棉花学报
Mianhua Xuebao                                            ISSN 1002－7807 CN41－1163/S
Cotton Science                                           2004，Vol. 16，No.6，November 15

Contents

•RESEARCH REPORTS•
(323) Study on Transformation of Cotton Pollen Using Agrobacterium Tumefaciens
...................................................................... LI Xao, WANG Xue-de

(328) Studies on the Change Regular of Time Series of Main Characters for Cotton Varieties in the Yellow River Valley Region.................. WANG Zhi-zhong, LIU Xiu-ju, LI Wei-ming, et al

(333) Inheritance Mode and the Relative Fitness of Profenofos Resistance in Cotton Bollworm, Helicoverpa armigera ...................................Lü  Mei, SHEN Jin-liang, ZHENG Zhou-fei

(338) Study on Fiber Characteristics of F₁ and F₂ Hybrid Cotton
............................................. CHEN Jin-xiang, LI Rui-lian, CHEN Bu-yang,et al

(343) Purification and Antiserum Preparation of Vd-toxin from a Severe Defoliating Virulence Strain of Verticil-lium dahliae on Cotton
...........................................QI Jun-sheng, SHI Xue-yan, JIAN Gui-liang, et al

(347) Studies on Heterosis of Growth and Some Physiological Traits in Hybrid Bt-cotton Cikangza
................................................JIN Zhu-qun,CHEN Zhong-hua, HUANG Yi-qing,et al

(352) Elementary Exploration on Factors of Influencing Transformation via Particle Bombardment Embryonic Calluses of Cotton..................GENG Li-zhao, LI Fu-guang, LIU Chuan-liang, et al

(357) The Influence of Soil Micro-organism to Cotton Verticillium wilt
....................................................... XU Rui-fu,Lu Ning-hai,LI Xiao-Li,et al

(360) Genetic Relationships among Wild Cotton Species Analyzed by Molecular Markers
................................................................... AMUDHA J, Balasubramani G

•REVIEW & INTERPRETATION•
(368 ) Cell Engineering and New Germplasm Development in Cotton
............................................. ZHANGXian-long, SUN Yu-qiang, WU Jia-he, et al

(374) Biological Synthesis of Cellulose during Cotton Fiber Thickening Process
............................................ BIAN Hai-yun, ZHOU Zhi-guo, CHEN Bing-lin, et al

(379) Progress of Cotton Heterosis Expression Mechanisms
............................................................... XING Chao-zhu, YU Shu-xun