Different application methods of humic acid and zinc differentially regulate osmotic balance and C-repeat binding factor pathways in cold-stressed oat (Avena sativa L.) 1Field Crops, Osmangazi University, Eskisehir, Turkey 2Soil Science and Plant Nutrition Department, Agricultural Faculty, Osmangazi University, Eskisehir, Turkey 3Field Crops Department, Agricultural Faculty, Kahramanmaras Sütcü Imam University, Kahramanmaras, Turkey DOI 10.7717/peerj.20927 Academic Editor Diaa Abd El-Moneim...