Buscar
Mostrando ítems 31-40 de 1458
Phytosanitary quality of Brachiaria brizantha 'BRS Piata' seeds in function of climate conditions
(Univ Federal Campina Grande, 2019-04-01)
Infected seeds are one of the main pathogen transmission vehicles, and they are responsible for significant losses in production fields; phytosanitary defense depends on the inoculum and climatic factors. Thus, in this ...
Inheritance of seed weight in large-seed grass pea lathyrus sativus l.
(INST INVESTIGACIONES AGROPECUARIAS, 2010)
Spatial patterns of the germinable soil seed bank of coexisting perennial-grass species in grazed shrublands of the Patagonian Monte
(Springer, 2008-09)
We compared the size and spatial pattern of the germinable soil seed bank (GSB) of the three dominant perennial-grass species in the arid Patagonian Monte of Argentina. These species differ in plant functional traits, seed ...
Restoration of palatable grasses: A study case in degraded rangelands of central Argentina
(Academic Press Ltd-elsevier Science Ltd, 2008-10)
Restoration of palatable grasses on degraded rangelands dominated by unpalatable grasses in central Argentina is limited by low availability of seeds and safe sites for seedling establishment. The objective of our study ...
Germination sensitivities to water potential among co-existing C3 and C4 grasses of cool semi-arid prairie grasslands
(Wiley, 2015-03)
An untested theory states that C4 grass seeds could germinate under lower water potentials (Ψ) than C3 seeds. We used hydrotime modelling to study seed water relations of C4 and C3 Canadian prairies grasses to address both ...
Threshold modelling Lolium multiflorum seed germination: Effects of Neotyphodium endophyte infection and storage environment
(International Seed Testing Association, 2012-09)
Several forage species establish mutualistic associations with vertically-transmitted endophytic fungi that improve their fitness. However, the endophyte may be related to livestock toxicosis and hence ageing seeds has ...
Factors influencing seed germination in Cerrado grasses
(2016-01-01)
Few studies address the ecology of herbs of Cerrado grasslands, which are ecosystems where the long dry season, high temperatures, insolation, fire and invasive grasses greatly influencing germination and the establishment ...
Grazing impact on desert plants and soil seed banks: implications for seed-eating animals
(Gauthier-Villars/Editions Elsevier, 2014-05)
We assess whether the knowledge of livestock diet helps to link grazing effects with changes in plant cover and soil seed bank size, aiming at inferring the consequences of grazing on seed-eating animals. Specifically, we ...