The results showed that seedling could raise its root vigor against soil drought in some scope.
结果表明：在一定的土壤干旱范围内，苗木可以通过提高根系活力来适应逆境。
Digitaria longiflora and new strain Agrsostis stolonifera had dark green color and high root vigor.
长花马唐、匍匐翦股颖新品系色泽深，根系活力较高。
Under different conditions of soil moisture, seedling root vigor was studied for major tree species planted in the Weibei Loess Plateau by means of a pot experiment.
采用盆栽试验的方法，研究了不同土壤干旱条件下渭北主要造林树种苗木根系活力的变化。
The results showed that applying potassium humate increased the root fresh mass and root vigor significantly, and promoted the root growth especially in later period.
结果表明：施用腐植酸钾显著地提高了生姜根系鲜质量和根系活力，促进了根系的生长发育，尤其在生育后期表现明显。
Root vigor was affected not only by the degree of soil drought but also by the duration of soil moisture.
苗木根系活力除了受土壤干旱协迫程度的影响之外，还受到干旱持续时间的影响。
Root vigor was affected not only by the degree of soil drought but also by the duration of soil moisture.
苗木根系活力除了受土壤干旱协迫程度的影响之外，还受到干旱持续时间的影响。
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