Cotton Science，2006，issue 3

棉花学报
Mianhua Xuebao ISSN 1002－7807 CN41－1163/S
Cotton Science 2006，Vol. 18，No.3，May 15

Contents

·RESEARCH REPORTS·
（131）Generation of Antibiosis-free Mutants of Bacillus subtilis NCD-2 with Transposon Tn917 and the Role of Antibiosis of NCD-2 in Controlling Cotton Sore Shin
…………………………………………………………………SUN Hui-gang，JIANG Ji-zhi，LI She-zeng，et al

（135）Construction of Molecular Linkage Map and QTL Mapping for Earliness in Short-season Cotton …………………………………………………FAN Shu-li，YU Shu-xun，SONG Mei-zhen，et al

（140）Molecular Cloning and Expression Analysis of a Serine/Threonine Protein Kinase Gene in Upland Cotton……………………………………………YANG Yu-wen，NI Wan-chao，ZHANG Bao-long，et al

（145）Effect of Exogenous Materials on Cotton Fiber Strength Development in Low Temperature Conditions………………………………… BIAN Hai-yun，ZHANG Wen-jing，CHEN Bing-lin，et al

（150）Comparative Studies on the Photosynthetic Characteristics and Chlorophyll Fluorescence Parameters with Okra-leaf and Normal-leaf Hybrid Cotton Cultivars
…………………………………………………………………MA Zong-bin，LI Ling-li，FANG Wei-ping，et al

（155）Vigor Evaluation on Mechanically Delinted Cotton Seed
……………………………………………………………ZHANG Zhan-bei，DUAN Guo-qi，ZHANG Hui-jie，et al

（160）Study on the Parameters of Digital Images of Diagnosis on Cotton Premature senescenceGrade…………………………………………LI Ya-bing，MAO Shu-chun，WANG Xiang-he，et al

（164）Monitoring and Risk Assessment of Resistance to Tebufenozide in Spodoptera Exigua……………………………………………………………JIA Bian-tao，SHEN Jin-liang，LIU Yong-jie

（170）The Pigment Distribution Regulation of the Natural Brown Cotton and Relations between Pigment Synthesis and Cotton Fiber Development
…………………………………………………………………ZHAN Shao-hua，LIN Yi，CAI Yong-ping，et al

（175）Effects of Potassium on Yield of Cotton (Gossypium hirsutum L.) and Optimal Quantity of Potassium in Huanghuaihai Plain， China
………………………………………………………………FAN Xi-feng，WANG Han-xia，TIAN Xiao-li，et al

（180）Genetic Characteristics of Chlorophyll Fluorescence Parameters of Cotton Leaves…………………………………………………ZHANG Chun-mei，WANG Xiao-yan，XU Hai-jiang，et al

·RESEARCH & NOTES·
（184）Study of the Leaf Photosynthesis Characteristics and Nitrogenous Fertilizer Adjustment Effect of Brown Color Cotton……………………………HOU Bi-xin，ZHANG Mei-tao，LI Zi-hui，et al

（186）Genetic Diversity Evaluation of Shorted-season Upland Cotton Cultivars in China with RAPD Markers……………………………………………………………YU Ji-wen，YU Shu-xun，WANG Wu，et al

（190）Study on Heterosis of CMS-Based Hybrid Cotton (Gossypium hirsutum L.) with Okra Leaf Indicator……………………………………………………………ZHU Wei，WANG Xue-de，HUA Shui-jin，et al