COTTON LINT GRADE COMPONENTS AS RELATED TO YARN PHYSICAL PROPERTIES | ||
| Egyptian Journal of Agricultural Research | ||
| Volume 71, Issue 2, June 1993, Pages 481-491 PDF (2.65 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ejar.1993.459042 | ||
| Authors | ||
| AHMED E. M. YOUSEF; MONUER G. SIEF; SAMER H. M. EL-HARIRY; ALAA S. I. MARZOOK | ||
| Cotton Research Institute, Agricultural Research Centre, Giza, Egypt | ||
| Abstract | ||
| The present investigation was carried out on six Egyptian cotton varieties namely; Giza 45, Giza 76, Giza 70 (Extra - long staple ) , Giza 81, Giza 75 and Dendara ( Long - staple ) to study the relative contribution of grade components to grade index and the relationship between trash cottont %, percent reflectance (Rd%), degree of yellowness ( +b), microniare reading, grade index and yarn physical properties i. e, yarn irregularity (c, v. %), thin places , thick places , nep count and yarn appearance grade. The results showed that , (1) Rd% was the most contributer to lint grade in all varieties except in Giza 45 and Giza 70 varieties where the best contributer was +b and trash content % respectivly . (2) The relationship between yarn physical properties and each of lint grade index and grade components were highly significant in all the studied varieties. | ||
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