Ultrastructure of Sunflower Embryo Sac in Respect to the Concept of Female Germ Unit Effects of Photoperiod Under Red LED on Growth and Quality of Sunflower Sprouts The Ultracytochemical Localization of ATPase Activity in the Ovules of Sunflower An Ultrastructural Study on the In Vitro Parthenogenesis in Sunflower Isolation and Identification of Viable Embryo Sacs in Several Angiosperm Species Chemical constituents from seeds of Helianthus annuus Comparison of phosphorus uptake and accumulation capacity among three plant species Adaptability of Helianthus annuus seedlings to crude oil pollution in soil and its improvement measures under salinization stress. Cloning and Expression of ζ-carotene Desatura Gene in Ornamental Sunflower Uptake and Distribution of 133Cs and 88Sr in sunflower(Helianthus annuus L.) Effects of al穔ali-stress on Aneurolepidium chinense and Helianthus annuus Distribution and Accumulating Regularity of Secondary Metabolites in Helianthus annuus L. Influences of sunflower sowing dates on preventing Homoeosoma nebulellum and Verticillium dahliae Cloning and Function Analysis of Pathogenesis Related Protein Gene HaPR1 from Sunflower (Helianthus annuus) Study on antimicrobial assay of root extract of allelopathic Helianthus annuus Effects of Photoperiod Under Red LED on Growth and Quality of Sunflower Sprouts Nutritional evaluation of sunflower straw and plate in sheep Effect of Orobanche cumana Parasitization on Growth and Antioxidant Enzymes Activity of Different Helianthus annuus Varieties in Seedling Stage[JZ)]