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Agronomic performance of onion hybrids in Baraúna, in the semi-arid region of Brazil Rev. Ciênc. Agron.
Nunes,Renato Leandro Costa; Oliveira,Alexandre Bosco de; Dutra,Alek Sandro.
In the Brazilian state of Rio Grande do Norte, the significant planting of onions is relatively recent, with producers seeking alternative ways to reduce losses. As a result, it was aimed to evaluate the agronomic performance of onion hybrids in the town of Baraúna in the semi-arid region of Rio Grande do Norte. The experimental design was of randomised blocks with six replications. Treatments consisted of eight hybrids (Cronus F1, Predilata F1, Serena F1, Fortaleza F1, Mata Hari, Luana, Lambada, Don Victor) and a control cultivar (IPA 11). The following were evaluated: average plant height; average number of leaves; diameter of the pseudostem; productivity; average bulb weight; rate of survival; leaf-waxiness; cultivar cycle; commercial classification of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Allium cepa; Productivity; Precocity; Bulb classification.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902014000300023
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Early performance of ‘Kampai’ and ‘Rubimel’ peach on 3 training systems Bragantia
Pasa,Mateus da Silveira; Fachinello,José Carlos; Schmitz,Juliano Dutra; Rosa Júnior,Horacy Fagundes da; Franceschi,Émerson de; Carra,Bruno; Giovanaz,Marcos Antônio; Silva,Carina Pereira da.
ABSTRACT The aim of this study was to examine the early performance of ‘Kampai’ and ‘Rubimel’ peach on 3 training systems. The study was conducted between 2010 and 2013. Treatments were the training systems ‘Ypsilon’, Central Leader, and Open Center, arranged in a randomized complete block design. Assessed parameters were production per tree, fruit weight, yield, fruit firmness, and soluble solids. The early yield and economic return are greater in Central Leader training system for both cultivars. Besides, training system does not influence fruit quality attributes.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Prunus persica; Yield; Precocity; Planting density.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052017000100082
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Genetic analysis of visual scores and their relationships to mature female weight in Nellore breed R. Bras. Zootec.
Regatieri,Inaê Cristina; Boligon,Arione Augusti; Albuquerque,Lucia Galvão de.
Data from 79,884 Nellore breed animals were used to estimate genetic parameters and to evaluate the relationships among scores of conformation, precocity and musculature obtained at weaning and after yearling ages and weight of mature females. It was used the restricted maximum likelihood method in a multi-trait analysis with the model that included direct additive genetic and residual effects, as random effects, and the fixed effects of contemporary group and, as covariables, animal age at weighing and age of dam at calving (except for weight of females at adult age). Contemporary groups at weaning were defined by the variables: sex, herd, year and month of birth, and management group at birth and weaning. For definition of contemporary group at yearling,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Beef cattle; Conformation; Genetic correlation; Musculature; Precocity.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000100014
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Gibberellic acid in vegetative and reproductive development of Phalaenopsis orchid hybrid genus Horticultura Brasileira
Cardoso,Jean C; Ono,Elizabeth O; Rodrigues,João D.
The flower industry represents about one billion dollars in Brazil and the development of techniques aimed at flowering control is required. This study evaluated the influence of gibberellic acid (GA3) on the vegetative and reproductive development of young plants of Phalaenopsis FSNT 'Dai-Itigo' hybrid pink color. The application of GA3 was made by foliar sprays at concentrations of 0, 125, 250, 500 and 1,000 mg L -1. The length of leaves increased significantly when using GA3 at low concentrations, but leaf width decreased. The application of GA3 at 125 mg L -1 showed the best results for the promotion of flowering and flower quality of this orchid hybrid. In this treatment, about 50% of plants treated with GA3 flowered about 6-12 months before the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Phalenopsis; Young plants; Leaf size; Precocity; Flowering; Quality.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362012000100012
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REPRODUCTIVE TRAITS SELECTION IN NELORE BEEF CATTLE Ciência e Agrotecnologia
Moreira,Heverton Luis; Buzanskas,Marcos Eli; Munari,Danisio Prado; Canova,Érika Breda; Lôbo,Raysildo Barbosa; Paz,Claudia Cristina Paro de.
Genetic breeding programs of beef cattle in Brazil are including new features, mainly related to reproductive efficiency.Thus, it is necessary to study the effectiveness of selection and quantify genetic gain for these traits in herds. This study estimated genetic and phenotypic parameters and genetic trends for reproductive traits used in breeding programs for Nelore beef cattle. The traits studied were the scrotal circumference (SC) at 365 and 450 days of age (SC365 and SC450), age at first calving (AFC) and gestation length, as a cow trait (GLcow) and a calf trait (GLcalf). The (co)variance components were obtained with the Restricted Maximum Likelihood Methodology in a single and double-trait analysis of the animal model. For scrotal circumference...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Reproductive efficiency; Genetic evaluation; Precocity.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542015000400355
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Valinia INIA, a New Early Storage Onion Variety for Central South Chile Chilean J. Agric. Res.
González A,María Inés; Herrera V,Patricia.
In Central South Chile, storage onion varieties (Allium cepa L.) sold domestically usually begin the maturation process in March, which implies that a large proportion of bulbs do not mature adequately and do not resist prolonged storage. This situation led the Quilamapu vegetable program of the Instituto de Investigaciones Agropecuarias INIA to select an early maturing onion variety. This breeding method involved a recurrent selection with free plant crossing that began in 1994 on a population of 2000 plants of the 'Valenciana' commercial variety. Plants were first selected when they reached physiological maturity (tops down before 28 February), and then for shape, size, storage capacity, and single-centered bulbs. The result of the program was 'Valinia...
Tipo: Journal article Palavras-chave: Cultivar; Precocity; Storage capacity; Single center.
Ano: 2012 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000100003
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