一 一个优良的棉花品种,不但是适应性和抗逆性强的丰产品种,而且还須具备一定标准的纤維长度、强度、細度、整齐度等工艺性能。高产、优质是一个品种的遺传特性,从品种上来提高棉花的产量和品质是有确切保証的,而且不需要較多的投資,因此种植良种在提高产量和品质上是一个既有效而又經济的方法。 An excellent cotton variety is not only a high-yielding variety with strong adaptability and resistance, but also must meet certain standards such as fiber length, strength, fineness, and uniformity. High yield and high quality are the genetic characteristics of a variety. It is ensured that the yield and quality of cotton are improved from the variety, and does not require more investment. Therefore, it is an effective and economical way to increase the yield and quality of planting seeds. Methods.