| A pot culture experiment was carried out to study the effect of DA-6 on physiology and growth targets of peanut during flowering stage under drought stress.The results indicated that the application of DA-6 could alleviate harm to peanut caused by drought stress, strengthen accumulation of the photosynthetic product and capacity of water utilization and promote the amount of nutrient absorption and pod yield.Compared with the drought stress control, the net photosynthetic speed and the transpiration rate was increased by 48.9% and 26.6% after DA-6 spraying, and 47.8% and 68.0% after DA-6 applying to soil.The water utilization efficiency of DA-6 spray was also distinctly enhanced.Furthermore, the proline content was significantly reduced by 35.1% and 62.0% in DA-6 spray and soil application treatment, MDA content was decreased by 44.9% and 34.2%, while the peanut pod yield was increased by 7.9% and 18.3%, the rough fat content was also significantly enhanced.In all treatments, DA-6 spray had the most significant effect in improving water utilization efficiency and rough fat content.Therefore, DA-6 could be a new potential chemical regulator to strengthen the crops drought resistance in water saving agriculture. |