Observation of Differentiation and Pigment Deposition Process in Colored Cotton Fibers OPTIMIZATION OF RAPD CONDITIONS FROM EXOGENOUS DNA INTRODUCED INTO COLORED COTTON Screening of Drought Tolerant Agronomic Trait Indices of Colored Cotton Varieties (Lines) in Gansu Province Relationship between Super-Molecular Structure Changes and Fiber Quality in Fiber Development Process of Colored Cotton Cultivars SCREENING AND EVALUATION OF DROUGHT TOLERANT INDICES OF COLORED UPLAND COTTON (Gossypium hirsutum L.) IN GANSU Cloning and Bioinformatics Analysis of DFR Gene from Brown Cotton(Gossypium hirsutum L.)Fiber Composition Analysis of Pigment in Colored Cotton Fiber Characteristics of Fiber Quality in Cotton Development and Its Regulation by Hormone in Two Natural Colored-Cotton Cultivars Effect of Drought Stress on Agronomic Traits and Quality and WUE in Different Colored Upland Cotton Cultivars