Results 21 to 30 of about 2,816 (88)

Herdabilidade da necessidade de calor para a antese e brotação em pessegueiro [PDF]

Revista Brasileira de Fruticultura, 2003
A herdabilidade da necessidade de calor para antese e brotação em pessegueiro [Prunus persica (L.) Batsch] foi estudada em ramos de 16 cultivares e seleções de baixa, média e alta necessidade de calor e 11 progênies oriundas de hibridações entre elas. Os
Idemir Citadin, Maria do Carmo Bassols Raseira, Alberto Centellas Quezada, João Baptista da Silva   +3 more
doaj  

Advanced lines of Jalapeño pepper with potential for mechanical harvesting

Ciência Rural, 2019
: The objective of this study was to evaluate the plant and fruit characteristics in advanced lines of Jalapeño pepper for mechanical harvesting. Thus, two experiments were carried out in the field.
Lucas Matias Gomes, Cláudia Silva da Costa Ribeiro, Carlos Francisco Ragassi, Lorena Sousa Silva, Francisco José Becker Reifschneider   +4 more
doaj   +1 more source

Thermal Thresholds and Genetic Sensitivity in Barrel Racing Performance of Quarter Horses Across Temperature–Humidity Indices

Journal of Animal Breeding and Genetics, EarlyView.
ABSTRACT Heat stress is an increasingly important challenge for the performance and welfare of equine athletes, particularly in competitions conducted across diverse climatic conditions. Understanding the genetic basis of performance responses to increasing thermal load is therefore essential to support robust genetic evaluation and sustainable ...
Mário Luiz Santana, Annaiza Braga Bignardi   +1 more
wiley   +1 more source

Seleção e herdabilidade na predição de ganhos genéticos em maracujá-amarelo Selection and heritability in the prediction of genetic gain in yellow passion fruit

Pesquisa Agropecuária Brasileira, 2007
O objetivo deste trabalho foi avaliar a alternativa de seleção para a população de maracujá-amarelo, estruturada no Delineamento I, para obtenção do melhor ganho genotípico predito.
Gustavo Menezes Gonçalves, Alexandre Pio Viana, Francisco Valdevino Bezerra Neto, Messias Gonzaga Pereira, Telma Nair Santana Pereira   +4 more
doaj   +1 more source

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

Journal of Animal Breeding and Genetics, Volume 143, Issue 4, Page 496-507, July 2026.
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.
J. A. Silva, J. P. S. Valente, L. F. M. Mota, G. R. D. Rodrigues, T. L. S. Soares, J. O. S. Marcatto, A. M. Pelaez, F. M. Monteiro, R. C. Canesin, L. G. Albuquerque, M. E. Z. Mercadante   +10 more
wiley   +1 more source

Genotype‐By‐Environment Interaction for Scrotal Circumference in Young Nellore Bulls Under Pasture and Feedlot Conditions and Its Correlation With Days to Calving

Animal Genetics, Volume 57, Issue 2, April 2026.
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
Christiane A. Silva, Annaiza B. Bignardi, Joslaine N. S. G. Cyrillo, Maria E. Z. Mercadante, Mário L. Santana   +4 more
wiley   +1 more source

Seleção simultânea em progênies de açaizeiro irrigado para produção e peso do fruto

Revista Brasileira de Fruticultura, 2011
Para obtenção de materiais superiores, é necessário que o genótipo selecionado reúna, simultaneamente, uma série de atributos favoráveis que satisfaçam às exigências dos consumidores, produtores e processadores. Foram analisadas 50 progênies de açaizeiro
João Tomé de Farias Neto, Marcos Deon Vilela de Resende, Maria do Socorro Padilha de Oliveira   +2 more
doaj   +1 more source

Performance of Beef Cattle Under Grazing as Affected by Urochloa decumbens Cultivars

Grass and Forage Science, Volume 81, Issue 2, April-June 2026.
ABSTRACT Testing animal performance under grazing is fundamental to determine the potential of recently released, high‐yielding Urochloa decumbens hybrids. The objective was to evaluate the weight gain of young bulls grazing on pastures of U. decumbens cultivars Basilisk, BRS Carinás, and BRS Poraitê, as well as to assess the nutritive value and plant ...
Gustavo José Braga, Allan Kardec Braga Ramos, Marcelo Ayres Carvalho, Claudio Takao Karia, Sanzio Carvalho Lima Barrios   +4 more
wiley   +1 more source

Genotypic Variation and Association Mapping for Plant Stature and Anthesis‐Silking Interval in Set of Temperate‐Adapted Maize Lines Developed by DH and SSD Methods

Plant Breeding, Volume 145, Issue 2, Page 204-218, April 2026.
ABSTRACT BS39 is a broad‐based population of tropical maize adapted to temperate environments that can provide useful and unique alleles to US Corn Belt breeding programmes. Doubled‐haploid (DH) has been used as an efficient alternative method to speed up the development of maize lines. Our objectives were to compare genetic parameters for plant height
Gabriela dos Santos Pereira, Iara Gonçalves dos Santos, Nathalia Campos Vilela Resende, Anderson Luiz Verzegnazzi, Ursula K. Frei, Rodrigo Oliveira DeLima, Thomas Lübberstedt   +6 more
wiley   +1 more source

Genomic Prediction and Genome‐Wide Association Analysis of Heat Tolerance for Milk Yield in Buffaloes Using a Reaction Norm Model

Journal of Animal Breeding and Genetics, Volume 143, Issue 2, Page 342-353, March 2026.
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.
Gabriela Stefani, Mário Luiz Santana, Lenira El Faro, Humberto Tonhati   +3 more
wiley   +1 more source