Results 11 to 20 of about 26,955 (224)

Melhoramento do cafeeiro: V - Melhoramento por hibridação [PDF]

Bragantia, 1952
A hibridação como método de melhoramento do cafeeiro, oferece amplas possibilidades que ainda se acham pouco exploradas. Para o caso da espécie C. arabica, a hibridação entre suas variedades, além de fornecer dados seguros sôbre a constituição genética, permite também a verificação de ocorrência da heterose, o melhoramento sem mudança dos caracteres ...
C A Krug, Carvalho A, Krug C A
exaly   +4 more sources

Genetic relationships and genome selection signatures between soybean cultivars from Brazil and United States after decades of breeding [PDF]

Scientific Reports, 2022
Soybean is one of the most important crops worldwide. Brazil and the United States (US) are the world’s two biggest producers of this legume. The increase of publicly available DNA sequencing data as well as high-density genotyping data of multiple ...
João Vitor Maldonado dos Santos, Gustavo Cesar Sant’Ana, Philip Traldi Wysmierski, Matheus Henrique Todeschini, Alexandre Garcia, Anderson Rotter Meda   +5 more
doaj   +2 more sources

Melhoramento da videira [PDF]

Bragantia, 1955
Os primeiros trabalhos sôbre o melhoramento da videira no Brasil datam de 1895 e se devem a Pereira Barreto e seus colaboradores. Entre 1930 e 1940, em Amparo, Paulino Recch, Nicolau Martorano e Pedro Araujo, dedicaram-se ao melhoramento da videira obtendo espécimes de real valor.
exaly   +4 more sources

A apomixia no melhoramento de plantas Apomixis in plant breeding [PDF]

Ciência Rural, 1998
A apomixia, sinônimo de formação assexual da semente, é apresentada como uma valiosa ferramenta no melhoramento de plantas. Os tipos de apomixia existentes, as vantagens e desvantagens de sua utilização no melhoramento e sua base genética são relatados ...
Renata Pereira da Cruz, Luiz Carlos Federizzi, Sandra Cristina Kothe Milach   +2 more
doaj   +5 more sources

Fine Mapping of the Co-12 Anthracnose Resistance Gene in the Andean Common Bean Cultivar in Brazil [PDF]

Plants
The common bean (Phaseolus vulgaris L.) cultivar Jalo Vermelho carries the Co-12 gene, which confers resistance to both Andean and Mesoamerican races of Colletotrichum lindemuthianum. Despite its importance for breeding programs, the genomic location and
Jaqueline Bezerra da Silva, Maria Celeste Gonçalves-Vidigal, Pedro Soares Vidigal Filho, Giselly Figueiredo Lacanallo, Mariana Vaz Bisneta, Giseli Valentini, Larissa Fernanda Sega Xavier   +6 more
doaj   +2 more sources

Melhoramento de Agave por hibridação [PDF]

Bragantia, 1979
Infrutíferos todos os trabalhos visando ao melhoramento de Agave sisalana Perr., por meio de propagação sexual, os estudos voltaram-se para outras espécies, dentre elas duas diplóides: o A. amaniensis e o A. angustifolia: a primeira se caracteriza por apresentar folhas grandes e de boa conformação e, a segunda, por produzir elevado número de folhas ...
Antonio Luiz De Barros Salgado, Dirceu Ciaramello, Anisio Azzini   +2 more
exaly   +4 more sources

Genetic Parameters of Methane Emission, Feed Efficiency, Feeding Behaviour, and Growth Traits in Beef Cattle. [PDF]

J Anim Breed Genet
ABSTRACT Climate change has intensified the need to reduce greenhouse gas emissions, particularly methane (CH4) from enteric fermentation. Genetic selection has emerged as a promising mitigation strategy; however, studies on Bos taurus indicus, especially Nellore cattle, remain limited.
Silva JA, Valente JPS, Mota LFM, Rodrigues GRD, Soares TLS, Marcatto JOS, Pelaez AM, Monteiro FM, Canesin RC, Albuquerque LG, Mercadante MEZ.   +10 more
europepmc   +2 more sources

Genotype-By-Environment Interaction for Scrotal Circumference in Young Nellore Bulls Under Pasture and Feedlot Conditions and Its Correlation With Days to Calving. [PDF]

Anim Genet
ABSTRACT Scrotal circumference (SC) is a key reproductive indicator in beef cattle and an important predictor of male puberty and correlated female fertility. In this study, we evaluated young Nellore bulls raised under combinations of pasture and feedlot environments and modeled SC using a “double” reaction norm model. Additive genetic variance for SC
Silva CA, Bignardi AB, Cyrillo JNSG, Mercadante MEZ, Santana ML.   +4 more
europepmc   +2 more sources

Genetic Parameter Estimation for Pregnancy Loss and Their Association With Reproductive and Growth Traits in Brahman Cattle Under Extensive Tropical Conditions. [PDF]

J Anim Breed Genet
ABSTRACT This study estimated genetic parameters for pregnancy loss (PL) in Brahman cattle and evaluated the genetic correlation of PL with growth and reproductive traits using both the pedigree relationship matrix (A) and pedigree plus genomic relationship matrix (H). Data were collected from two herds in Bolivia, focusing on three age groups: heifers,
Cardona-Cifuentes D, de Albuquerque LG, Arias M, Caivio-Nasner S, Camaripano L, Gonzalez-Herrera LG, Schmidt PI, Baldi F.   +7 more
europepmc   +2 more sources

Genomic Prediction and Genome-Wide Association Analysis of Heat Tolerance for Milk Yield in Buffaloes Using a Reaction Norm Model. [PDF]

J Anim Breed Genet
ABSTRACT The aim of this study was to evaluate the impact of incorporating genomic information on the estimation of genetic (co)variance components and the accuracy of breeding values for milk yield under varying thermal environments, and to identify SNPs associated with genes that play significant roles in heat tolerance.
Stefani G, Santana ML, El Faro L, Tonhati H.   +3 more
europepmc   +2 more sources