&lt;I&gt;Rubus sengorensis&lt;/I&gt; (Rosaceae): A New Record to India from Arunachal Pradesh

Gupta, Chandani

doi:10.20324/nelumbo/v57/2015/87087

Cited by 2 publications

(1 citation statement)

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“…The length of the stamens in the flowers of the biennial and repeated fruiting cultivars examined in the present study ranged from 3.5 ('Laszka') to 4.8 mm ('Glen Ample') and was similar to the values (3-6.9 mm) reported in R. clementis, R. ideaus 'Polka', R. moorei, and R. nebulosus [75,77,79]. At the same time, these values were higher than the range of 1.0-3.01 mm measured in the flowers of R. chrysophyllus, R. ellipticus, R. fraxinifolius, R. lineatus, R. macilentus, R. moluccanus, R. rosifolius, R. royenii 'Hispidus', and R. sengorensis [77,[80][81][82]. However, they were lower than the range of 4.8-12 mm reported for Rubus sp., R. benguetensis, R. cordiformis, R. diclinis, R. laconensis, R. lineatus, R. luzoniensis, R. megacarpus, R. pyrifolius, R. saxatilis 'Gazda', R. sorsogonensis, and R. sundaicus [76,77,82,83] (Table 6).…”

Section: Number and Size Of Stamensmentioning

confidence: 99%

Structure of Anther Epidermis and Endothecium, Production of Pollen, and Content of Selected Nutrients in Pollen Grains from Six Rubus idaeus L. Cultivars

Kostryco¹,

Chwil²

2021

Agronomy

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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 mass, the content of elements, protein, and fat, as well as the composition of amino acids and fatty acids in the pollen of six R. idaeus cultivars were compared. In terms of pollen production, the cultivars ranked as follows: ’Pokusa’ < ‘Polana’ < ‘Glen Ample’ < ‘Polka’ < ‘Radziejowa’ < ‘Laszka’. The protein content (26–31%) in the pollen indicates its good quality and high attractiveness. Exogenous amino acids, including those with dietary importance, constituted a substantial proportion (33–39%). The content of MUFAs and PUFAs was 32–47% and 3.7–9.1%, respectively. The presence of elements that determine the nutritional value and proper development of pollen was detected in the mineral composition of the exine. The data on the epidermis and endothecium structure provide new information about the micromorphology, anatomy, ultrastructure of and generative organs and auxiliary criteria in the taxonomy of related species.

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