Variation in acorn characteristics in three provenances of Quercus aucheri Jaub. et Spach and provenance, temperature and storage effects on acorn germination

Germination and seedling growth of holm oak (Quercus ilex L.): effects of provenance, temperature, and radicle pruning

“…In some tree species, large seeds showed increased germination and survival (Ke & Werger 1999, Cicek & Tilki 2007. On the contrary, the rule larger seeds = highest gerination rate does not hold for some other species, as it was in our study (Khera et al 2004, Tilki & Alptekin 2005, Tilki 2010). However, it has been reported that acorn size and morphology are also affected by soil properties and stand characteristics (GeaIzquierdo et al 2006).…”

Foliar morphological variation in the white oak Quercus rugosa Née (Fagaceae) along a latitudinal gradient in Mexico: Potential implications for management and conservation

“…The expected future uncoupling between plant populations and the environments to which they are adapted, as result of climate change (Ledig and Kitzmiller, 1992; Té llez-Valdé z and Dá vilaAranda, 2003; Thomas et al, 2004), makes it even more urgent to understand the patterning of genetic variation among-tree populations and to delineate seed zones (Sá enz- Romero et al, 2003Romero et al, , 2006. However, since there are not available results from provenances tests for most of Mexican forest tree species (including Q. rugosa), an alternative could be a provisional delineation of seed zones based on phenotypic variation, based on the premise that at least part of the phenotypic variation among populations is related to the adaptive genetic variation (Gurevitch, 1992;Denk et al, 2002;Jensen and Deans, 2004;Tilki and Alptekin, 2005;Warren et al, 2005;Hovenden and Vander Schoor, 2006), and that a provisional zoning is better than the absence of criteria for seed movement (Sá enz-Romero et al, 2006).…”

Holm oak (Quercus ilex L.) seed germination and seedlings survival in interventions aimed at the renaturalization of Aleppo pine pine forests (Pinus halepensis Mill.) in the Island of Pianosa (Tuscan Archipelago): preliminary results

“…Le ghiande raccolte avevano un peso medio di 2.61 grammi. Diverse esperienze hanno provato a dimostrare una correlazione tra il peso dei semi e il tasso di germinazione, arrivando però a risultati contrastanti (Tripathi & Khan 1990, Khera et al 2004, Tilki & Alptekin 2005, Tilki 2010, Caliskan 2014.…”