Results 21 to 30 of about 23,420 (258)

Comparative pollen morphological analysis in the subgenera Passiflora and Decaloba

open access: yesAnais da Academia Brasileira de Ciências, 2017
The genus Passiflora is the most diversified of the Passifloraceae, and its palynology presents wide morphological variability. The objective of the study was to evaluate the pollen morphology of 18 Passiflora species in order to identify informative ...
TALIANE L. SOARES   +4 more
doaj   +1 more source

Palynological study on some species of Convolvulaceae and its taxonomic significance [PDF]

open access: yesTaeckholmia, 2005
Pollen morphology of 34 species representing eight genera ofConvolvulaceae was investigated using light and scanning electronmicroscopy. Three pollen types were recognized viz.
Ahmed Osman, Kadry Abdel khalik
doaj   +1 more source

Study of 15 Varieties of Herbaceous Peony Pollen Submicroscopic Morphology and Phylogenetic Relationships

open access: yesHorticulturae, 2022
Paeonia lactiflora Pall. is widely used in medicine, garden applications, and as a potted ornamental. Cultivated varieties of paeonifloras suitable for cut flowers are urgently needed. In this study, the pollen morphology of P. lactiflora was studied and
Dongliang Zhang   +8 more
doaj   +1 more source

Palynology of family Convolvulaceae in Thailand [PDF]

open access: yesResearch & Knowledge, 2018
The pollen morphology of 45 taxa, seven genera of Convolvulaceae is based on observations from a light microscope, but the features seen in the scanning electron microscope are also mentioned where appropriate.
Surapon Saensouk, Piyaporn Saensouk
doaj   +1 more source

Rose Pollen Management Methods to Improve Productivity

open access: yesAgronomy, 2022
Roses are one of the most highly produced and purchased ornamental plants worldwide. Procurement and preservation of pollen is essential for the production of diverse rose varieties.
Na-Ra Jeong, Ki-Young Park
doaj   +1 more source

Morphology and viability of pollen grains from passion fruit species (Passiflora spp.)

open access: yesActa Botânica Brasílica, 2013
The characterization and viability of pollen grains are useful tools to guide crosses in breeding programs. The objective of this study was to describe the morphological patterns and viability of pollen grains from five accessions of Passiflora edulis f.
Taliane Leila Soares   +4 more
doaj   +1 more source

Pollen Morphology and Ultrastructure [PDF]

open access: yes, 2018
AbstractThe study of pollen should encompass all structural and ornamental aspects of the grain. Pollen morphology is studied using LM and SEM and is important to visualize the general features of a pollen grain, including, e.g., symmetry, shape, size, aperture number and location, as well as ornamentation.
Halbritter, Heidemarie   +8 more
openaire   +2 more sources

Influence factors on airborne pollen dispersal in a tropical island over China: morphology and meteorology

open access: yesAtmospheric Environment: X
Airborne pollen is an important primary biological aerosol particle in tropical regions, greatly impacting climate and human health. However, the pollen morphology in tropical areas, particularly their impact on pollen dispersal, remains unknown.
Mengyuan Pang, Ningyan Fu, Siyang Li
doaj   +1 more source

Pollen morphology of Cornus mas L. and Cornus sanguinea L.

open access: yesForestist, 2017
Pollen morphology of Cornus mas L. and Cornus sanguinea L.Abstract: The pollen morphology of 2 species of the genus Cornus L. distributed in Turkey was studied with light and scanning electron microscope. The pollen of genus Cornus is 3-colporate. Pollen
Nurgul Karlioglu Kilic, Gamze Tuttu
doaj   +1 more source

Pollen morphology of Curroria, Mondia, Socotranthus and Stomatostemma (Periplocaceae)

open access: yesBothalia: African Biodiversity & Conservation, 1993
The pollen morphology of I Planch., O Skeels, Socotranthus Kuntze and Stomatostemma N.E. Br. was studied.All the genera are characterized by pollen grains arranged in tetrads. The arrangement of the grains may be rhomboidal, tetrahedral or decussate. The
R. L. Verhoeven, H. J. T. Venter
doaj   +1 more source

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