
Authors: V.A.P. J�ºnior, P.G.S. Melo, H.S. Pereira, P.Z. Bassinello and L.C. Melo
Gastrointestinal health is of great importance due to the increasing consumption of functional foods, especially those concerning diets rich in fiber content. The common bean has been valorized as a nutritious food due to its appreciable fiber content and the fact that it is consumed in many countries. The current study aimed to evaluate and compare the g.. Read More»
Authors: S. Zhang, J. Jiang and Q. Luan
This is the first comprehensive study of the genetic analysis of the majority of oleoresin components of slash pine (Pinus elliottii). Pine oleoresin, the resin secreted from the pine tree, is a raw material widely used in industrial products. The objective of this study was to explore the genetic variation and correlation bet.. Read More»
Authors: B. Shokrollahi and H. Baneh
The objective of the present study was to estimate genetic parameters for body weight at different ages in Arabi sheep using data collected from 1999 to 2009. Investigated traits consisted of birth weight (N = 2776), weaning weight (N = 2002) and weight at six months of age (N = 1885). The data were analyzed using restricted m.. Read More»
Authors: J.P. Eler, J.B.S. Ferraz, J.C.C. Balieiro and E.C. Mattos
With the aim of estimating the coefficient of heritability of average annual productivity of Nellore cows (COWPROD), a data set from 24,855 animals with known pedigree was analyzed. COWPROD is defined as the amount (in kilograms) of weaned calves produced yearly by one cow during her remaining time in herd ignoring a fixed.. Read More»
Authors: L.A. Peixoto, L.L. Bhering and C.D. Cruz
Genomic selection is a useful technique to assist breeders in selecting the best genotypes accurately. Phenotypic selection in the F2 generation presents with low accuracy as each genotype is represented by one individual; thus, genomic selection can increase selection accuracy at this stage of the breeding program. This study.. Read More»
Authors: R.C. Alvares, F.C. Silva, L.C. Melo, P.G.S. Melo and H.S. Pereira
Slow seed coat darkening is desirable in common bean cultivars and genetic parameters are important to define breeding strategies. The aims of this study were to estimate genetic parameters for plant architecture, grain yield, grain size, and seed-coat darkening in common bean; identify any genetic association among these trai.. Read More»
Authors: R.R. Mota, L.F.A. Marques, P.S. Lopes, L.P. da Silva, F.R.A. Neto, M.D.V. de Resende and R.A. Torres
The Brazilian Association of Simmental and Simbrasil Cattle Farmers provided 29,510 records from 10,659 Simmental beef cattle; these were used to estimate (co)variance components and genetic parameters for weights in the growth trajectory, based on multi-trait (MTM) and random regression models (RRM). The (co)variance components and genetic parameters wer.. 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: A.W. Canaza-Cayo, M.V.G.B. Silva, J.A. Cobuci, M.F. Martins and P.S. Lopes
The objective of this study was to evaluate the effects of inclusion or non-inclusion of short lactations and cow (CGG) and/or dam (DGG) genetic group on the genetic evaluation of 305-day milk yield (MY305), age at first calving (AFC), and first calving interval (FCI) of Girolando cows. Covariance components were estimated by .. Read More»
Authors: J.G. Lima and M.A.P. Ramalho
The primary components of common bean (Phaseolus vulgaris) grain yield (W) are the number of pods (X), the number of grains per pod (Y), and the weight of the grains (Z). In 1964, Grafius suggested using geometry in plant breeding; W corresponds to the volume of a parallelepiped with three axes, X, Y, and Z. Because the cube i.. Read More»