Genetic Improvement Of Plants
Mostrando 1-12 de 76 artigos, teses e dissertações.
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1. Metabolomic and Histological Response of Passiflora cincinnata Infected with Cowpea aphid-borne mosaic virus (CABMV) Reveals Changes in Asymptomatic and Symptomatic Phases
Passion fruit woodiness disease, caused by the Cowpea aphid-borne mosaic virus (CABMV), is one of the leading phytosanitary challenges of passion fruit production. Passiflora cincinnata has been recognized for its potential in genetic improvement due to its highest resistance to CABMV and other phytopathogens. Metabolomic and histological alterations of P. c
Journal of the Brazilian Chemical Society. Publicado em: 2022
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2. GROWTH PROMOTION OF GENETICALLY IMPROVED Pinus taeda SEEDLINGS BY INOCULATION WITH SPECIES OF Bacillus.
ABSTRACT This study was carried on evaluating effects of inoculation with Bacillus species and generations of genetically improved seeds on Pinus taeda growth in nursery conditions. Two experiments, based on distinct inoculation methods (sowing and post-emergence) were performed under a 3 x 2 factorial, completely randomized block design (3 levels of inocula
CERNE. Publicado em: 2020-12
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3. Selection in segregating populations of ornamental pepper plants (Capsicum annuum L.) using multidimensional scaling
ABSTRACT Multidimensional scaling is a multivariate analysis technique that can be used to exploit genetic diversity, aiming at the selection of Capsicum genotypes with desirable characteristics for in-pot ornamental purposes. This work aimed to select genotypes with ornamental potential within F4 populations of ornamental pepper plants. Three F4 families we
Rev. Ceres. Publicado em: 2020-12
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4. Selection gain and interrelations between agronomic traits in wheat F5 genotypes
ABSTRACT This work aimed to estimate the variance components and genetic parameters, the selection gain, and the cause and effect relationships among traits in order to identify important traits for direct and indirect selection of wheat (Triticum aestivum L.) lines. Three strategies were used to obtain selection gains: direct and indirect selection, an inde
Rev. Ceres. Publicado em: 03/10/2019
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5. Floral phenology, seed germination and hybrid plants of the Amerindian yam (Dioscorea trifida)
RESUMO O cará (Dioscorea trifida) é uma planta alimentícia nativa da Amazônia. Diversas variedades locais são cultivadas por agricultores familiares para consumo e comercialização local. Porém, processos socioeconômicos podem estar causando a erosão genética da espécie. O conhecimento sobre a reprodução sexuada da espécie é essencial para sua
Acta Amaz.. Publicado em: 12/08/2019
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6. Maize: Key agricultural crop in food security and sovereignty in a future with water scarcity
RESUMO O objetivo nesta revisão foi discutir a importância da cultura do milho na atualidade e o papel crucial que pode desempenhar no futuro para a produção de alimentos em cenários de deficiência hídrica, bem como a importância de conservar suas cultivares crioulas, que detêm uma parcela considerável dessa reserva de variabilidade genética. As p
Rev. bras. eng. agríc. ambient.. Publicado em: 12/08/2019
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7. Study of repeatability and phenotypical stabilization in kale using frequentist, Bayesian and bootstrap resampling approaches
ABSTRACT. The aim of this study was to obtain information for the genetic improvement of kale through repeatability and phenotypic stabilization studies and to compare methodologies that represent the reliability of the estimated parameters. Thirty-three half-sib progenies were evaluated in a randomized block design with three replicates and six plants per p
Acta Sci., Agron.. Publicado em: 13/06/2019
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8. Detection of Somaclonal Variation in Micropropagated and Acclimatized Plantlets of Oryza sativa MRQ 74 from Stem Explants
RESUMO: No sistema de cultura de tecidos de plantas, o fornecimento excessivo de hormônios de crescimento vegetal pode inibir o crescimento e desenvolvimento dos regenerantes e, às vezes, induzir a variação somaclonal. Neste estudo, a concentração ideal de hormônios de crescimento para regeneração in vitro de Oryza sativa L. cv. MRQ 74 foi identific
Planta daninha. Publicado em: 08/04/2019
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9. Gene transfer utilizing pollen-tubes of Albuca nelsonii and Tulbaghia violacea
Abstract Developing a tissue culture-independent genetic transformation system would be an interesting technique for gene transfer in valuable medicinal and horticultural plants. Efficient gene delivery (Agrobacterium tumefaciens strain LBA 4404: harbouring PBI121 plasmid) was achieved with Km-resistant pollen grains (pollen tube technique) and were found to
Crop Breed. Appl. Biotechnol.. Publicado em: 2017-09
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10. Marker-assisted screening of breeding populations of an apomictic grass Cenchrus ciliaris L. segregating for the mode of reproduction
Abstract Cenchrus ciliaris L. is an apomictic forage grass grown in pastures and rangelands of the semi-arid tropics. It reproduces predominantly through apomixis; rarely, obligate sexual plants have also been reported. Absence of sexual reproduction limits the possibility of genetic improvement through hybridization. This study reports on hybridization of a
Crop Breed. Appl. Biotechnol.. Publicado em: 2017-03
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11. Tissue culture efficiency of wheat species with different genomic formulas
Abstract Ancient wheats are increasingly considered as valuable resources for genes of interest which could be analyzed and introduced into cultivated varieties by genetic engineering technologies. The first stage of biotechnological crop improvement consists of successful in vitro plant regeneration. Twelve wheat germplasms with different genomic formulas (
Crop Breed. Appl. Biotechnol.. Publicado em: 2016-12
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12. Recurrent Somatic Embryogenesis and Plantlet Regeneration in Psidium guajava L.
A simple and efficient protocol for recurrent somatic embryogenesis and plant regeneration is one of the prerequisites for genetic improvement of guava. An efficient reproducible regeneration somatic embryogenesis protocol was developed in four genotypes of Psidium guajava L. using immature zygotic embryo as starter explant. Somatic embryogenesis induction w
Braz. arch. biol. technol.. Publicado em: 06/05/2016