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Citation:

A Study on the Drought Resistance of Three Shrub Spieces

  • Received Date: 1992-09-20
  • The drought resistance of Amorpha fruticosa L.,Hippophae ramnoides L.and Caragana microphylla Lam.in pots was investigated in three levels of soil water content.The growth indexes and the productivities of drought resistance (PDR) were measured.The effect of water stress on transpiration daily course and leaf water conservation ability was tested.The effect of water stress on osmoregulation and water content of the seedlings was obtained using Press Chamber and PV techniques.The results showed that C.microphylla had the strongest ability of drought resistance.Its capability of PDR,transpiration,water conservation and osomregulation was highest.The drought resistances of both H.rkamnoides and A.fruticosa were nearly the same.H.rhamnoides had a stronger capability of transpiration and water conservation regulation than that of A.fruticosa,but its osmoregulation ability was weaker than that of A.fruticosa.The PDR of them were similar to each other.
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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A Study on the Drought Resistance of Three Shrub Spieces

  • 1. Hebei Forest College, Baoding 071000
  • 2. Beijing Forestry Uaiversity

Abstract: The drought resistance of Amorpha fruticosa L.,Hippophae ramnoides L.and Caragana microphylla Lam.in pots was investigated in three levels of soil water content.The growth indexes and the productivities of drought resistance (PDR) were measured.The effect of water stress on transpiration daily course and leaf water conservation ability was tested.The effect of water stress on osmoregulation and water content of the seedlings was obtained using Press Chamber and PV techniques.The results showed that C.microphylla had the strongest ability of drought resistance.Its capability of PDR,transpiration,water conservation and osomregulation was highest.The drought resistances of both H.rkamnoides and A.fruticosa were nearly the same.H.rhamnoides had a stronger capability of transpiration and water conservation regulation than that of A.fruticosa,but its osmoregulation ability was weaker than that of A.fruticosa.The PDR of them were similar to each other.

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