STUDY ON SOME PHYSIOLOGICAL CHARACTER OF SPIRULINA MAJOR KUETZ. Effect of Peganum multisectum on seedling growth and cell protective enzyme system inmaize Studies on DNA Transfer from C4 Crop to Wheat 种壳对大麦种子生理和成熟胚培养的影响及机理探讨Ⅱ INTRASPECIFIC ISOPEROXIDASE VARIATION OF POPULUS TOMENTOSA CARR Experimental Identification of “Songlan” (Isatis indigotica) and Woad (I.tinctoria) Introduced into China MICROSTRUCTURAL CHANGES AND ISOPEROXIDASE CHANGES OF COTYLEDON CELL IN SOPHORA JAPONICA L. DURING SEED DEVELOPMENT COMPARATIVELY STUDY ON ISOPEROXIDASE OF "LUSTERED WALNUT"AND NORMAL WALNUT Experimental Identification of “Songlan” (Isatis indigotica) and Woad (I.tinctoria) Introduced into China ANALYSIS OF ISOPEROXIDASE OF 36 DAY LILY KINDS