The current cocoon number checking system adapted to correct adjustment of integral chain may avoidfluctuation of reeling cocoon number per thread but fail to ensure desirable raw silk size due to the effectsof sensing system and low cocoon and low cocoon supplier efficiency on raw silk, which are overlooked in the system .

The customhouse’s test result about raw silk export show that raw silk size quality is a key factor affecting raw silk degradation, in order to improve raw silk quality, it is .

Through comparing the requirement of the existent and the new standards for raw silk,the influence of the new standard on the size indexes was expounded in this paper.

The typical one step reclaim technology and future developement of reclaim technique were discussed extensively, Especially in making fine titred fiber.

The method of joint analyses of multiple generations with P1,P2,F1 and F2 of major gene plus polygene mixed inheritance model was used to analyze the genetics of fiber fineness related traits in the study.

Relatively higher expression existed in high fiber fineness germplasms and the relatively lower expression existed in low fiber fineness germplasms.

The stable BC2F4:6,BC2F4:7 lines,which were obtained from combination between 34B and Giza70 and backcrossed with 34B as recurrent parent,were used to analyse the correlation of fiber fineness related traits under three environments.

Nondestructive estimation of fiber length from hard wood by near infrared spectroscopy;

The effect of cellulase on fiber length and polymerization degree of mixed office waste;

Study on the effective cotton planting of good quality and high output in South China Ⅰ.Effect of variety and sowing date on fiber length;