Consulta: subjectFacets:"Phenotypic diversity"
Registros recuperados: 6
Data/hora: 09/06/2024 03:52:06

Diversidad morfológica y variación isoenzimática de maíces nativos del altiplano centro-oriente del estado de Puebla.
Provedor de dados: Depósito Institucional Abierto de Documentos Digitales del Colegio de Postgraduados (COLPOS DIGITAL )
Autores: Hortelano Santa Rosa, René.
La presente investigación tuvo por objetivo cuantificar y analizar la diversidad genética (a nivel morfológico e isoenzimático) presente actualmente entre poblaciones nativas de maíz (Zea mays L.), cultivadas en la región Centro-Oriente del Altiplano del estado de Puebla, así como establecer las relaciones de similitud que aquellas presentan con las razas reportadas para el área. El trabajo se desarrolló en dos etapas: la primera consistió en la evaluación, en tres localidades, de 134 poblaciones nativas, seis accesiones „tipo‟ de las razas Cónico, Cónico Norteño, Palomero Toluqueño, Chalqueño y sus variantes Chalqueño Crema y Chalqueño Palomo y cuatro variedades comerciales recomendadas para la zona. El diseño empleado fue un látice simple 12x12. Durante...
Palavras-chave: Zea mays L.; Isoenzimas; Poblaciones nativas; Diversidad fenotípica; Valles Altos; Raza Chalqueño; Isozymes; Native populations; Phenotypic diversity; Highlands; Chalqueño race; Doctorado; Genética.
Ano: 2010
URL: http://hdl.handle.net/10521/183

Diversidad morfológica y variación isoenzimática de maíces nativos del altiplano centro-oriente del estado de Puebla.
Provedor de dados: Depósito Institucional Abierto de Documentos Digitales del Colegio de Postgraduados (COLPOS DIGITAL )
Autores: Hortelano Santa Rosa, René.
La presente investigación tuvo por objetivo cuantificar y analizar la diversidad genética (a nivel morfológico e isoenzimático) presente actualmente entre poblaciones nativas de maíz (Zea mays L.), cultivadas en la región Centro-Oriente del Altiplano del estado de Puebla, así como establecer las relaciones de similitud que aquellas presentan con las razas reportadas para el área. El trabajo se desarrolló en dos etapas: la primera consistió en la evaluación, en tres localidades, de 134 poblaciones nativas, seis accesiones „tipo‟ de las razas Cónico, Cónico Norteño, Palomero Toluqueño, Chalqueño y sus variantes Chalqueño Crema y Chalqueño Palomo y cuatro variedades comerciales recomendadas para la zona. El diseño empleado fue un látice simple 12x12. Durante...
Palavras-chave: Zea mays L.; Isoenzimas; Poblaciones nativas; Diversidad fenotípica; Valles Altos; Raza Chalqueño; Isozymes; Native populations; Phenotypic diversity; Highlands; Chalqueño race; Doctorado; Genética.
Ano: 2010
URL: http://hdl.handle.net/10521/183

Variation of plant and fruit traits in native Mexican costeño pepper
Provedor de dados: Horticultura Brasileira
Autores: Santiago-Luna,Eric G; Carrillo-Rodríguez,José C; Chávez-Servia,José L; Perales-Segovia,Catarino; Heredia-Garcia,Elena.
ABSTRACT In a collection of costeño peppers conserved by indigenous producers from the municipalities of Santa Maria Tonameca and Santo Domingo de Morelos, Oaxaca, Mexico, a description and classification of agromorphological variation was undertaken by characterization of 46 populations in a greenhouse distributed under complete randomized block design with three replicates. Days to first flowering, plant and fruit traits and yield per plant were evaluated. Significant differences were detected for all traits except for plant height at 120 days after planting. In a principal component analysis, the variables of green and dry weight of 15 fruits, average fruit weight, number of fruits and yield per plant were the characteristics with major descriptive...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Capsicum annuum; Phenotypic diversity; Plant genetic resources; Characterization; Multivariate analysis.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362018000300399

Diversity and efficiency of bradyrhizobium strains isolated from soil samples collected from around sesbania virgata roots using cowpea as trap species
Provedor de dados: Revista Brasileira de Ciência do Solo
Autores: Florentino,Ligiane Aparecida; Sousa,Pedro Martins de; Silva,Jacqueline Savana; Silva,Karina Barroso; Moreira,Fatima Maria de Souza.
The genetic diversity of ten Bradyrhizobium strains was evaluated for tolerance to high temperatures, to different salinity levels and for the efficiency of symbiosis with cowpea plants (Vigna unguiculata (L.) Walp.). Eight of these strains were isolated from nodules that appeared on cowpea after inoculation with suspensions of soil sampled from around the root system of Sesbania virgata (wand riverhemp) in ecosystems of South Minas Gerais. The other two strains used in our analyses as references, were from the Amazon and are currently recommended as cowpea inoculants. Genetic diversity was analyzed by amplifying repetitive DNA elements with the BOX primer, revealing high genetic diversity with each strain presenting a unique band profile. Leonard jar...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological N2 fixation; Selection; Inoculant strains; Phenotypic diversity; Genotypic diversity.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832010000400011

Phenology and morphological diversity of sweet potato (Ipomoea batatas) landraces of the Vale do Ribeira
Provedor de dados: Scientia Agricola
Autores: Veasey,Elizabeth Ann; Silva,Jurema Rosa de Queiroz; Rosa,Mariana Silva; Borges,Aline; Bressan,Eduardo de Andrade; Peroni,Nivaldo.
The phenotypic diversity of sweet potato (Ipomoea batatas) landraces was assessed using morphological traits, verifying how this diversity is distributed among the households and settlements of the Vale do Ribeira, Brazil. A total of 74 accessions, involving 53 landraces, collected from 30 households distributed among 18 settlements that practice traditional agriculture in the municipalities of Iguape, Ilha Comprida, and Cananeia, as well as four commercial varieties acquired in markets of Iguape and Piracicaba, were evaluated under an ex situ experimental condition in Piracicaba, SP, Brazil. Nine phenological and floral descriptors, nine morphological vegetative aerial descriptors and five storage root traits were recorded. The 14 aerial vegetative and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Local varieties; Morphology; Phenotypic diversity; Traditional agriculture; Variability.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162007000400013

Phenotypic diversity of pea (Pisum sativum L.) varieties and the polyphenols, flavonoids, and antioxidant activity of their seeds
Provedor de dados: Ciência Rural
Autores: Zhao,Tianyao; Su,Wenjin; Qin,Yang; Wang,Liyun; Kang,Yufan.
ABSTRACT: Pea (Pisum sativum L.) is the fourth leading legume crop in the world, and its demand is increasing. In this study, the morphological characteristics (seed shape, seed surface, seed coat color, hilum color, cotyledon color, 100-seed weight and color values), total phenolic content (TPC), total flavonoid content (TFC), 2,2’-azinobis-(3-ethylbenzthiazoline-6-sulphonate) (ABTS) free radical scavenging capacity and ferric reducing antioxidant power (FRAP) of 75 pea cultivars were investigated. Results showed rich genetic diversity and a wide range of phenolic contents and antioxidant activities. Sixteen varieties enriched with phenolic contents and high antioxidant activities were screened out. A significant correlation was reported among color...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pea; Phenotypic diversity; Flavonoid; Antioxidant activity.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000500402