Variation of Nitrogen Utilization among Catalpa bungei Clones at Nursery Stage and High-Yield Clones Selection Effects of exponential fertilization on biomass allocation and root morphology of Catalpa bungei clones Development of Male and Female Gametophytes between Fertile Line and Male Sterile Line’s Flowers of Catalpa bungei C.A.Meyer. Nitrogen distribution and efficiency difference of Catalpa bungei C. A. Mey. clones at nursery stage Study on Characteristic Differences of Catalpa bungei Clones in vitro Culture Growth Traits of One-Year-Old Catalpa bungei Clones in Seedling Stage A New Catalpa bungei Cultivar‘Yiqiu 1’ A New Catalpa bungei Cultivar‘Yiqiu 1’ Genetic Diversity of Growth and Leaf Traits of Catalpa bungei Relation between the Growth of Young Stand of Catalpa bungei and the Site Conditions of Low Mountain and Hilly Region Change of Nutrient Content and Oxidase Activities during Rooting of Catalpa bungei cl.‘Yu 1‘ An Elite Variety of Catalpa bungei ‘Wanqiu 8401’ Coupling Effects of Soil Water and Fertilizer Application on Leaf δ13C of Catalpa bungei Seedlings An Elite Variety of Catalpa bungei ‘Yunduo’ Timber Physical and Mechanical Properties of New Catalpa bungei Clones Isolation and Identification of Bioactive Compounds with Antioxidant from Catalpa bungei Interspecific Hybridization of Catalpa bungei and Catalpa fargesii f. duclouxii Rooting Response of Catalpa bungei Softwood Cutting to Different Hormone Treatments and Medium Mixture Physiological Response to Drought Stress of Four Kinds of Stocks Grafted Seedlings of Catalpa bungei cl.‘Yu-1’ Interactive effects of soil water and fertilizer application on leaf net photosynthetic rate and SPAD readings of Catalpa bungei seedlings Study on Polyphenol Content and Antioxidant Activity from Twelve Clones of Catalpa bungei Leaves Effects of Nitrogen Exponential Fertilization on Photosynthetic Characteristics of Three Catalpa bungei Clones Studies on Photosynthetic Characteristics of Three Clones of Catalpa bungei under Various Salt Stress An Elite Variety of Catalpa bungei ‘Wanqiu 8402’