Consulta: subjectFacets:"Apomixis"
Registros recuperados: 22
Data/hora: 04/06/2024 04:45:44

From anthesis to diaspore dispersal: reproductive mechanisms of rare herbaceous moraceae species endemic to Brazil
Provedor de dados: Darwiniana
Autores: Márcia de Araújo,Luzia; Valentin-Silva,Adriano; Fernandes,Geraldo W; Vieira,Milene F.
Studies on the reproductive biology of Dorstenia species are scarce. We analyzed the sexuality, floral biology, and diaspore dispersal of Dorstenia arifolia and D. bonijesu, including their breeding systems and pollinators, in natural populations from Minas Gerais state, southeastern Brazil. We report here, for the first time, the occurrence of both unisexual (male) and bisexual coenanthia on the same individuals of Dorstenia arifolia, while only bisexual coenanthia were observed in D. bonijesu. In both species all coenanthia were long-lived and bisexual coenanthia were protogynous. We observed the occurrence of self-compatibility and myophily in Dorstenia arifolia, a species which was pollinated by small Lauxaniidae flies. Those insects not only used...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apomixis; Hydrochory; Lauxaniidae; Myophily; Oviposition site.
Ano: 2017
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0011-67932017000100005

Estudios en el género Cortaderia (Poaceae): I. Sistemática y nomenclatura de la sect. Cortaderia
Provedor de dados: Darwiniana
Autores: Testoni,Daniel; Villamil,Carlos B.
El género Cortaderia (Poaceae) incluye 19 especies sudamericanas separadas en cuatro secciones. En este trabajo se estudian las especies incluidas en la sect. Cortaderia. Cortaderia rudiuscula y C. jubata son dos nombres utilizados con diferentes criterios según diferentes autores, lo que ha generado confusión y explica los numerosos ejemplares de herbario determinados sucesivamente como diferentes especies de la sección. La descripción original de C. rudiuscula fue realizada sobre la base de cuatro sintipos que corresponden a más de una especie. En esta contribución se analizaron los ejemplares tipo y otros materiales de herbario identificados como C. rudiuscula, además de plantas coleccionadas en muestreos poblacionales para este trabajo, y ejemplares de...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Análisis multivariado; Apomixis; Cortaderia; Ginodioecia; Poaceae; Sistemática.
Ano: 2014
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0011-67932014000200007

Cytogenetics and embryology of Eupatorium laevigatum (Compositae)
Provedor de dados: Genetics and Molecular Biology
Autores: Bertasso-Borges,Maristela Sanches; Coleman,James Robert.
Embryological studies indicate Eupatorium laevigatum to have Antennaria type diplospory with precocious embryony. The embryo sac is of the Polygonum type and the polar nuclei fuse before anthesis (maturation of the stamens). Endosperm development is autonomous and the central cell divides only after the initial stages of embryo formation. It is estimated that about 10% of the florets in anthesis contain an undivided egg which can be used for sexual reproduction. The study of microsporogenesis revealed abnormalities in chromosome pairing which result in the formation of univalents, bivalents, trivalents and higher polyvalents, with the consequent production of lagging chromosomes, unbalanced nuclei, micronuclei and sterile pollen. We found that, as...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Eupatorium; Apomixis; Plant cytogenetics; Plant embryology; Asteraceae.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572005000100022

Ecological setup, ploidy diversity, and reproductive biology of Paspalum modestum, a promising wetland forage grass from South America
Provedor de dados: Genetics and Molecular Biology
Autores: Karunarathne,Piyal; Feduzka,Cristian; Diego,Hojsgaard.
Abstract With ever-rising demand for food, forage breeding for intensification of cattle production is also taking a leap. In South America, cattle production systems are displaced to marginal areas poorly exploited with cultivated pastures yet with high potential for growing stocking rates. This places the need for using native genetic resources to breed locally adapted plant genotypes that benefits from better forage quality, yield, and lesser threat to the local biodiversity. Paspalum modestum Mez is a grass species that produces quality forage and grows in marginal areas like estuaries and floodplains, suitable for introduction in breeding programs. In this study we characterize the species' reproductive biology and ecological preferences needed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apomixis; Ecological niche; Plant breeding; Polyploidy; Sexuality.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000300304

