
10/28/2015
Diallel; Gene action; Genotypes; Morphological traits

We conducted a 5 x 5 complete diallel cross experiment in bread wheat (Triticum aestivum) with the genotypes 6309, Chkwal-50, Dhrabi, Bhkhar-02, and FS-08. Our objective was to evaluate the type of gene action and the general and specific combining abilities required for various morphological traits in wheat. The results of analysis of variance revealed highly significant ... more

M. Shehzad; S.B. Hussain; M.K. Qureshi; M. Akbar; M. Javed; H.M. Imran; S.A. Manzoor
02/26/2019
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
03/28/2019
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
07/12/2019
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
05/06/2016
Abiotic stress; Root and shoot traits; WinRHIZO; Zea mays var. everta

Increasing phosphorus use efficiency in agriculture is essential for sustainable food production. Thus, the aims of this study were: i) to identify phosphorus use efficiency (PUE) in popcorn lines during the early plant stages, ii) to study the relationship between traits correlated with PUE, and iii) to analyze genetic diversity among lines. To accomplish this, 35 popcorn lines from ... more

O.J.A.P. Santos; L.S.A. Gonçalves; C.A. Scapim; deS.M. de Sousa; C.R. Castro; V.Y. Baba; A.L.M. de Oliveira; O.J.A.P. Santos; L.S.A. Gonçalves; C.A. Scapim; deS.M. de Sousa; C.R. Castro; V.Y. Baba; A.L.M. de Oliveira