Results 21 to 30 of about 588,080 (302)

Genetic progress over twenty-three years of irrigated rice breeding in southeastern Brazil

Acta Scientiarum. Agronomy, 2020
The importance of rice (Oryza sativa) is indisputable this cereal is the staple food for half of the global population. Genetic progress estimation allows evaluation of the effectiveness of genetic improvement of crops and helps in the planning of ...
Antônio Carlos da Silva Junior, Vinicius Quintão Carneiro, Iara Gonçalves dos Santos, Renato Domiciano Silva Rosado, Cosme Damião Cruz, Plínio César Soares   +5 more
doaj   +1 more source

Prediction of genetic gain from quadratic optimisation with constrained rates of inbreeding [PDF]

, 2006
There are selection methods available that allow the optimisation of genetic contributions of selection candidates for maximising the rate of genetic gain while restricting the rate of inbreeding. These methods imply selection on quadratic indices as the
Avendano, S, John A. Woolliams, Woolliams John A, Avendaño Santiago, John A Woolliams, Villanueva Beatriz, Woolliams, JA, Villanueva, B., Beatriz Villanueva, Villanueva, B, Woolliams, John, Avenano, S., Santiago Avendaño   +12 more
core   +1 more source

Genetic parameter estimates in yellow passion fruit based on design I

Brazilian Archives of Biology and Technology, 2009
The aim of this work was to study the genetic parameters, to obtaine the progenies by crossings among the yellow passion fruits cultivars (Passiflora edulis f. flavicarpa), following the Design I.
Gustavo Menezes Gonçalves, Alexandre Pio Viana, Messias Gonzaga Pereira, Francisco Valdevino Bezerra Neto, Antônio Teixeira do Amaral Júnior, Telma Nair Santana Pereira, Tiago José Menezes Gonçalves   +6 more
doaj   +1 more source

Genetic parameters and trends of morphometric traits of GIFT tilapia under selection for weight gain

Scientia Agricola, 2014
The main factor considered in breeding programs for fish is growth, which can be assessed in terms of a gain in either weight or body measurements. This study was undertaken to evaluate the morphometric traits of GIFT strain tilapia (Oreochromis sp ...
Rafael Vilhena Reis Neto, Carlos Antônio Lopes de Oliveira, Ricardo Pereira Ribeiro, Rilke Tadeu Fonseca de Freitas, Ivan Bezerra Allaman, Sheila Nogueira de Oliveira   +5 more
doaj   +1 more source

Sparse testcrossing for early-stage genomic prediction of general combining ability to increase genetic gain in maize hybrid breeding programs. [PDF]

Theor Appl Genet
Sparse testcrossing is an effective strategy for increasing both short- and long-term genetic gain in hybrid breeding programs. Maize hybrid breeding programs aim to develop new hybrid varieties by crossing genetically distinct parents from different ...
González-Diéguez DO, Atlin GN, Beyene Y, Wegary D, Gemenet DC, Werner CR.   +5 more
europepmc   +2 more sources

Genetic variation of metabolite and hormone concentration in UK Holstein-Friesian calves and the genetic relationship with economically important traits [PDF]

, 2009
The decline of dairy cattle fertility worldwide remains a major concern, with conception rates to first service commonly below 40%. The length and severity of negative energy balance postpartum are unfavorably correlated with fertility, suggesting that ...
Woolliams, J A, Royal, M D, Flint, A P F, Hayhurst, C, Løvendahl, P   +4 more
core   +1 more source

Genomic selection in United States dairy cattle

Frontiers in Genetics, 2022
The genomic selection program for dairy cattle in the United States has doubled the rate of genetic gain. Since 2010, the average annual increase in net merit has been $85 compared to $40 during the previous 5 years.
George R. Wiggans, José A. Carrillo
doaj   +1 more source

Achieving Genetic Gains in Practice

, 2022
AbstractAccelerating the rate of genetic gain for grain yield together with key traits is pivotal for delivering improved wheat varieties. The key strategies of CIMMYT’s spring bread wheat improvement program to continuously increase genetic gains and deliver elite wheat lines to national partners in the target countries include: breeding for product ...
Ravi P. Singh, Philomin Juliana, Julio Huerta‐Espino, Velu Govindan, Leonardo Crespo‐Herrera, Suchismita Mondal, Sridhar Bhavani, Pawan Kumar Singh, Xinyao He, María Itria Ibba, M. S. Randhawa, Uttam Kumar, Arun Kumar Joshi, Bhoja R. Basnet, Hans‐Joachim Braun   +14 more
openaire   +1 more source

Genomic Breeding Programs Realize Larger Benefits by Cooperation in the Presence of Genotype × Environment Interaction Than Conventional Breeding Programs

Frontiers in Genetics, 2020
Genotype × environment interaction (G × E) is of increasing importance for dairy cattle breeders due to international multiple-environment selection of animals as well as the differentiation of production environments within countries.
Lu Cao, Huiming Liu, Han A. Mulder, Mark Henryon, Mark Henryon, Jørn Rind Thomasen, Morten Kargo, Morten Kargo, Anders Christian Sørensen   +8 more
doaj   +1 more source

Estimation of genetic variation in residual variance in female and male broiler chickens [PDF]

, 2008
In breeding programs, robustness of animals and uniformity of end product can be improved by exploiting genetic variation in residual variance. Residual variance can be defined as environmental variance after accounting for all identifiable effects.
Mulder, H. A., Vereijken, A., Veerkamp, R.F., Mulder, H.A., Hill, W. G., Veerkamp, R. F., Hill, W.G.   +6 more
core   +1 more source