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棉花纤维品质的优劣,对棉纺工艺的成纱强力,纺纱支数高低,条干好坏,疵点多少,以及织物坚牢度,染色均匀度等,都有直接影响。如以长度29毫米和25毫米的棉花织成染色卡其和白细布进行对比。前者较后者零售价增加90%;出口外销,前者较后者换取外汇也可增加63%;棉农的收益亦可增加12%。辽宁省棉区,全年无霜期仅130—150天,无霜期短给棉花育种工作在改良性状方面带来更多困难。早熟性强的品种,产量质量往往不够理想;而优质绒长的,迟熟性又相当
The quality of cotton fiber has a direct impact on the yarn strength of the cotton spinning process, the yarn count, the quality of the yarn, the number of defects and the fabric fastness and dyeing uniformity. For example, it is compared with cotton dyed khaki and white cloth of 29 mm in length and 25 mm in cotton. The former is 90% more than the latter’s retail price. Exports for export, the former can be increased by 63% over the latter in exchange for foreign exchange, and the income of farmers can also increase by 12%. Liaoning Province cotton area, the annual frost-free period is only 130-150 days, frost-free period to the cotton breeding work in the improvement of traits brought more difficulties. Premature varieties, yield quality is often less than ideal; and high-quality velvet long, very late and quite