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Diversidad morfológica de accesiones de papayo (Carica papaya L.) provenientes de tres estados de México. Colegio de Postgraduados
Hernández Salinas, Gregorio.
Se realizaron dos estudios con accesiones de Carica papaya L. provenientes de Baja California Sur, Veracruz y Campeche, México. En el primero, mediante descriptores morfológicos para papaya se cuantificó la diversidad morfológica en 20 accesiones de papayo en plantas femeninas (F) y hermafroditas (Hf), evaluando 25 características cuantitativas y 16 cualitativas. En base al análisis de componentes principales, las características cuantitativas de mayor contribución a la variabilidad total fueron: diámetro, longitud, diámetro de cavidad central, grosor de la pulpa, contenido de sólidos solubles totales, longitud del pedúnculo, color (valor a* y L*-CIELAB) del fruto, altura a la primera flor y número de nudos. Las características cualitativas de mayor...
Palavras-chave: Carica papaya L.; Brix; Calidad de fruto; Morfología de la semilla; Fruit quality; Seed morphology; Agroecosistemas Tropicales; Maestría.
Ano: 2013 URL: http://hdl.handle.net/10521/1997
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Morphology and germination of Acmella oleracea L. R. Jansen under different temperatures and photoperiods Rev. Ciênc. Agron.
Sarmento,Erivanessa Costa Sousa; Pereira,Kleane Targino Oliveira; Oliveira,Fernando Sarmento de; Leal,Caio César Pereira; Torres,Salvador Barros; Dutra,Alek Sandro.
ABSTRACT The objective was to evaluate the physical characteristics and physiological behavior of A. oleracea seeds during imbibition and germination, under different temperatures and photoperiods, as well as to determine the duration of the germination test. For this, biometric parameters (length, width and thickness) were measured in 100 seeds and thousand-seed weight was determined. In addition, the external structures of seeds and seedlings were described and the imbibition curve was monitored. Subsequently, the germination test was conducted at temperatures of 20, 25, 30, 35, 20-30 and 25-35 ºC, under constant and alternating light and dark photoperiods (12 h), arranged in 6 x 3 factorial scheme, with four replicates of 50 seeds. Seeds were sown in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Asteraceae; Jambu; Imbibition; Seed morphology; Seed analysis.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902019000400660
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Morphology of seeds and seedlings of four species of Vigna Savi (Leguminosae, Phaseolinae) Acta Botanica
Ojeda,Fabiana Soledad; Hoc,Patricia Susana; Amela García,María Teresa.
Four neotropical species of Vigna Savi (Leguminosae, Phaseolinae) have potential value as forage crops or ornamentals and could be cultivated in tropical or subtropical areas, even on floodplains. In order to obtain useful data for their culture and taxonomy, the seed morphology, germination pattern (hypogeal or epigeal) and seedling development were studied. The studied species belong to different sections of the genus: V. adenantha (G.F.W. Meyer) Maréchal, Mascherpa & Stainier (Sect. Leptospron); V. candida (Vell.) Maréchal, Mascherpa & Stainier (Sect. Sigmoidotropis); V. caracalla (L.) Verdc. (Sect. Caracallae) and V. luteola (Jacq.) Benth. (Sect. Vigna). The seeds were collected during fieldwork conducted in northwestern and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Vigna; Seed morphology; Germination; Seedlings; Argentina.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062013000300004
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Seed morphology and post-seminal development of Tillandsia L. (Bromeliaceae) from the "Campos Gerais", Paraná, Southern Brazil BABT
Scatena,Vera Lucia; Segecin,Simone; Coan,Alessandra Ike.
This work studied the morphology and post-seminal development of seeds of Tillandsia gardneri Lindl., T. streptocarpa Baker, and T. stricta Sol. ex Sims (Bromeliaceae) from the "Campos Gerais", State of Paraná, Southern Brazil. The seeds (ca. 2.0 mm long) presented plumose appendages at their micropylar end, an important structure in the taxonomy of the family since it represented an elaborate apparatus allowing effective wind-dispersal. Seeds germinated after circa twenty days. The haustorial cotyledon, responsible for the seedling nutrition, appeared first during the germination process. No cataphyll or primary roots developed. A small tank came along in the seedling, formed by the base of the sheath of the first leaf, which overlapped that of the second...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Tillandsia; Seed morphology; Post-seminal development.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000700012
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Taxonomic relationships in some Vicia species from Egypt, based on seed morphology and SDS-PAGE of seed proteins - doi: 10.4025/actascibiolsci.v35i4.19345 Biological Sciences
Abdel Khalik, Kadry Nabeh; Sohag University, Faculty of Science; Al Gohary, Iman Hussien.
The seed morphology and seed proteins of 11 Vicia taxa from Egypt were studied. Macro- and micro-morphological characters, including seed shape, color, size, hilum shape and seed sculpture were described and analyzed. The secondary sculpture of the cell wall varies from papillose in nearly all Vicia species to lophate in V. hirsuta. Further, the seed proteins of studied taxa were investigated by SDS-PAGE and 39 different bands were scored. The similarity analysis based on the SDS-PAGE profile and seed morphology was found to be a useful characteristic for the discrimination of Vicia species both on the subgeneric and the sectional levels. The present study did not acknowledge V. tetrasperma and V. hirsuta as subgenus Ervum. As a result, division of Vicia...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Taxonomy Taxonomy; Vicia; Seed proteins; Seed morphology; Sections taxonomy Vicia.
Ano: 2013 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/19345
Registros recuperados: 5
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