Results 21 to 30 of about 8,764 (251)

Reduction of cannibalism in pike (Esox lucius) fry by isolation of full-sib families [PDF]

open access: yesReproduction Nutrition Développement, 1980
After 50 days of pond culture fewer pike fingerlings (20 to 33 p. 100) were recovered from the mixing of two full-sib families than from isolated families. Growth and survival were influenced by the family effect. Environmental parameters, such as depth and extent of the banks, may also affect growth and survival.
Bry, Christian, Gillet, Christian
openaire   +2 more sources

Quantitative genetics theory for non-inbred populations in linkage disequilibrium

open access: yesGenetics and Molecular Biology, 2004
Although linkage disequilibrium, epistasis and inbreeding are common phenomena in genetic systems that control quantitative traits, theory development and analysis are very complex, especially when they are considered together.
José Marcelo Soriano Viana
doaj   +1 more source

Recurrent Full-sib Family Selection for Husk Extension in Sweet Corn [PDF]

open access: yesJournal of the American Society for Horticultural Science, 2019
Corn earworm ( Helicoverpa zea ) is a costly and destructive pest in sweet corn ( Zea mays ) production. A recurrent selection experiment was conducted to assess the feasibility of selecting a sweet corn population for longer husks without shortening ...
Virginia M. Moore, William F. Tracy
openaire   +1 more source

Estimation of Genetic Diversity between and within Biparental Clones and Full-Sib Families of the Chinese Pine Using SSR Markers

open access: yesHorticulturae, 2023
Quantifying the genetic diversity present in plant populations is crucial for the success of selection of elite plants and breeding programs. The population structure and partition of genetic variance within and between plant populations allows ...
Shuai Guo   +7 more
doaj   +1 more source

Breeding strategies for recurrent selection of maize Estratégias de melhoramento para seleção recorrente com milho

open access: yesPesquisa Agropecuária Brasileira, 2007
The objectives of this work were to analyze theoretical genetic gains of maize due to recurrent selection among full-sib and half-sib families, obtained by Design I, Full-Sib Design and Half-Sib Design, and genotypic variability and gene loss with long ...
José Marcelo Soriano Viana
doaj   +1 more source

Estimation of genetic diversity in full-sib families of elephant grass Cenchrus purpureus (Schumach.) Morrone

open access: yesPesquisa Agropecuária Tropical, 2023
One of the challenges of the energy sector is the identification of renewable resources with less impact on the environment and that are economically viable. This study aimed to estimate the genetic diversity of eleven full-sib families
Josefa Grasiela Silva Santana   +7 more
doaj   +1 more source

A Reevaluation of Superior Tree Performance After 48 Years for a Loblolly Pine Progeny Test in Southern Arkansas

open access: yesFrontiers in Forests and Global Change, 2021
A plus-tree progeny test of full- and half-sib “superior” loblolly pine (Pinus taeda) was installed in 1969 on the Crossett Experimental Forest (CEF) to consider the performance of 28 improved families with unimproved planting stock from the CEF (family ...
Don C. Bragg
doaj   +1 more source

Generating Improved Experimental Designs with Spatially and Genetically Correlated Observations Using Mixed Models

open access: yesAgronomy, 2018
The aim of this study was to generate and evaluate the efficiency of improved field experiments while simultaneously accounting for spatial correlations and different levels of genetic relatedness using a mixed models framework for orthogonal and non ...
Lazarus K. Mramba   +3 more
doaj   +1 more source

Locally-selected cacao clones for improved yield: a case study in different production systems in a long-term trial

open access: yesFrontiers in Sustainable Food Systems, 2023
Ageing plantations, poor genetic material, soil degradation, pests and diseases are, among other factors, limiting cacao production. To meet the increasing demand for cacao in the absence of productivity gains, forests are cleared and the use of external
Laura Armengot   +5 more
doaj   +1 more source

Reciprocal recurrent selection for obtaining water-deficit tolerant maize progeny

open access: yesCiência Rural, 2021
: In view of the need to increase genetic variability to obtain materials with a significant capacity to drought tolerance, this study conducted a cycle of a reciprocal recurrent selection of full-sib families of maize.
Fernanda Vargas Valadares   +10 more
doaj   +1 more source

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