Uticaj suše i oporavka na parametre razmene gasova kod populacija hrasta lužnjaka gajenih u polukontrolisanim uslovima / The effect of drought stress and recovery on pedunculate oak populations grown in semi-controlled conditions
2017
Bojović, Mirjana (Univerzitet Edukons, Sremska Kamenica (Srbija). Fakultet zaštite životne sredine) | Nikolić, Nataša (Prirodno-matematički fakultet, Novi Sad (Srbija). Departman za biologiju i ekologiju) | Borišev, Milan (Prirodno-matematički fakultet, Novi Sad (Srbija). Departman za biologiju i ekologiju) | Pajević, Slobodanka (Prirodno-matematički fakultet, Novi Sad (Srbija). Departman za biologiju i ekologiju) | Horák, Rita (Učiteljski fakultet na mađarskom nastavnom jeziku, Subotica (Srbija)) | Pavlović, Lazar (Poljoprivredni fakultet, Novi Sad (Srbija)) | Vaštag, Erna (Poljoprivredni fakultet, Novi Sad (Srbija))
Two pedunculate oak (Quercus robur L.) populations were grown in a semi-controlled conditions and were subjected to different tratments: optimal soil moisture (control), drought followed by recovery of optimal soil moisture (S1) and permanent drought treatment (S2).Variation in leaf gas exchange parameters such as photosynthesis (A) and transpiration intensity (E), stomatal conductance (gs), instantaneous water use efficiency (WUE) as well as intrinsic water use efficiency (WUEi) were investigated among populations in their response to water deficit and recovery from drought. The results of the study indicate specific adaptive predispositions of examined populations in relation to drought stress and recovery, which provides reliable guidance for assessing their potential for cultivation under water deficiency conditions and the possibility of recovery after reestablishing optimum water supply. Keywords:
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