A Preliminary Study on Inher itance Tendency of the Resistance to PowderyMildew Using F1 Progen ies of Chestnut Rose ( Rosa roxburghii Tratt) Induction of Endogenous Polyamine Contents and Powdery Mildew Resistance by Exogenous Spermidine in Melon Seedlings Analysis of the tobacco mutants resistant to CMV Effectiveness of alkaline fertilizer on the control of banana Fusarium wilt and regulation of soil acidity in banana orchard Correlation analysis of amino acids components in cucumber root exudates and fusarium wilt resistance The Impact of Poplar Diameter Characteristics on Disease Index of Canker Distribution of and damage caused by yellow stunt and root rot of Astragalus adsurgens in five northern provinces of China Relationship between rare earth accumulation and rape sclerotiniose A Preliminary Study on Inher itance Tendency of the Resistance to PowderyMildew Using F1 Progen ies of Chestnut Rose ( Rosa roxburghii Tratt) Inversion Anthracnose Disease Indices of Chinese Fir Based on Hyperspectral Derivative Indices Disease development of sheath blight in directly row-seeded Japonica rice and its management with two bio-pesticides Synergistic Action of Plant Growth Regulators and Fungicides on Control Efficiency of Summer Patch in Kentucky Bluegrass Evaluation of Resistance to Sheath Blight (Rhizoctonia solani) in Some Indica Hybrid Rice from Southern China Identification of synthetic wheat accessions with resistance to sharp eyespot Pathogenicity differentiation of Verticillium dahliae of cotton in naturally infested soil Using hyper-spectral derivative indices to inverse Colletotrichumgloeosporioides disease indices Determination of BTH-induced wheat resistance to Puccinia striiformis Relationship Between Osmoregulation and Bacterial Wilt Resistance of Grafted Pepper Vertical distribution of algae in semi-desert soil of Shapotou area,Ningxia Hui Autonomous Region Relationship Between Osmoregulation and Bacterial Wilt Resistance of Grafted Pepper