Sequence characterization, in silico mapping and cytosine methylation analysis of markers linked to apospory in Paspalum notatum
Provedor de dados: Genetics and Molecular Biology
Autores: Podio,Maricel; Rodríguez,María P.; Felitti,Silvina; Stein,Juliana; Martínez,Eric J.; Siena,Lorena A.; Quarin,Camilo L.; Pessino,Silvina C.; Ortiz,Juan Pablo A.
In previous studies we reported the identification of several AFLP, RAPD and RFLP molecular markers linked to apospory in Paspalum notatum. The objective of this work was to sequence these markers, obtain their flanking regions by chromosome walking and perform an in silico mapping analysis in rice and maize. The methylation status of two apospory-related sequences was also assessed using methylation-sensitive RFLP experiments. Fourteen molecular markers were analyzed and several protein-coding sequences were identified. Copy number estimates and RFLP linkage analysis showed that the sequence PnMAI3 displayed 2-4 copies per genome and linkage to apospory. Extension of this marker by chromosome walking revealed an additional protein-coding sequence mapping...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apomixis; Chromosome walking; Gene mapping; Molecular markers.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572012000500018

BRS Ipyporã ("belo começo" em guarani): híbrido de Brachiaria da Embrapa.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: VALLE, C. B. do; EUCLIDES, V. P. B.; MONTAGNER, D. B.; VALERIO, J. R.; MENDES-BONATTO, A. B.; VERZIGNASSI, J. R.; TORRES, F. Z. V.; MACEDO, M. C. M.; FERNANDES, C. D.; BARRIOS, S. C. L.; DIAS FILHO, M. B.; MACHADO, L. A. Z.; ZIMMER, A. H.
O híbrido BRS RB331 Ipyporã é resultado de um cruzamento entre B. ruziziensis e B. brizantha realizado em 1992, na Embrapa Gado de Corte e liberado pela Embrapa em 2017 em parceria com a UNIPASTO, após 13 anos intermitentes de avaliações. É uma planta de porte baixo, prostrado, com colmos delgados de bainhas muito pilosas e folhas pilosas em ambas as faces. As espiguetas são uniseriadas e com pouca ou nenhuma pilosidade. A BRS Ipyporã entra no mercado para suprir a demanda por uma cultivar de Brachiaria de boa produtividade e manejo relativamente fácil, como a cv. Marandu, porém com elevado grau de resistência à cigarrinha da cana do gênero Mahanarva, além de apresentar resistência às cigarrinhas típicas de pastagem dos gêneros Deois e Notozulia,...
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Desempenho animal; Híbrido interespecífico.; Brachiaria brizantha; Cigarrinha; Valor nutritivo; Semente; Apomixia.; Urochloa brizantha; Cercopidae; Apomixis; Animal performance; Interspecific hybridization; Seeds; Nutritive value.
Ano: 2017
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1069732

Obtenção de híbridos intra-específicos de forrageiras apomíticas tropicais: estratégia de melhoramento genético para Panicum maximum.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: RESENDE, R. M. S.; JANK, L.; VALLE, C. B.; BONATO, A. N. V.
bitstream/item/104660/1/Obtencao-de-hibridos-intra-especifico.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Apomixia; Melhoramento Genético Vegetal; Panicum Maximum.; Apomixis; Plant breeding.
Ano: 2004
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/326135

Sorghum in the Eighties
Provedor de dados: Open Acess Agriculture Research Repository
Palavras-chave: Sorghum; Cytoplasm; Apomixis; Genotypes; Hybrids; Genes; Grain; Breeds (animals); Cereals.
Ano: 1982
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/3994

Biometrical analysis and selection of tetraploid progenies of Panicum maximum using mixed model methods
Provedor de dados: Pesquisa Agropecuária Brasileira
Autores: Resende,Rosangela Maria Simeão; Jank,Liana; Valle,Cacilda Borges do; Bonato,Ana Lídia Variani.
The objectives of this work were to estimate the genetic and phenotypic parameters and to predict the genetic and genotypic values of the selection candidates obtained from intraspecific crosses in Panicum maximum as well as the performance of the hybrid progeny of the existing and projected crosses. Seventy-nine intraspecific hybrids obtained from artificial crosses among five apomictic and three sexual autotetraploid individuals were evaluated in a clonal test with two replications and ten plants per plot. Green matter yield, total and leaf dry matter yields and leaf percentage were evaluated in five cuts per year during three years. Genetic parameters were estimated and breeding and genotypic values were predicted using the restricted maximum...
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Guineagrass; Apomixis; Breeding; Heritability; Repeatability; Selection of parents.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2004000400006

