Abstract:

To improve the level of paper-tube seedlings, the experiment was carried out to find out drought stress resistance of different paper-tube seedlings in sugarbeet, taking different treatment paper-tube seedling as material under drought, electrical conductivity, the soluble protein content, POD activity and the soluble sugar content were studied. The results showed that, electrical conductivity, activity of POD and the soluble sugar content was lower in stronger seedlings than those in week seedlings. The soluble protein content was higher in strong seedlings. The results indicated that, seedling-strengthening agent increased the content of soluble protein, and reduced the electrical conductivity and the soluble sugar content in leaves, so as to strengthen the rice seedling and reinforced it stress resistance. Through analysis, three indices, namely electrical conductivity, POD activity, u the soluble sugar content were screened, which had close relation to the drought resistance.