Crossbreeding
Mostrando 1-12 de 87 artigos, teses e dissertações.
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1. AGRONOMIC CHARACTERIZATION OF SWEET POTATO GENOTYPES OBTAINED THROUGH CROSSBREEDING
RESUMO O rendimento médio nacional da batata-doce está abaixo do potencial produtivo da cultura, principalmente devido ao cultivo de variedades locais e não melhoradas que apresentam baixos rendimentos. Para melhorar essa condição, junto com tratamentos culturais adequados, deve-se buscar cultivares mais produtivas. Assim, objetivou-se caracterizar gen�
Revista Caatinga. Publicado em: 2022
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2. AGRONOMIC POTENTIAL AND GENETIC DIVERSITY OF LANDRACES OF COWPEA OF THE STATE OF CEARÁ
RESUMO Variedades tradicionais são fontes de variabilidade genética, principalmente no que se refere a alelos que conferem tolerância a fatores bióticos e abióticos e, portanto, podem auxiliar os programas de melhoramento no desenvolvimento de cultivares promissoras. Contudo, torna-se necessário conhecer esse patrimônio genético em nível que permita
Rev. Caatinga. Publicado em: 21/10/2019
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3. Relationship between meiotic instability and fertility in F2 generation Arabusta coffee plants
ABSTRACT Parental plants, an F1 interspecific hybrid and the F2 generation from Arabusta coffee plants were investigated for meiotic behavior and viability of pollen to understand part of their reproductive biology that affects their possible use in coffee breeding programs. Both parental plants (C. canephora var. Robusta 4x and C. arabica var. dihaploid Bou
Bragantia. Publicado em: 18/04/2019
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4. Crossbreeding locally adapted hair sheep to improve productivity and meat quality
ABSTRACT: The use of lambs from crossing of local with specialized sheep breeds for meat production may lead to higher meat deposition and a smaller fat amount in the carcass, with a more adequate nutritional profile for human consumption. This study investigated the performance, carcass and meat characteristics of lambs from the Morada Nova and Santa Inês
Sci. agric. (Piracicaba, Braz.). Publicado em: 2018-08
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5. Genetic transformation of Brachiaria brizantha cv. Marandu by biolistics
ABSTRACT Brachiaria brizantha is a forage grass well adapted to tropical areas and cultivated in millions of hectares in Brazil. The apomictic mode of reproduction in this species, in addition to differences in ploidy between sexual and apomictic plants, impairs crossbreeding. The development of a methodology to transform apomictic cultivars will provide an
An. Acad. Bras. Ciênc.. Publicado em: 2018-04
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6. Description and characterization of the melanic morphotype of Rhodnius nasutus Stål, 1859 (Hemiptera: Reduviidae: Triatominae)
IntroductionFor the first time we provide the description of the melanic (dark) morphotype of Rhodnius nasutus and determine the pattern of genetic inheritance for this characteristic.MethodsDark morph R. nasutus specimens were crossbred with standard (typically patterned) R. nasutus.ResultsWe present the first occurrence of the melanic morphotype in the gen
Rev. Soc. Bras. Med. Trop.. Publicado em: 2014-10
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7. Effects of crossbreeding on slaughter traits and breast muscle chemical composition in chinese chickens
We investigated the effects of crossbreeding on slaughter traits and the chemical composition of chicken breast muscle. Trials were conducted using 120 broilers from four lines: Xiao-Shan chicken (XS), Xian-Ju chicken (XJ), Xiao-Shan chicken♂♂ × Xian-Ju chicken♀♀ (Zhenan 1, ZNY1) and Xiao-Shan chicken♂♂ × (Guang-Xi Yellow chicken♂♂×Xian-Ju
Revista Brasileira de Ciência Avícola. Publicado em: 2011-12
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8. Carcass quality of crossbred steers with different degrees of zebu blood in the genotype: meta-analysis
In order to evaluate the effect of the different percentages of zebu blood in the genotype of crossbred steers on carcass traits, a meta-analysis was carried out, using 30 studies conducted in Brazil that have been published since the year 2000. The parameters evaluated were hot carcass weight (221 estimates), cold carcass weight (232), hot carcass (236) and
Revista Brasileira de Zootecnia. Publicado em: 2011-11
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9. Production indices for dual purpose cattle in central Brazil
This study examined the effects of crossbreeding low genetic potential cows of Bos indicus origin characterized by Gyr crossed with Holstein-Friesian and Simmental bulls to produce animals in a low input dual purpose system. The farm is situated near Brasilia, in the savannah region of Brazil. The climate of the region is classified as Aw by Köppen. Data wa
Revista Brasileira de Zootecnia. Publicado em: 2011-07
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10. Efeito de parâmetros ambientais sobre as primeiras atividades de bezerros puros e cruzados após o parto.
2002
REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA. Publicado em: 2011
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11. Relações de pesos de bezerros filhos de vacas Nelores e cruzadas Canchim x Nelore.
1998
REUNIAO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA. Publicado em: 2011
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12. Fruit set success of the three mango (Mangifera indica L.) varieties by using reciprocal crosses.
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Planaltina: Embrapa Cerrados. Publicado em: 2011