Molecular markers to study the variability within the Eragrostis curvula complex
Provedor de dados: Phyton: Revista Internacional de Botánica Experimental
Autores: Zappacosta,D; Meier,M; Carrera,A; Pacheco,G; Cardone,S; Selva,JP; Echenique,V.
Weeping lovegrass is well adapted for forage production and useful for soil conservation in semiarid regions, constituting a morphologically diverse group. Diploid genotypes are unfrequent and reproduce sexually, whereas the tetraploids and plants of higher ploidy levels reproduce by apomixis. In the present work RAPD, AFLP and EST-SSR were used in order to assess the reproductive mode through progeny tests, to determine intracultivar homogeneity or seed purity, to establish genetic relationships among the cultivars within the complex and to characterize the new materials obtained by our group. Eight commercial cultivars and three new plant materials were analyzed. Uniform and variable patterns were observed in progenies of apomictic and sexual plants,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Eragrostis; Molecular markers; Apomixis; Seed purity; Cultivar identification.
Ano: 2011
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572011000200014

Sistemas reprodutivos de espécies de Melastomataceae da Serra do Japi, Jundiaí, São Paulo, Brasil
Provedor de dados: Revista Brasileira de Botânica
Autores: GOLDENBERG,RENATO; VARASSIN,ISABELA GALARDA.
Neste trabalho foram investigados os sistemas reprodutivos de espécies de Melastomataceae ocorrentes em formações florestais da Serra do Japi. Esta investigação foi baseada em polinizações controladas e em análises de viabilidade de pólen e de crescimento de tubo polínico. Entre as populações de 13 espécies estudadas, sete mostraram produção de frutos apomíticos (Leandra australis, L. melastomoides, L. purpurascens, Miconia latecrenata, M. petropolitana, Ossaea amygdaloides e O. confertiflora). Entre as seis espécies não apomíticas, apenas uma apresentou mecanismo de auto-incompatibilidade (Miconia pusilliflora), enquanto que as demais se mostraram auto-compatíveis (Leandra dasytricha, L. regnellii, Tibouchina cerastifolia, T. sellowiana e T....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Plant reproduction; Breeding systems; Apomixis; Melastomataceae.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042001000300006

Determination of the mode of reproduction of bahiagrass hybrids using cytoembryological analysis and molecular markers
Provedor de dados: Revista Brasileira de Zootecnia
Autores: Weiler,Roberto Luis; Dall’Agnol,Miguel; Simioni,Carine; Krycki,Karine Cristina; Dahmer,Nair; Guerra,Divanilde.
ABSTRACT The aim of this study was to determine the mode of reproduction of a hybrid progeny derived from intraspecific crosses of Paspalum notatum through cytoembryological analysis and use of RAPD (random amplification of polymorphic DNA) molecular markers. Cytoembryological analysis allowed identification of the mode of reproduction of 28 plants that were selected after agronomic productivity evaluations. Of these, 19 had embryo sac morphology compatible with an apomictic mode of reproduction and nine had embryo sac morphology compatible with a sexual mode of reproduction. Meanwhile, molecular marker analysis for 194 individuals showed 54 sexual and 140 apomictic plants; of the 28 plants analyzed by the two methods, ten results (35.7%) were in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apomixis; Molecular analysis; Paspalum notatum; Plant breeding; RAPD.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000300185

Morphological variation in Paspalum nicorae Parodi accessions, a promising forage
Provedor de dados: Scientia Agricola
Autores: Reis,Camila Aparecida de Oliveira dos; Dall'Agnol,Miguel; Nabinger,Carlos; Schifino-Wittmann,Maria Teresa.
Paspalum nicorae Parodi is a perennial, apomictic tetraploid forage species, native in the state of Rio Grande do Sul, Brazil, with grazing tolerance and adapted to sandy soils and moderate droughts. As a first step to future breeding, a morphological characterization regarding leaf hairiness, sheath, leaf and central venation color, growing habit, plant height, raceme number and length, and leaf length and width was performed in 53 accessions from Rio Grande do Sul that are part of a Paspalum species breeding program. 35.84% of the accessions had completely hairy leaves, 73.58% had green sheath, 54.71% whitish central venation, 50.94% decumbent habit. Leaf color was estimated by two methods, color chart and colorimeter. The accessions were classified as...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apomixis; Forage grass; Morphology; Plant breeding.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162010000200003

Cytogenetic data for Paspalum notatum Flügge accessions
Provedor de dados: Scientia Agricola
Autores: Dahmer,Nair; Schifino-Wittmann,Maria Teresa; Dall'Agnol,Miguel; Castro,Biane de.
Several species of the genus Paspalum L. are important forages, due their to quality, productivity and tolerance to environmental stresses. Chromosome numbers, meiotic configurations and pollen fertility were evaluated in a collection of 85 accessions of Paspalum notatum Flügge and in seven accessions of Pensacola (P. notatum var saurae). All P. notatum accessions were tetraploid, with 2n = 4x = 40, except one diploid accession, considered as an escape of Pensacola. All Pensacola plants had 2n = 2x = 20. Meiotic configurations at diakinesis and metaphase I varied among tetraploid accessions, from plants with only bivalents to plants with high frequency of quadrivalents. Pollen fertility varied from 82.5 to 95.9% among diploid accessions and from 72.4 to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apomixis; Chromosome numbers; Meiotic configurations; Plant breeding; Pollen fertility.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000400009

