1Understanding and thinking on promoting modern agriculture development of Henan province5-82Advance on Polyploid in PlantsDAI Xi-mei, HUANG Qun-ce9-123Effects of Cu2+ on Seed Germination and Seedling Growth of WheatShao Yun, JIANG Li-na, LI Chun-xi, LI Xiang-li, LU Xu-yang, ZHOU Qi-yuan13-164Progresses,problems and countermeasures on maize breeding in Henan province17-18,305Effect of Different Pretreatment on Callus Formation of Wheat Mature EmbryoCHEN Jun-ying, YIN Hai-yan, LIANG Jing-jing, XU Hai-xia, CHENG Xi-yong, ZHAN Ke-hui, CHEN Xin-jian, CUI Dang-qun, LU De-bin19-216Primary Study on Exogenous DNA Introduction into Tobacco Via the Pollen-tube PathwayDENG Ming-Jun, CUI Hong22-247Effect of cutting terminal buds on K content of tobacco plant25-268Studies on Optimal Model of High Yield Seed-making of Double-low Hybrid RapeseedHU Zheng-yuan, LI Yu-feng27-309Studies on the Alien Invasive Plants and Their Control in Henan ProvinceTIAN Chao-yang, LI Jing-zhao, XU Jing-wen, ZHENG Xiao-jun, ZHU Chang-shan31-3410The main disease of maize in Henan province and their control countermeasures35-3711Investigation of Sweet Potato Virosis and Identification of Pathogenic Serology in Nanyang CitySHAN Lin-na, SHANG Zeng-qiang, GE Ying-lan, LI Jian-bo38-4012Application of Matter Element Model in Farm Land Suitability Evaluation Based on SOTER Database--A Case Study from Hubei ProvinceWANG Zhen-wei, ZHANG Hai-tao, ZHOU Yong41-4513Effect of Bio-organic Fertilizer on Soil Fertility and the Dry Matter Accumulation of Flue-cured TobaccoLIU Guo-shun, PENG Hua-wei46-4914Selection of hot-tolerant tomato varieties49-5115Studies on the Change of Kiwifruit Jam's AA and DHA during Its ProcessingHAO Li-hua, ZHANG Xin, WU Xiao-zong52-5516Experiment of using electric potential water to control Anthracnose on grape56-5717Pollution-free and comprehensive control techniques of the main pests on vegetables growing in plastic houses58-5818Research progresses on Bacillus licheniformis highly producing alkaline protease59-6119General biological characteristics of Newcastle Disease Virus and its molecular basis of pathogenicity61-6420Application of transgenic technology in animal husbandry production64-66 