Standardized Descriptors and Rating Scale used for the National Cotton Germplasm Collection

Data provided by USDA-ARS College Station, TX, USA, Nov. 2014 and updated May 2017.
*font green indicates the descriptor has panel image available (to view the panel image, click on the descriptor's name).
 

Descriptor Description Code or Rating Scale
0 1 2 3 4 5 6 7 8 9
Boll Color*   green dark green light green red sun red       seg/off type
Boll Glanding glandless medium light heavy           seg/off type
Boll Nectaries absent present reduced inactive           seg/off type
Boll Pitting   smooth light pitted pitted very pitted         seg/off type
Boll Point   Moderately pointed pointed blunt           seg/off type
Boll Shape   Oval round cone cone-oval         seg/off type
Boll Size   medium large small extra small         seg/off type
Bract Color   green red sun red           seg/off type
Bract Teeth Number   medium many few           seg/off type
Bract Teeth Size none medium small large           seg/off type
Bract Type   normal frego flared recurved         seg/off type
Fruiting Type   normal cluster             seg/off type
Growth Habit   normal spreading prostrate pyramid stovepipe       seg/off type
Leaf Canopy   typical open dense compact         seg/off type
Leaf Color   green red dark red           seg/off type
Leaf Glands glandless medium light heavy           seg/off type
Leaf Hairs   none few moderate hairy very hairy pilose     seg/off type
Leaf Nectaries absent present one of following: one, main vein(1-1), two(1-2), three(1-3), four(1-4), five(1-5) reduced (2)     seg/off type
Leaf Shape   normal okra sub okra super okra laciniate ovate cordate   seg/off type
Leaf Size   medium small large extra small         seg/off type
Lint Color   white cream brown green tan rust off white   seg/off type
Locule #   one two three four five > five     seg/off type
Maturity   not flowering flowering < 1/2 open > 1/2 open complete       seg/off type
Petal Color   cream yellow light yellow red white light blue golden pink seg/off type
Petal Spot none light medium heavy           seg/off type
Photoperiodic Rating no squares squares flowers bolls open bolls         seg/off type
Plant height (m) actual measurement
Pollen Color   yellow cream -- dark yellow orange       seg/off type
Productivity none < 12/plant 13-24/plant 25-36/plant 37-48/plant >48/plant       seg/off type
Seed Fuzz none medium high sparse tufted         seg/off type
Seed Fuzz Color lintless white cream brown green tan rust off white   seg/off type
Seed Type   free semi kidney kidney           seg/off type
Stem Color   green sun red red           seg/off type
Stem Glands glandless medium light heavy           seg/off type
Stem Hair   none few moderate hairy very hairy pilose     seg/off type
Stigma   normal protruding extreme protruding short buried         seg/off type