川苎4号是从大红皮自交后代中筛选出的优良单株,经过多年培育而成的新品种。1987—1989年连续三年的区域试验结果表明,平均比对照红皮小麻增产50.8％,平均单纤支数1941m/g;1989—1991年连续三年五县七点生产试验表明,平均比对照增产24.78％,平均单纤支数为1970m/g。该品种属中根散生型,在长江流域表现为中熟,头、二、三麻工艺生长天数分别为80～85天,45～50天,60～65天,且有较强的抗旱、抗花叶病特性。 Chuanzhuo 4 is an excellent single plant selected from the offspring of self-pollination and cultivated for many years. From 1987 to 1989, the results of regional trials for three consecutive years showed that on average, the yield increased by 50.8% and the average single fiber count was 1941 m / g compared with the control. The seven-year production experiment at five counties from 1989 to 1991 showed that the average ratio Control yield 24.78%, the average single fiber count of 1970m / g. The variety is a root-mean-genotype rooted in the Yangtze River Basin showed medium maturity, head, two, three Ma process growth days were 80 to 85 days, 45 to 50 days, 60 to 65 days, and have strong drought resistance Mosaic disease characteristics.