Adaptive evolution of α-amylase genes in wild barley (Hordeum spontaneum) on micro and macro scales Pre-harvest Sprouting Resistance of the Dominant Dwarfing Gene Rht3 and Its Derivative Lines in Wheat Saturation Mutagenesis and the Enzyme Properties of the Alpha-Amylase from Geobacillus sp. SCREENING FOR WHEAT a-AMYLASE VARIANT WITH ALTERED HORMONE SENSITIVITY IN THEIR ALEURONE LAYERS The Isolation of Beta-amylase-producing Bacteria and Cloning, Expression of Beta-amylase Gene in Escherichia coli