Preliminary investigation of physiological and biochemical mechanisms on drought-resistance of wheat enhanced by leaf-spraying fulvic acid
1992
Li Xuhang | Yin Weiyi | Shao Limei (Academia Sinica, Beijing (China). Inst. of Botany)
Leaf-spraying fulvic acid can obviously enhance the water maintaining capacity of wheat seedlings, especially when under the condition of drought stress. The major physiological influences by fulvic acid are: decrease in leaf transpiration, increase in diffusion resistance of stoma and increasing in dry matters in the seedlings. Fulvic acid can also cause the proline content in the leaves to increase twice as much as that in the controls, and even in the condition of sufficient water supply, the proline content in the treated leaves increased by 78%
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