...质积累影响的研究结果表明pH值在4.50～7.50范围内，根系体积和干重都随着pH值上升而增加，AAAR(活跃吸收面积)、TAAR(总吸收面积)也随着升高，烟叶中烟碱、总氮累积量随着pH值上升而增加，烟碱和总氮累积量与pH之间呈抛物线关系，关系式分别为Y=-61.429X~2+391...
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高库容水稻株系抽穗期的单株根系活性高、单株根系总吸收面积和单株根系活跃吸收面积大。
Indica rice with large sink also had higher root activity per plant, larger root absorption or active absorption area.
根系发达、根系活跃吸收表面积及总吸收表面积大的品种，有较强的耐铜毒性。
The rice varieties with strong root system, large active absorption root surface and total root surface area had strong tolerance to copper poison.
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