The Effect Of Altering Source-sink Ratio On Kernel Quality And Leaf Senescence In Peanut

In order to prove up the effect of different source-sink ratio on peanut yield, kernel quality and the senescence of leaves and roots, the experiments of getting rid of 25%, 50% and 75% leaves and flowers artificially were designed in field combining pot culture from 2002 to 2005. And the experiments were carried out in the experimental station and the crop high yield physiological lab of Shandong Agricultural University, Taian, China. The main results were as follows. 1 The effect of altering source-sink ratio on peanut yield Altering source-sink ratio decreased the yields of the two peanut cultivars (Fenghua1 and Luhua15) except removing 25% leaves and 25% flowers in Fenghua1. And the more leaves and flowers were getting rid of, the more the yields decreased. 2 The effect of altering source-sink ratio on plant characters in peanut Removing leaves restrained plant growth, and the more leaves were removed, the more plant growth was restrained. Removing flowers promoted plant growth, but the effect decreased when more flowers were removed. With more and more leaves and flowers were removed, the pods of per plant decreased. 3 The effect of altering source-sink ratio on leaves senescence in peanut Removing a few of leaves and flowers could increase the chlorophyll content (Chl. content) and the photosynthetic rate (Pn) in leaves, and delayed...