Significant positive correlation coefficient was found between drought resistance and root dry weight.
结果表明：幼苗的抗旱性与根干重呈显著正相关。
Dry weight decreased, that of plant decreased more than stalk and root.
植株和各部位干重都减少，植株干重降低较多，菜苔和根系降低较少。
The dry root weight under high N level was lower than that under low N level;
单株玉米的根干重随水分条件的改善而提高，高N处理的玉米根重低于相应的低N处理；
The dry root weight under high N level was lower than that under low N level;
单株玉米的根干重随水分条件的改善而提高，高N处理的玉米根重低于相应的低N处理；
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