Prebreeding
Mostrando 1-12 de 18 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. 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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3. Ovarian response of Suffolk ewes to estrous synchronization using short-term protocol
The efficacy of estrus synchronization using short-term protocol was evaluated by ultrasound exams in Suffolk ewes during the pre-breeding season. The control Group (n = 12) was synchronized by treatment for 12 days with vaginal sponges impregnated with medroxyprogesterone acetate, and 400 IU eCG at sponge withdrawal. Experimental groups I, II and III kept t
Revista Brasileira de Zootecnia. Publicado em: 2012-02
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4. Genetic diversity of American wild rice species
Studies on genetic diversity and genetic structure of natural populations are important in order to define strategies for in situ and ex situ conservation actions and for plant pre-breeding programs. Aiming to assess the genetic diversity and genetic structure of three wild American Oryza species with isozyme markers, 14 populations of the diploid O. glumaep
Scientia Agricola. Publicado em: 2011-08
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5. Heliconia genotypes under partial shade: I. Shooting and Blooming.
2009
Acta Horticulturae. Publicado em: 2011
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6. Heliconia genotypes under partial shade: II. Evaluation of Flowering Stems.
2009
Acta Horticulturae. Publicado em: 2011
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7. Evaluation of maize core collection for drought tolerance.
The maize genebank (GBmaize) preserves nearly 4,000 accessions for conservation and use. The use is however restricted because the accessions do not performs as well as the elite genotypes. This problem can be reduced by pre-breeding, i. e., by extending the information on germplasm and introgressing useful alleles. Since irregular rainfall distribution and
Crop Breeding and Applied Biotechnology. Publicado em: 2011
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8. Proposta para ampliação da base genética por meio de cruzamento interespecífico no pré-melhoramento do tomateiro / Proposal for amplification the genetic base for interespecific cross in tomato pre-breeding.
The aim of this study was to evaluate: 1 - the variability among families resistant PepYMV from the crossing between S.lycopersicum and S.habrochaites; 2 - the contribution of variability in this cross for the breeding of tomato. The diversity assessment was performed with a square lattice design experiment with two replications and three plants per plot. Th
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 12/03/2010
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9. Resistance of tomato genotypes to the greenhouse whitefly Trialeurodes vaporariorum (West.) (Hemiptera: Aleyrodidae)
The greenhouse whitefly, Trialeurodes vaporariorum Westwood, is the most common and abundant whitefly in Argentine horticultural greenhouse crops, especially in tomato (Solanum lycopersicum). Resistance in some wild tomato relatives, such as S. peruvianum, S. habrochaites and S. pennellii to the greenhouse whitefly has been described. The Mi gene confers eff
Neotropical Entomology. Publicado em: 2010-10
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10. Capacidade de combinação e depressão por endogamia em populações de milho crioulo
The maize landraces are genotypes that have special features like wide genetic variability, which is noticeable through the color of grain, plant architecture and yield of their representatives. By presenting these different qualitative characteristics becomes important to perform a quantitative characterization of these genotypes for use in maize pre-breedi
Publicado em: 2010
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11. Obtenção de SNPs, reação do feijoeiro comum à ferrugem da soja e piramidação de genes de resistência a Uromyces appendiculatus / SNP discovery, reaction of the common bean to soybean rust, and pyramiding of resistance genes to Uromyces appendiculatus
Este trabalho apresenta resultados de pesquisas desenvolvidas no âmbito do Programa de Melhoramento do Feijoeiro conduzido na Universidade Federal de Viçosa (UFV), sendo este composto por seções ou subprojetos distintos. Desta forma, optou-se por redigi-lo na forma de artigos científicos, sendo um de revisão e quatro de resultados originais, os quais j
Publicado em: 2009
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12. Exploring natural genetic variation from wild species related to tomato in the Micro-Tom model (Solanum lycopersicum L. cv Micro-Tom) / Explorando a variação genética natural das espécies selvagens relacionadas ao tomateiro no modelo Micro-Tom (Solanum lycopersicum L. cv Micro-Tom)
Tomato wild species evolved in a wide range of latitudes, from the south of Ecuador to the north of Chile, which comprise different habitats and are a source of natural genetic variation. This diversity is commonly used in tomato breeding, especially for the introgression of genes for resistance to pathogens and, recently, for fruit quality. Although natural
Publicado em: 2008