EFFECTS OF MOLYBDENUM AND PHOSPHORUS FERTILIZERS ON COLD RESISTANCE IN WINTER WHEAT

A pot trial with acid yellow-brown soil was conducted to investigate the effects of molybdenum (Mo) and phosphorus (P) fertilizers on cold resistances of winter wheat. Molybdenum was applied at two rates (0 and 0.15 mg Mo kg(-1) soil) and P at four rates [0, 100, 200, and 300 mg phosphorus pentoxide (P2O5) kg(-1) soil] in experiment 1. Both Mo and P fertilizers were applied at two rates (0 and 0.15 mg Mo kg(-1) soil; 0, 150 mg P2O5 kg(-1) soil) in experiment 2. Seed yield, soluble sugar, water-soluble protein, ascorbic acid (AsA), malondialdehyde (MDA), and abscisic acid (ABA) concentrations were studied. The results indicated that Mo and P fertilizer increased seed yield, soluble sugar, water-soluble protein, and AsA but decreased the MDA. It implied that appropriate Mo applied with P application had beneficial effects on increasing seed yield and enhancing the cold resistance ability through changing biological substances concentration in winter wheat.