Two vigna species native to argentina with ornamental potential

Vigna candida (Vell.) Maréchal, Mascherpa and Stainier and V. adenantha (G.F.W. Meyer) Maréchal, Mascherpa and Stainier have potential as ornamentals and could be used as forage crops in warm areas. They are scandent, stolonate and pluriannual. In both species the flowering period begins in springti...

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Autores principales: Hoc, Patricia Susana, Ojeda, Fabiana Soledad
Publicado: 2013
Materias:
Candida
Centris
Hymenoptera
Vigna
Vigna adenantha
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_05677572_v1000_n_p83_Hoc
http://hdl.handle.net/20.500.12110/paper_05677572_v1000_n_p83_Hoc
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_05677572_v1000_n_p83_Hoc
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spelling paper:paper_05677572_v1000_n_p83_Hoc2023-06-08T15:42:35Z Two vigna species native to argentina with ornamental potential Hoc, Patricia Susana Ojeda, Fabiana Soledad Candida Centris Hymenoptera Vigna Vigna adenantha Vigna candida (Vell.) Maréchal, Mascherpa and Stainier and V. adenantha (G.F.W. Meyer) Maréchal, Mascherpa and Stainier have potential as ornamentals and could be used as forage crops in warm areas. They are scandent, stolonate and pluriannual. In both species the flowering period begins in springtime and last until autumn. The flowers are flag blossoms, disposed in 5-10-flowered racemes of 10 cm long. The standard and the keel are white, the wings are white with violet nectar guides; a variation in the color pattern of these petals occur between the species. During the anthesis, that lasts 1-2 days, an anular nectary that surround the ovary secrete the nectar offered as reward. Legitimate flower visitors are species of Xylocopa, Centris and Bombus (Hymenoptera), because of only these individuals can trigger the system of pollen transfer; also, nectar and pollen thieves or robbers were detected but did not affect the reproductive success. In V. candida, aroma is also emitted as other secondary attractant. Experiments of controlled pollinations were carried out in order to know the reproductive system of each species. V. adenantha is self-compatible but the reproductive success reach the 100% when pollinators visit the flowers, oppositely, in V. candida, which is self-incompatible, if pollinators do not work, fruits and seeds cannot be produced. Because of the growing pattern, phenology, the beautiful and conspicuous flowers, and the nitrifying capacity, both species should be appreciated as ornamentals in warm or temperate areas, even in flooded land. Fil:Hoc, P.S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Ojeda, F.S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2013 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_05677572_v1000_n_p83_Hoc http://hdl.handle.net/20.500.12110/paper_05677572_v1000_n_p83_Hoc
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Candida
Centris
Hymenoptera
Vigna
Vigna adenantha
spellingShingle Candida
Centris
Hymenoptera
Vigna
Vigna adenantha
Hoc, Patricia Susana
Ojeda, Fabiana Soledad
Two vigna species native to argentina with ornamental potential
topic_facet Candida
Centris
Hymenoptera
Vigna
Vigna adenantha
description Vigna candida (Vell.) Maréchal, Mascherpa and Stainier and V. adenantha (G.F.W. Meyer) Maréchal, Mascherpa and Stainier have potential as ornamentals and could be used as forage crops in warm areas. They are scandent, stolonate and pluriannual. In both species the flowering period begins in springtime and last until autumn. The flowers are flag blossoms, disposed in 5-10-flowered racemes of 10 cm long. The standard and the keel are white, the wings are white with violet nectar guides; a variation in the color pattern of these petals occur between the species. During the anthesis, that lasts 1-2 days, an anular nectary that surround the ovary secrete the nectar offered as reward. Legitimate flower visitors are species of Xylocopa, Centris and Bombus (Hymenoptera), because of only these individuals can trigger the system of pollen transfer; also, nectar and pollen thieves or robbers were detected but did not affect the reproductive success. In V. candida, aroma is also emitted as other secondary attractant. Experiments of controlled pollinations were carried out in order to know the reproductive system of each species. V. adenantha is self-compatible but the reproductive success reach the 100% when pollinators visit the flowers, oppositely, in V. candida, which is self-incompatible, if pollinators do not work, fruits and seeds cannot be produced. Because of the growing pattern, phenology, the beautiful and conspicuous flowers, and the nitrifying capacity, both species should be appreciated as ornamentals in warm or temperate areas, even in flooded land.
author Hoc, Patricia Susana
Ojeda, Fabiana Soledad
author_facet Hoc, Patricia Susana
Ojeda, Fabiana Soledad
author_sort Hoc, Patricia Susana
title Two vigna species native to argentina with ornamental potential
title_short Two vigna species native to argentina with ornamental potential
title_full Two vigna species native to argentina with ornamental potential
title_fullStr Two vigna species native to argentina with ornamental potential
title_full_unstemmed Two vigna species native to argentina with ornamental potential
title_sort two vigna species native to argentina with ornamental potential
publishDate 2013
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_05677572_v1000_n_p83_Hoc
http://hdl.handle.net/20.500.12110/paper_05677572_v1000_n_p83_Hoc
work_keys_str_mv AT hocpatriciasusana twovignaspeciesnativetoargentinawithornamentalpotential
AT ojedafabianasoledad twovignaspeciesnativetoargentinawithornamentalpotential
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