Interspecific hybrids between Paspalum plicatulum and P. oteroi: a key tool for forage breeding
Provedor de dados: Scientia Agricola
Autores: Novo,Patricia Elda; Valls,José Francisco Montenegro; Galdeano,Florencia; Honfi,Ana Isabel; Espinoza,Francisco; Quarin,Camilo Luis.
ABSTRACT Grama-tio-pedro (Paspalum oteroi Swallen) is a rare stoloniferous grass of the Plicatula group of Paspalum, well adapted to continuous grazing in areas subject to seasonal flooding in the Pantanal region, in central western Brazil. The species is a facultative apomictic (asexual reproduction by seed) tetraploid, sporadically cultivated on Pantanal farms, propagated either by cuttings or seed. Due to its potential for extensive cultivation and forage quality, Grama-tio-pedro appears as a candidate for genetic improvement within the Plicatula group through plant breeding. We used a colchicine-induced sexual autotetraploid genotype of P. plicatulum Michx. to obtain interspecific hybrids using the apomictic species, P. oteroi, as pollen donor. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: DNA content; Apomixis; Fertility; Meiosis; Reproductive mode.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162016000400356

Meiotic behavior in apomictic Brachiaria ruziziensis × B. brizantha (Poaceae) progenies
Provedor de dados: Scientia Agricola
Autores: Fuzinatto,Veridiana Aparecida; Pagliarini,Maria Suely; Valle,Cacilda Borges do.
Hybrids combining desirable traits from divergent parents are the main objective of some Brachiaria (Syn. Urochloa P. Beauv.) breeding programs. There is great interest in the development of apomictic hybrid cultivars that combine desirable genes such as resistance to spittlebugs, high nutritive value, and tolerance to acid soils. Microsporogenesis of six apomictic progenies resulting from a tetraploid (2n = 4x = 36) cross between B. ruziziensis × B. brizantha was evaluated under light microscopy. Genetic recombination, ensured by multivalent chromosome association and crossing-over at prophase occurred in low frequency among progenies, and in one, recombination was almost nonexistent. The percentage of meiocytes with meiotic abnormalities among progenies...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brachiaria; Microsporogenesis; Breeding; Pastures; Apomixis.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162012000600006

Self-sterility in the hexaploid Handroanthus serratifolius (Bignoniaceae), the national flower of Brazil
Provedor de dados: Acta Botanica Brasilica
Autores: Alves,Mariana Ferreira; Duarte,Mariana Oliveira; Oliveira,Paulo Eugênio; Sampaio,Diana Salles.
Polyploidization is common among angiosperms and might induce typically allogamous plants to become autogamous (self-compatible, relying on sexual self-fertilization) or apomictic (achieving asexual reproduction through seeds). This work aimed to determine whether neopolyploidy leads to the breakdown of the self-incompatibility system in the hexaploid non-apomictic species Handroanthus serratifolius (Vahl) S. Grose, through analyses of its floral biology, pollination biology and breeding system. Although anthesis lasted for three days, increasing the overall floral display, receptivity decreased as of the second day. Centridini and Euglossini bees were the main pollinators, and low nectar availability (1.95 ± 1.91 µl/flower) might have obliged them to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apomixis; Late-acting self-incompatibility; Monoembryony; Polyploidy; Tabebuia serratifolia.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062013000400010

Polyembryony in angiospermous trees of the Brazilian Cerrado and Caatinga vegetation
Provedor de dados: Acta Botanica Brasilica
Autores: Salomão,Antonieta N.; Allem,Antonio C.
The occurrence of polyembryony was investigated in 75 woody species of the Cerrado in central Brazil and the xerophilous Caatinga vegetation in northeastern Brazil. Fourteen species showed polyembryony, a type of anomalous angiospermous reproduction. Polyembryony is reported for the first time for nine genera, Astronium, Byrsonima, Cariniana, Copaifera, Hancornia, Magonia, Myracrodruon, Tabebuia, and Tapirira. The positive correlation found between polyembryony, sexual reproduction, and apomictic processes suggests that a number of angiospermous species may make regular use of multiple breeding systems.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Angiosperms; Agamospermy; Apomixis; Polyembryony; Brazilian neotropics.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062001000300007

