The reaction tendency of the active fillers(nano-Si/Al powder)in the pyrolysis procedure and the reinfiltration-pyrolysis process were especially discussed.

Since the period of plant growth and development of cotton and the rainy season overlap,a combination of waterloging and salinity may occur in saline cotton field,but the effect of the combined stress on cotton is still not well documented.

Changes in activity of peroxidase in leaf disks of Vitis bryonifolia under salinity were investigated.