Callus Induction and Plantlet Regeneration from Mature Embryos of Several Creeping Bentgrasses (Agrostis stolonifera) THE EFFECT OF 4D AND 4R ON THE SYNTHESIS OF THREE KINDS OF ISOZYMES IN WHEAT Studies on Chemical Constituents in the Fruit of Canarium album Raeusch A Preliminary Study on Marking Blue grain Character on Tai-gu Dominant Male Sterile Wheat LEAF ANATOMICAL STRUCTURE AND PHOTOSYNTHETIC PHYSIOLOGICAL CHARACTERISTICS OF C4 DESERT SPECIES SALSOLA COLLINA AND S. ARBUSCULA