Authors: R.B. Camargos, R.G. Von Pinho, M. Balestre, R.A.D.C. Ferreira, K.O.G. Dias, L.P.M. Pires and V.F. Souza
Plant breeding strategies are constantly refined to increase efficiency during the selection process. Consequently, the aims of this study were to examine genetic control and efficiency of selection based on the per se performance of maize lines and based on hybrid performance in reaction to white spot, common rust, and ear ro.. Read More»
Authors: X.Y. Du, W. Li, X.Y. Sa, C.L. Li, J. Lu, Y.Z. Wang and Z.W. Chen
Although gerbils have been widely used in many areas of biological research over many years, there is currently no effective genetic quality control system available. In the present study, we sought to establish a microsatellite marker system for quality control and conducted an optimized analysis of 137 microsatellite loci in two laboratory gerbil popula.. Read More»
Authors: A.M.C. Oliveira, R.O. Batista, P.C.S. Carneiro, J.E.S. Carneiro and C.D. Cruz
Cultivars of common bean with more erect plant architecture and greater tolerance to degree of lodging are required by producers. Thus, to evaluate the potential of hypocotyl diameter (HD) in family selection for plant architecture improvement of common bean, the HDs of 32 F2 plants were measured in 3 distinct populations, and the characteristics related .. Read More»
Authors: CÃ?Âcero B. de Menezes, Wilson R. Maluf, SebastiÃ?£o M. de Azevedo, Marcos V. Faria, Ildon R. Nascimento, Douglas W. Nogueira, Luiz A.A. Gomes and Eduardo Bearzoti
The inheritance of the tendency to set parthenocarpic fruit in the summer squash (Cucurbita pepo L.) line Whitaker was studied. Two parental lines, Whitaker (parthenocarpic) and Caserta (nonparthenocarpic), and the F1 and F2 generations and backcrosses to both parents were tested. The parthenocarpic tendency of individual plan.. Read More»
Authors: V.M.P. Silva, J.A.N. Menezes J�ºnior, P.C.S. Carneiro2, J.E.S. Carneiro and C.D. Cruz
Knowledge of genetic control of plant architecture in the common bean can help breeders define the most adequate breeding strategy to optimize gains. We examined genetic control of plant architecture in the common bean by means of partial diallel crosses. Fourteen bean lines were crossed under a partial diallel scheme, in which group 1 was composed of 8 e.. Read More»
Authors: C.S. Bento, R. Rodrigues, L.S.A. Gon�§alves, H.S. Oliveira, M.H. Santos, M.C. Pontes and C.P. Sudr�©
We investigated inheritance of resistance to Pepper yellow mosaic virus (PepYMV) in Capsicum baccatum var. pendulum accessions UENF 1616 (susceptible) crossed with UENF 1732 (resistant). Plants from generations P1, P2, F1, F2, BC1:1, and BC1:2 were inoculated and the symptoms were evaluated for 25 days. Subsequently, an area under the disease progress cur.. Read More»
Authors: E.V. Rodrigues, K.J. Damasceno-Silva, M.M. Rocha and E.A. Bastos
The purpose of this study was to identify parents and obtain segregating populations of cowpea (Vigna unguiculata L. Walp.) with the potential for tolerance to water deficit. A full diallel was performed with six cowpea genotypes, and two experiments were conducted in Teresina, PI, Brazil in 2011 to evaluate 30 F2 populations .. Read More»