Effects of storage condition and duration on seed germination of four annual species growing in water-level-fluctuation zone of Three Gorges Reservoir Evaluation of allelopathic potential in rice germplasm Evaluation and Screening of Resistance to Barnyardgrass in Germplasm of Wild Rice(Oryza sativa) and African Cultivar Cloning and Sequence Analysis of pdk Gene in [Echinochloa crusgalli var. frumentacea (Roxb.) W. F. Wight] Studies on the Biological Characteristics of Echinochola crusgalli and its Control Methods Cloning and Characterization of Phosphoenolpyruvate Carboxylase Gene from Echinochloa crusgalli Allelopathy of leaves of Parthenium hysterophorus L. on Abutilon theophrasti Medic. and Echinochloa crusgalli Effect of Essential Oil Extracted from Acorus tatarinowii Rhizomes on Germination and Growth of Barnyardgrass, Eclipta and Rice(Oryza sativa) Response of Protective Enzyme in Callus of Barnyard Grass under Oxidizing Stress Induced by Polyacetylene Compound Effect of Barnyardgrass (Echinoch oa Crus Galli) Shading on Nitrogen Fixation of Soybeans Influence of barnyardgrass (Echinochloa crusgalli) on the growth of double-cropping paddy rice and its economic threshold Growth inhibition and action target of photo-activation induced by synthetic polyacetylenes against Echinochloa crusgalli Assay of the gross content of oxygen radical in calli of barnyard grass induced by two photosensitive compounds under ultraviolet irradiation by ESR Allelopathy of flower of Parthenium hysterophorus L. on Echinochloa crusgalli (L.) Beauv. and the isolaton and identification of allelochemicals The growth inhibition of photoactivation and action target on several plants induced by α-terithienyl