2021
DOI: 10.3390/agronomy11091723
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Structure of Anther Epidermis and Endothecium, Production of Pollen, and Content of Selected Nutrients in Pollen Grains from Six Rubus idaeus L. Cultivars

Abstract: Poland is the largest European Union producer of Rubus idaeus. This species provides insects with nectar and pollen from June to September. The rationale behind the present research is the increasing commercial production and the use of food attractants for pollinators increasing fruit yields. The intensive search for phytochemicals applicable in industry and phytotherapy together with the unavailability of data on anther epidermis and endothecium structure justify undertaking these investigations. The pollen … Show more

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Cited by 6 publications
(6 citation statements)
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“…Another interesting feature concerned endothecium-a tissue that plays a crucial role in anther dehiscence and the release of pollen grains [57]. Lignification of endothecium walls is accompanied by the disappearance of the middle layer and tapetal cells as well as the formation of characteristic thickening [58], which was clearly observable in our study in both tested species. The endothecium cells were substantially larger than the epidermal cells.…”
Section: Discussionsupporting
confidence: 59%
“…Another interesting feature concerned endothecium-a tissue that plays a crucial role in anther dehiscence and the release of pollen grains [57]. Lignification of endothecium walls is accompanied by the disappearance of the middle layer and tapetal cells as well as the formation of characteristic thickening [58], which was clearly observable in our study in both tested species. The endothecium cells were substantially larger than the epidermal cells.…”
Section: Discussionsupporting
confidence: 59%
“…There are also no data on nectar abundance and nectar transport processes at the cellular level in common raspberry varieties cultivated in commercial production in Poland, i.e., 'Glen Ample', 'Laszka', 'Radziejowa', 'Pokusa', 'Polana', and 'Polka'. The present study is a continuation of previous research [16,36].…”
Section: Introductionsupporting
confidence: 58%
“…The constantly increasing area of R. idaeus cultivation in Poland, Europe, and the world and the abundant and long flowering (from May to August) of the plants offers a continuous nectar and pollen supply [16][17][18]. Data on the R. idaeus pollen reward were presented by Kostryco et al [19] and Kostryco and Chwil [20]. Nectar secretion increases the frequency of cross pollination in raspberry plantations, contributing to higher yields and quality of Rubus fruits [21][22][23][24].…”
Section: Nectar Secretion and Its Impact On Pollinationmentioning
confidence: 99%
“…Overall, pollination of crops by honeybees, wild bees, and flies generates revenues of around $577 billion annually and is an important factor in agricultural economy [28]. The increasing commercial R. idaeus production ensures an adequate pollen and nectar supply to pollinators [20,29,30]. Poland is one of the main raspberry fruit producers in the European Union in terms of acreage, and the share of global production in the world has been estimated at 13% with a sale value of approximately 930,100 EUR (euro) in 2019 [11,31].…”
Section: Nectar Secretion and Its Impact On Pollinationmentioning
confidence: 99%
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