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Diversity of darkling beetle community in the artificial cultivation Caragana intermedia shrub-desert grassland ecotone in Yanchi County, Ningxia, China Effects of Ammonium and Amio-acid Nitrogen Fertilization on Plant Growth and Carbon Metabolism of Sugar beets(Beta vulgaris L.) Direct Embryogenesis from Protoplasts of Sugar Beet A Study on Pollination Biology of Paeonia suffruticosa subsp. spontanea (Paeoniaceae) The Systematic Position of Beesia: Evidence from ITS (nrDNA) Sequence Analysis Purification technology of steviol glycosides by macroporous adsorption resin Determination of four fatty acids in active fraction with anti-prostate hyperplasia of rape bee pollen by HPLC-ELSD Effect of nitrogen fertilization on nitrate reductase and nitrite reductase activities of sugar beet Effects of Pi deficiency on characteristics of resistant physiology in different sugar beet (Beta vulgaris L.) genotypes Effects of E-β-farnesene release on the spatial distribution patterns of cabbage aphids and lady beetles Effects of flax seed on beef quality and fatty acids in fattening cattle Chromosome Studies of Subgenus Gymnaconitum Endemic to China and Beesia (Ranunculaceae) Scanning Electron Microscope Observation on Antenna of Red Turpentine Beetle (Dendroctonus valens LeConte) Study on Trapping Monochamus alternatus and Other Pine Boring Beetles with M99-1 Liquid Attractant Extraction cDNA Fragments Specially Expressed in Lines M14 in Sugar Beet by mRNA Differential Display Effect of NO3－/NH4+ Ratio in Culture Solution on Nitrate and Ammonium Uptake in Seedlings of Sugar Beet (Beta vulgaris L.) Dynamics of Callose Deposition in Cell Walls during Megasporogenesis in the Apomictic Monosomic Addition Line M14 of Beta corolliflora of Sugar Beet Analysis of the Genetic Diversity in Different Types of Sugar Beets by SRAP and SSR Markers Ultrastructure of Megagametophyte during the Development Period in Suger Beet(Beta vulgaris L.)