The physiological characteristics of drought tolerance of tree specics which possessdifferent mechanisms of drought tolerance were studied with respect to leaf water-holdingability and maintenance of turgor in this paper.

The organization and activity of the cytoskeleton and the changes in turgor play important roles in pant cell morphogenesis.

The results showed that all of six varieties had certain osmotic adjustment and turgor maintenance abili- ties,Eguohong,Black bu.

Research on influence of extrusion on nutrient quality of soybean meal;

Influence of extrusion on chemical components and texture of flaxseed meal;

Test Study on Parameter Optimization of Extrusion System of Rapeseed for Solvent Extraction of Oil;

Based on a new extrusion-expanding pre-treatment technics,a mathematical model was developed to quantitatively analyze the residual oil rate of soy meal at different extrusion conditions including moisture of material,expanding temperature,die length,δ section length,and rotate speed of screw.

This paper combined extrusion-expanding technology and chocolate coating technology, studied the processing flow,technology operating essential and quality controlling ways in producing process,made successfully the chocolate expanding food.

Experimental study on rapeseed extrusion cooking using dimensional analysis;

The microscopic structure of the rapeseed raw material,the extrusion cooking sample and the sample made by traditional screw process was studied by scanning electron microscopy.

The three theories of extrusion cooking,extrusion expansion and microwave expansion processing technique and contrast analysis were mainly described in this paper.