Results 91 to 100 of about 84,624 (300)
PhytoFrontiersPollen health is a key determinant of successful plant reproduction and crop yield. Prunus necrotic ringspot virus (PNRSV) and prune dwarf virus (PDV) are pollen-borne viruses of stone fruits, including peaches, primarily transmitted through vegetative ...
Mandeep Tayal +6 more
doaj +1 more source
Pollen morphology and availability of pollen and stigma in Syzygium (Myrtaceae) [PDF]
Revista Brasileira de FruticulturaThe present study aimed to describe the pollen morphology in three species of Syzygium, to test pollen availability and stigma receptivity. The pollen was analyzed by light and scanning microscopy to show the detailed ornamentation of the pollen grains ...
Guilherme Nacata +3 more
doaj +2 more sources
POLLEN MORPHOLOGY OF SOME EUROPEAN ROSACEAE [PDF]
Acta Botanica Neerlandica, 1966 In this preliminary investigation attention was paid to pollen morphology of West-European species of the Rosaceae. Some new terms were used like fastigium, endocingulus etc. The terminology of Iversen and Troels-Smith has been followed in addition to improvements by Erdtman.
openaire +2 more sources
Early evolutionary history of the seed
Biological Reviews, EarlyView.ABSTRACT The seed is an essential stage in the life history of gymnospermous and angiospermous plants, facilitating both their survival and dispersal. We reappraise knowledge of the evolutionary history of the gymnospermous seed, from its origin in the late Devonian through to the well‐known end‐Permian extinctions – an interval encompassing the ...
Richard M. Bateman +2 more
wiley +1 more source
Acta Agrobotanica, 2012 The study of the morphology of pollen concerned eight species of the genus Taraxacum. Seven types were chosen with a different number of chromosomes belonging to the section Palustria: Taraxacum paucilobum 2n = 3x = 24, T.
Jolanta Marciniuk +1 more
doaj +1 more source
Phylogenetic relationships in Betula (Betulaceae) based on AFLP markers [PDF]
, 2008 The genus Betula comprises various species in boreal and temperate climate zones of the Northern Hemisphere. The taxonomy of Betula is controversial and complicated by parallel evolution of morphological traits, polyploidization events, and extensive ...
Gilissen, L.J.W.J. +4 more
core +2 more sources
Ultrastructural Morphology of ‘Nonpareil’ Almond Pollen
HortScience, 1989 Abstract The stability of some morphological and biometric characteristics of ‘Nonpareil’ almond [Prunus dulcis (Mill.) D.A. Webb, syn. P. amygdalus Batsch.] pollen was evaluated to determine its usefulness in distinguishing among different cultivars.
MULAS Maurizio +2 more
openaire +2 more sources
Key Challenges for Commercializing Perovskite–Silicon Tandem Solar Cells
Carbon Energy, EarlyView.This review discusses the scientific and technological challenges in advancing perovskite–silicon tandem solar cells (PSTSCs) from lab‐scale to commercial viability, focusing on long‐term stability, scalability, and economic feasibility. Key issues include intrinsic and extrinsic degradation factors, installation conditions, environmental impacts, and ...
Bilal Mehmood +16 more
wiley +1 more source
Intercomparison of Multiple UV-LIF Spectrometers using the Aerosol Challenge Simulator [PDF]
, 2019 Measurements of primary biological aerosol particles (PBAPs) have been conducted worldwide using ultraviolet light-induced fluorescence (UV-LIF) spectrometers.
Attwood, Alexis +9 more
core +3 more sources
Interaction Between Actin and Microtubules During Plant Development
Cytoskeleton, EarlyView.ABSTRACT The dynamic interaction between actin filaments (AFs) and microtubules (MTs) plays a crucial role in regulating key developmental and physiological processes in plant cells, particularly in the formation of specialized cell types with distinct shapes and functions, such as pollen tubes, trichomes, and leaf epidermal cells.
Zining Wu +3 more
wiley +1 more source