Pre Breeding
Mostrando 1-12 de 71 artigos, teses e dissertações.
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1. Genetic diversity of bushy cashew (Anacardium humile A. St.-Hil.) based on characteristics of fruits
Resumo O conhecimento da variabilidade genética entre genótipos de Cajuzinho-do-cerrado é importante para estabelecer estratégias de pré-melhoramento e uso em programa de melhoramento. Objetivou-se com este trabalho avaliar a diversidade genética de Cajuzinho-do-cerrado por meio da avaliação de características físicas, químicas e físico-química
Rev. Bras. Frutic.. Publicado em: 14/11/2019
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2. Predicting breeding value of body weight at 6-month age using Artificial Neural Networks in Kermani sheep breed
ABSTRACT. The present study aimed to apply artificial neural networks to predict the breeding values of body weight in 6-month age of Kermani sheep. For this purpose, records of 867 lambs including lamb sex, dam age, birth weight, weaning weight, age at 3-month (3 months old), age at 6-month (6 months old) and body weight at 3 months of age were used. Firstl
Acta Sci., Anim. Sci.. Publicado em: 04/07/2019
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3. Genetic progress, adaptability and stability of maize cultivars for value of cultivation and use trials
ABSTRACT. Maize breeding programs conduct multi-environment trials every year to assess the performance of new cultivars in pre-releasing tests. The data are combined across sites and seasons to perform a joint analysis in order to obtain information that will help breeders to select the best cultivars for different environments. Beyond this, it is essential
Acta Sci., Agron.. Publicado em: 13/06/2019
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4. PRODUCTIVE PERFORMANCE OF PRE-WEANED CALVES REARED IN THE PANTANAL
Resumo A desmama precoce (DP) vem sendo adotada nas fazendas de cria do Pantanal como alternativa para o aumento dos índices de concepção das vacas. A principal receita dessas propriedades são os bezerros (as), sendo o seu valor dependente dos seus respectivos pesos. Assim é necessário que os bezerros submetidos à DP, apresentem pesos semelhantes ou a
Ciênc. anim. bras.. Publicado em: 04/02/2019
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5. Selection index based on phenotypic and genotypic values predicted by REML/BLUP in Papaya
Resumo A seleção de genótipos superiores com base na resposta simultânea à diferentes caracteres é uma estratégia fundamental no melhoramento de plantas. Neste estudo objetivou-se comparar a eficiência de quatro índices de seleção construídos a partir de valores fenotípicos e genotípicos, em uma população segregante da cultivar Rubi Incaper
Rev. Bras. Frutic.. Publicado em: 31/01/2019
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6. Hierarchical and optimization methods for the characterization of tomato genotypes
RESUMO Uma correta caracterização de bancos de germoplasma é fundamental para melhoristas obterem sucesso em programas de melhoramento. Várias pesquisas têm buscado obtenção de genótipos com resistência a pragas. No entanto, não há um consenso em relação a qual metodologia é a mais adequada para caracterizar um banco de germoplasma de tomateiro
Rev. bras. eng. agríc. ambient.. Publicado em: 2019-01
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7. Capitulum and floret phenology in Baccharis aliena (Asteraceae, Astereae)
Abstract Inflorescence and floral phenological studies are a source of valuable knowledge to interpret reproductive mechanisms and phylogenetic hypothesis in plants. We analyzed the morphology and functionality floret stages that are present in pistillate homogamous and functionally staminate heterogamous capitula of the dioecious species Baccharis aliena. P
Rodriguésia. Publicado em: 2018-06
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8. Effective population size and the genetic consequences of commercial whaling on the humpback whales (Megaptera novaeangliae) from Southwestern Atlantic Ocean
Abstract Genotypes of 10 microsatellite loci of 420 humpback whales from the Southwestern Atlantic Ocean population were used to estimate for the first time its contemporary effective (Ne) and census (Nc) population sizes and to test the genetic effect of commercial whaling. The results are in agreement with our previous studies that found high genetic diver
Genet. Mol. Biol.. Publicado em: 2018
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9. Genome-wide association study of pre-harvest sprouting resistance in Chinese wheat founder parents
Abstract Pre-harvest sprouting (PHS) is a major abiotic factor affecting grain weight and quality, and is caused by an early break in seed dormancy. Association mapping (AM) is used to detect correlations between phenotypes and genotypes based on linkage disequilibrium (LD) in wheat breeding programs. We evaluated seed dormancy in 80 Chinese wheat founder pa
Genet. Mol. Biol.. Publicado em: 10/07/2017
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10. Biometry and ultrasound evaluation of testicles and accessory glands in Santa Ines rams
ABSTRACT This work aimed to investigate the relationship between echogenicity, testicular biometry, and accessory gland biometry and evaluate the echogenicity pattern of these structures in Santa Ines rams. Fifty-four healthy Santa Ines sheep were classified into three age groups: group 1 - 3 to 5 months (pre-pubertal); group 2 - 7 to 11 months (pubertal); a
R. Bras. Zootec.. Publicado em: 2017-04
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11. Yield, market quality, and leaf spots partial resistance of interspecific peanut progenies
Development of leaf spots resistant runner peanut cultivars is one of the major demands in Brazil. In the 2009/10 crop season, 12 pre-breeding progenies (LPM) were selected out of 380 plants of an interspecific BC1F3 population for leaf spots resistance and agronomic traits. In the 2010/11, the 12 LPMs were evaluated for leaf spots resistance, without fungic
Crop Breed. Appl. Biotechnol.. Publicado em: 2015-09
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12. Biology and management of the masked chafer Cyclocephala distincta Burmeister (Melolonthidae, Dynastinae, Cyclocephalini)
Adults of Cyclocephala distincta are flower visitors of Neotropical palms (Arecaceae) and commonly found in the Atlantic Forest of Pernambuco, Brazil. Males and females were collected in the wild and subjected to captive rearing and breeding. The egg hatching rate, the life cycle, longevity of immatures and adults, and oviposition parameters in captivity wer
Rev. Bras. entomol.. Publicado em: 2015-03