Results 61 to 70 of about 15,044 (224)
Um Sistema de Informação para Melhoramento Genético de Caprinos e Ovinos
, 2016 Este trabalho descreve um sistema de informacao para melhoramento genetico de caprinos e ovinos, com o objetivo de maximizar o ganho de peso e minimizar o grau de parentesco do rebanho.
Thasciano Carvalho +6 more
semanticscholar +1 more source
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 +4 more
doaj +1 more source
Genetic Evaluation of Barrel Racing Performance in Quarter Horses
Journal of Animal Breeding and Genetics, EarlyView.ABSTRACT Barrel racing is a competitive timed rodeo event that challenges horses and riders to complete a cloverleaf pattern around three barrels in the fastest time possible. In this study, we aimed to estimate the genetic parameters of barrel racing time (BRT) and evaluate the most suitable statistical model for its analysis.
Mário Luiz Santana +2 more
wiley +1 more source
Resistance of Tomato Subsamples to Bemisia tabaci Biotype B (Genn.) (Hemiptera: Aleyrodidae)
Agronomy Journal, Volume 103, Issue 6, Page 1849-1861, November 2011., 2011 Whitefly (Bemisia tabaci) causes damage to tomato (Solanum lycopersicum L.) and is controlled by insecticides harmful to man and the environment. Development of resistant cultivars is ideal for whitefly management, with alternate genetic sources being indispensable. Germplasm banks are potentially good sources of resistant cultivars.
Maria Elisa de Sena Fernandes +5 more
wiley +1 more source
Pesquisa Agropecuária Brasileira, 2007 The objective of this work was to evaluate the soybean inheritance of resistance to cyst nematode races 3 and 14. The following populations where evaluated: one population of recombinant inbred lines (RILs) [Hartwig (resistant) x Y23 (susceptible line ...
Marcia Flores da Silva +7 more
doaj +1 more source
, 2016 The morphological characterization of plant genetic resources is essential for the knowledge of phenotypic variation and relationships among genotypes. This information could be useful in the development of plant breeding programs.
M. Carvalho +6 more
semanticscholar +1 more source
Reactive oxygen species act as signaling molecules to control root hair initiation and tip growth
New Phytologist, EarlyView.Summary Root hairs (RHs) increase the surface area of roots, facilitating nutrient and water uptake and plant anchorage. RHs form from root epidermal cells and elongate by polar tip growth. Reactive oxygen species (ROS) have recently been implicated as important signals that drive RH formation and elongation using both genetic and imaging approaches ...
Megan E. Gerber +2 more
wiley +1 more source
Pesquisa Agropecuária Brasileira, 2005 Algodoeiros de fibras coloridas apresentam qualidade inferior em relação aos de fibra branca, além de menor potencial de rendimento, porque, comparados aos brancos, os coloridos foram pouco explorados em termos de melhoramento genético.
Luiz Paulo de Carvalho +3 more
doaj +1 more source
Obras de melhoramento e reforço de solos [PDF]
Geotecnia, 2017 O artigo descreve os princípios do melhoramento dos solos, enquadrando o seu desenvolvimento inicial, a evolução e as inovações das técnicas ao longo dos tempos e os problemas que tipicamente são resolvidos pela aplicação das mesmas. Aborda os pricípios da consolidação, da compactação e faz referência a técnicas de reforço complementares descrevendo
openaire +2 more sources
Seleção genômica para melhoramento vegetal com diferentes estruturas populacionais
, 2016 The objective of this work was to evaluate the efficiency of genomic selection in different population structure scenarios in popcorn, by estimating the effects of and using markers in the same reference population and in populations not related to each ...
M. Valente +4 more
semanticscholar +1 more source