THE INFLUENCE OF CHILLING TEMPERATURE ON THE CHANGES IN CHLOROPHYLL FLUORESCENCE IN VIVO IN RICE FLAG LEAVES

The chlorophyll fluorescence emission in detached rice flag leaves had been measured at chilling temperature. The results showed the decrease to some extent in the veriable fluorescence (Fv) in rice as similar as in maize and potato plant, however, with a little change in the total quanching (P-T) probabl because of a lower sensitivity of the stroma enzymes in carbon assimilation system in rice to chilling.