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Endangering Causes of an Endemic Plant Heptacodium miconioides in East China Study on the causes and defense strategies for drought In Xinyang City Counter Measures to Overcome the Present Inadequate Means for the Protection of Near Extinct Species of Chinese Medicinal Plants Temporal-spatial variations of reference evapotranspiration in Anhui Province and the quantification of the causes. Summarization on causes of seed dormancy and dormancy polymorphism Prospect and application of microsatellite population genetics in study of geoherbs Primary analysis on morphological variation of flower and primary analysis of cause in Zephyranthes grandiflora Analysis of problems and causes in industrial chain of traditional Chinese medicine A review on urban metabolism: connotation and methodology Death causes and conservation strategies of the annual regenerated seedlings of rare plant, Bretschneidera sinensis STUDIES ON THE CAUSES OF POLLEN DERIVED ALBINO PLANTLETS IN RICE ANTHER CULTURE.I．INFLUENCE OF CERTAIN CHEMICAL MUTAGENS ON THE FORMATION OF ALSINO PLANTLETS． Effect Analysis and Forming of Plywood Industry Clusters in China THE TYPES OF ECOLOGICAL DISASTERS IN THE JOINT AREAS OF SHANXI,HEBEI,SHANDONG AND HE’NAN PRO VINCES AND ANALYSIS OF THE CAUSES OF THE DISASTERS Analysis of causes for adverse reaction of Yuxingcao injection Death causes from withering of Larix olgensis in Changbai Mountain area THE DISTRIBUTION,PROPAGATING AND ENDANGERED CAUSES OF POTANINIA MONGOLICA IN HONG SHAGANG AREA OF MINQIN COUNTY Distribution and Conservation Strategy of Endangered Parakmeria lotungensis