VARIABILIDAD FENOTÍPICA Y GENÉTICA EN POBLACIONES DE PASTO MIEL (Paspalum dilatatum Poir.)
Provedor de dados: Agricultura Técnica
Autores: García,María Victoria; Arturi,Miguel J.; Ansín,Oscar E.
El pasto miel (Paspalum dilatatum Poir.), es una gramínea perenne de ciclo estival y alto valor forrajero. El objetivo de este trabajo fue obtener estimaciones de la variabilidad fenotípica y genética entre y dentro de poblaciones del biotipo dilatatum. Se tomaron muestras extrayendo plantas completas en tres sitios del sector norte de la Depresión del Salado (La Plata, Magdalena y Pereyra Iraola) en la provincia de Buenos Aires, Argentina. El material, mantenido en envases plásticos, fue utilizado para medir seis caracteres: número de nudos por macolla (NNM), largo y ancho de lámina de la hoja bandera (LLHB y ALHB), largo del raquis de la espiga basal (LREB), número de espigas por panoja (NEP), y número de semillas por espiga basal (NSEB). De las 18...
Tipo: Journal article
Palavras-chave: Poblaciones naturales; Plantas forrajeras nativas; Grado de determinación genética; Apomixis.
Ano: 2002
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0365-28072002000200006

Microsporogenesis in tetraploid accessions of Brachiaria nigropedata (Ficalho &amp;amp; Hiern) Stapf (Gramineae)
Provedor de dados: Biocell
Autores: Sayuri Utsunomiya,Karina; Suely Paglirini,Maria; Borges do Valle,Cacilda.
The genus Brachiaria (Trin.) Griseb. has achieved considerable importance to cattle production systems, as a result of the good production and adaptation of a few cultivars to poor and acid soils of the Brazilian savannas. Many of its species and accessions are polyploid and apomictic, which limits direct hybridization. To assist the breeding program, cytogenetic characterization has been undertaken on the accessions of Brachiaria collection at the Embrapa Beef Cattle Research Center. In this study, chromosome number and meiotic behavior are reported for the Brachiaria nigropedata (Ficalho &amp;amp; Hiern) Stapf collection. The 20 available accessions are tetraploid (2n = 4x = 36). Chromosomes paired preferentially as bivalents, but quadrivalents were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brachiaria nigropedata; Chromosome number; Meiosis; Polyploidy; Apomixis; Grasses.
Ano: 2005
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452005000300007

Forage characters of different Paspalum species in Rio Grande do Sul: a meta-analysis
Provedor de dados: Ciência Rural
Autores: Graminho,Larissa Arnhold; Dall’Agnol,Miguel; Pötter,Luciana; Lopes,Rodrigo Ramos; Simioni,Carine; Weiler,Roberto Luís.
ABSTRACT: The objective of this study was to evaluate, through meta-analysis, the forage characteristics of various species of the genus Paspalum and to use them to select the best ecotypes that can be used in artificial hybridization as parents and hybrids for pasture production and natural pasture recovery systems. Data were obtained from studies conducted by the Department of Forage Plants and Agrometeorology of the Universidade Federal do Rio Grande do Sul. Database comprised tests conducted with ecotypes and/or hybrids of Paspalum spp. in plots for evaluating total dry mass production, leaf dry mass production, and stem dry mass production by means of cuts. Total dry mass production, which included leaves and stems, differed between the ecotypes and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apomixis; Hybridization; Plant breeding; Natural pasture; Variability.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000700651

Forage performance of  Paspalum hybrids from an interspecific cross
Provedor de dados: Ciência Rural
Autores: Motta,Eder Alexandre Minski da; Dall'Agnol,Miguel; Nascimento,Felipe Link; Pereira,Emerson André; Machado,Juliana Medianeira; Barbosa,Marlon Risso; Simioni,Carine; Ferreira,Priscila Becker.
ABSTRACT: The goal of this study was to assess the variability of Paspalum plicatulum x  P. guenoarum interspecific hybrids in terms of agronomic performance and their tolerance to cold conditions, as well as to estimate the correlation of different phenotypic characters associated with forage production. Twenty hybrids plants were used, besides one access P. guenoarum , one of P. plicatulum and the cultivar 'Pensacola' ( P. notatum ). Assessments were performed on individual plants, in a completely randomized design with five repetitions. Paspalum genotypes presented variability in total dry matter, leaf dry mass, leaf: stem ratio, and tolerance to cold. We suggest selection of the hybrids 08Q01 and 08Q44 for new stages within a forage improvement...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apomixis; Native grasses; Hybridization.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000601025