Effect of Nectar Composition on Bee Attraction for Onion Seed Production

Onion is the second most cultivated vegetable crop in the world. Two types of onion varieties are usually grown around the world; open pollinated (OP) and first generation (F1) hybrids. Honey bees are the main pollinators of onion seed production, but owing to low attractiveness of flowers, pollinat...

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Main Authors: Soto Vargas, Verónica Carolina, Silva, Maria Fernanda, Galmarini, Claudio Romulo
Format: Capítulo de libro
Language:Inglés
Published: Nova Science Publishers 2021
Subjects:
Online Access:http://hdl.handle.net/20.500.12123/9249
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author Soto Vargas, Verónica Carolina
Silva, Maria Fernanda
Galmarini, Claudio Romulo
author_browse Galmarini, Claudio Romulo
Silva, Maria Fernanda
Soto Vargas, Verónica Carolina
author_facet Soto Vargas, Verónica Carolina
Silva, Maria Fernanda
Galmarini, Claudio Romulo
author_sort Soto Vargas, Verónica Carolina
collection INTA Digital
description Onion is the second most cultivated vegetable crop in the world. Two types of onion varieties are usually grown around the world; open pollinated (OP) and first generation (F1) hybrids. Honey bees are the main pollinators of onion seed production, but owing to low attractiveness of flowers, pollination is often inadequate. Pollination problems result in low seed yields. Field observations indicate that F1 hybrid seed yields are much lower than open-pollinated varieties seed yields, with a decrease of up to 60%. Nectar is the most important floral reward offered by plants. Floral nectar composition has been studied as the potential cause of bee preferences in many species, among them onion. Nectar usually does not repel bees, but some nectar may be less attractive than nectar of competing flowers. Honeybees have distaste for onion flowers and avoid visiting them. Frequently, onion nectar potassium concentration and nectar sucrose concentration have been mentioned as potential causes of bee unattractiveness. Also, minor components of nectar such as phenols, amino acids, proteins, organosulfur compounds and alkaloids might directly affect bee foraging. There are differences in the chemical composition of nectar and floral morphology between open pollinated and F1 Hybrids and also within F1 Hybrids. These differences are correlated with the number of visits and seed yield. Therefore, it would be possible to select indirectly the most promising seed production lines analyzing nectar or floral morphological characters.
format Capítulo de libro
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institution Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina)
language Inglés
publishDate 2021
publishDateRange 2021
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spelling INTA92492021-05-03T14:28:19Z Effect of Nectar Composition on Bee Attraction for Onion Seed Production Soto Vargas, Verónica Carolina Silva, Maria Fernanda Galmarini, Claudio Romulo Cebolla Polinización Híbridos Néctar Producción de Semillas Onions Pollination Hybrids Nectar Seed Production Onion is the second most cultivated vegetable crop in the world. Two types of onion varieties are usually grown around the world; open pollinated (OP) and first generation (F1) hybrids. Honey bees are the main pollinators of onion seed production, but owing to low attractiveness of flowers, pollination is often inadequate. Pollination problems result in low seed yields. Field observations indicate that F1 hybrid seed yields are much lower than open-pollinated varieties seed yields, with a decrease of up to 60%. Nectar is the most important floral reward offered by plants. Floral nectar composition has been studied as the potential cause of bee preferences in many species, among them onion. Nectar usually does not repel bees, but some nectar may be less attractive than nectar of competing flowers. Honeybees have distaste for onion flowers and avoid visiting them. Frequently, onion nectar potassium concentration and nectar sucrose concentration have been mentioned as potential causes of bee unattractiveness. Also, minor components of nectar such as phenols, amino acids, proteins, organosulfur compounds and alkaloids might directly affect bee foraging. There are differences in the chemical composition of nectar and floral morphology between open pollinated and F1 Hybrids and also within F1 Hybrids. These differences are correlated with the number of visits and seed yield. Therefore, it would be possible to select indirectly the most promising seed production lines analyzing nectar or floral morphological characters. EEA La Consulta Fil: Soto Vargas, Verónica Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Biología Agrícola de Mendoza; Argentina Fil: Soto Vargas, Verónica Carolina. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Instituto de Biología Agrícola de Mendoza; Argentina Fil: Silva, Maria Fernanda. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Biología Agrícola de Mendoza; Argentina Fil: Silva, Maria Fernanda. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Instituto de Biología Agrícola de Mendoza; Argentina Fil: Galmarini, Claudio Romulo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria La Consulta; Argentina Fil: Galmarini, Claudio Romulo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Galmarini, Claudio Romulo. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias; Argentina 2021-05-03T14:24:29Z 2021-05-03T14:24:29Z 2015-02 info:ar-repo/semantics/parte de libro info:eu-repo/semantics/bookPart info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/9249 978-1-63463-650-6 eng info:eu-repo/semantics/restrictedAccess application/pdf Nova Science Publishers Nectar: Production, Chemical Composition and Benefits to Animals and Plants / editor : Robin L. Peck. New York : Nova Science Publishers, 2015. p. 60-78
spellingShingle Cebolla
Polinización
Híbridos
Néctar
Producción de Semillas
Onions
Pollination
Hybrids
Nectar
Seed Production
Soto Vargas, Verónica Carolina
Silva, Maria Fernanda
Galmarini, Claudio Romulo
Effect of Nectar Composition on Bee Attraction for Onion Seed Production
title Effect of Nectar Composition on Bee Attraction for Onion Seed Production
title_full Effect of Nectar Composition on Bee Attraction for Onion Seed Production
title_fullStr Effect of Nectar Composition on Bee Attraction for Onion Seed Production
title_full_unstemmed Effect of Nectar Composition on Bee Attraction for Onion Seed Production
title_short Effect of Nectar Composition on Bee Attraction for Onion Seed Production
title_sort effect of nectar composition on bee attraction for onion seed production
topic Cebolla
Polinización
Híbridos
Néctar
Producción de Semillas
Onions
Pollination
Hybrids
Nectar
Seed Production
url http://hdl.handle.net/20.500.12123/9249
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