在分根系统中，白羽扇豆的排根占根系干重的比例在局部供磷（羟基磷灰石）的土层中大量增加。

The percentage of root biomass allocated to cluster roots increased in the soil layer supplemented with P in a split-root system.

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用游动孢子接种参根，地上部产生典型症状只占发病参根的2.5%。

The typical symptom above ground had only 2.5 percent of diseased Ginsenginoculated them with Zoospores.

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结果：指动脉的远侧掌横弓位于甲根平面、甲根平面以远和以近者分别占73％、19％和8％。

Results:The distal transverse palmar arches(DIPA) were 73%, 19% and 8% in nail root cross section, distal and proximal nail root respectively.

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