Friday, January 12, 2007 - 11:15 AM

The Evaluation and Inheritance of Several Traits Associated with Lint Percent in Cotton

E. Margaret Hamill1, Delbert Hess1, and J. R. Gannaway2. (1) Bayer CropScience, 6508 FM 40, Lubbock, TX 79401, (2) Texas Agricultural Experiment Station, Rt. 3, Box 219, Lubbock, TX 79403

There seems to be a lack of clear understanding of the relationship of with-in boll components, lint percent and yield. Ten cultivars both elite and obsolete were selected to be intercrossed in a half-diallel mating scheme. The first year of data was collected on parents. The characteristics that were measured were the with-in boll components and fiber properties. The second year of data was collected on the parents, the resulting F1 populations and F2 populations of the diallel mating scheme. A second location was planted so fifty individual plant selection could be collected out of each F2 population. All non-destorying data was collected on each of the plant selections. Ten plants with the highest lint percent and ten plants with the lowest lint percent were identified and sent to winter nursery for increase. In the final year of testing the parents, F1 populations, F2 populations and the F2 derived F4 lines were tested in two locations. All the same data was collected for this final set of data. The data from the first two years and the individual plant selection will be presented.

Recorded presentation