CYTOLOGICAL EFFECTS AND RAPD ANALYSIS OF Allium fistulosum L.IRRADIATED BY ~(12)C~(6+) HEAVY IONS Studies on the Changes of Endogenous Hormones during the Course of Regeneration from Allium fistulosum L. Mature Embryos Culture Evaluation of Application of SRAP on Analysis of Genetic Diversity in Cultivars of Allium fistulosum L. Changes of Endogenous Hormones During the Process of Flower Bud Differentiation of Welsh Onion A Comparative Study of Anther and Pollen Development in Male Fertile and Male. Sterile Green Onion (Allium fistulosum L.) Changes of Endogenous Hormones During the Process of Flower Bud Differentiation of Welsh Onion Evaluation of Application of SRAP on Analysis of Genetic Diversity in Cultivars of Allium fistulosum L. Ultrastructure of the Egg Apparatus and the Synergids after Fertilization in Allium fistulosum A Pharmacognostical Study on the Fistular Onion Bulb (Allium fistulosum) Microtubule Cycle in Root Tip Cells of Allium fistulosum L. The Development of Green Onion (Allium Fistulosum L. )Embryo and Endosperm Studies on the Changes of Endogenous Hormones during the Course of Regeneration from Allium fistulosum L. Mature Embryos Culture Observations on Ultrastructure of Pollen Development from Microsporocyte to Early Two-Celled Pollen in Welsh Onion(Allium fistulosum)