棉花根系生长特性研究 关键词：棉花，根系，剪根，水分亏缺，热激，激素 [gap=12877]Keywords: cotton, root, root-tip cutting, water deficit, heat shock, hormone
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利用水培试验，研究了剪根等处理后水稻群体光合速率的动态变化。
The effects of wiping out roots on rice canopy apparent photosynthetic rate (CAP) after heading were studied with solution experiments.
沿着纸张纵向剪，注意不要剪断最后一根纸条。
Cut the paper lengthwise along the line. Don't cut off the last paper strip.
试验结果表明，岩土体的抗剪强度是随含根量的增加而提高。
Result of the test indicate, shear strength of rock and soil mass improved with the increase of root content.
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