PollenAir pollutionAllergyAir pollution affects pollen allergy in at least three ways: through its direct effects on human health, through changes in plant health, and through the direct alteration of the aller
R47-3 ; (C–D) en microscopie électronique à balayage, lamelle n° 1 ; D : détail de la sculpture crotonoïde du grain photographié en C. Fig. 5. Biorecord Superret-croton (equivalent to Stellatopollis hughesii Penny, 1986): (A–B) light microscopy; A: sample BER-7, slide ...
Ditched enclosures are widespread features of the Late Iron Age La Tène Culture in Central and Western Europe. Based on the size and layout of the ditches, they obviously served different purposes (Buchsenschutz2000; Büchsenschütz2019; Sievers2006; Venclová2006). The largest enclosures, with ...
In order to separate different cereals, the biometric data of each individual pollen grain have been evaluated, measuring the average diameter and the pore annulus. The examination, in spite of some limitations that cannot always avoid equivocal d eterminations51,52,74–77, have allowed ...
Mille, P. (2004). Inventaire des différents types de tour utilisés en Europe occidentale, des origines à l’époque médiévale, d’après la documentation textuelle, archéologique et iconographique. In M. Feugère & Gerold (Eds.), Le Tournage Des Origines à l’An Mil, Actes Du Co...
SUMMARY Sunflower improvement by conventional breeding is severely restricted by the availability of a rather limited gene pool owing to natural incompatibilities, even between related species, and by the time scale of most breeding programs. Therefore,
Raising growth of date palm cv. Bartomouda plantlets with date palm pollen grain extract and amino acids compound under greenhouse conditionDarwesh RasmiaS.S ElBanna AAGehan Mohamad Y
‘Charmoy’ in the Blanzy–Montceau-les-Mines basin), the polyplicate pollen grainVittatinasp. is significantly present (about 20%). This may imply preservation conditions that are favoured in fluvial environment, or an ecological preference of theVittatina-producing plant for near-stream ...
Since the first indications by Sands and coworkers [81], the role of biological particles in cloud formation (i.e. pollen, fungal spores, and bacteria can be activated as CCNs) precipitations, ecosystem interactions, has been the subject of an increasing number of studies fully quoted in [...