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不同年代育成的品种农艺性状和纤维品质是根据当时的自然和社会条件选择的,并呈现一定的变化规律,研究品种演变规律对棉花育种目标的制定、亲本选配和后代选择具有重要的意义。本试验通过同一控制条件下对不同年代育成的有代表性棉花品种进行比较,研究棉花品种的遗传演变进展及
The agronomic traits and fiber quality of varieties bred at different ages were selected according to the natural and social conditions at the time, showing certain regularities of variation. It is of great significance to study the evolution of cultivars on the formulation of breeding objectives, selection of parents and future generations. In this experiment, we compared the representative cotton varieties bred in different age under the same control conditions to study the genetic evolution of cotton varieties and