EVALUATION OF THE EXTRA-LONG STAPLE EGYPTIAN COTTON VARIETY "GIZA 87"

Document Type : Original Article

Authors

Cotton Research Institute, Agricultural Research Center, Giza, Egypt

Abstract

Giza 87 is a new extra-long staple variety of Egyptian cot­ton. It had been introduced by the Cotton Breeding Research Section through artificial hybridization between the two parents Giza 45 and Giza 77 to combine their splendid economic qualities. Giza 87 is characterized with its extra-fine, extra-long and very strong fibers with 35.2 - 37.2 mm 2.5% span length, 17.2 -19.0 mm 50% mean length. 3.4 -3.6 micronair reading, 114 -128 millitex (10-8 g/cm) for hair weight and 2615 -3050 (60s carded) yarn strength. Also the lint percentage about 31-33% and the seed index about 9 gm. This variety may be a suitable substitute of Giza 45 variety. Moreover, it is resistant to fungal Fusarium wilt.