ABSTRACT
The photoperiodic strain, T25, has been shown to contain several traits potentially useful in dryland cotton production. In 1973, a cross was made between T25 and Lubbock Dwarf to incorporate the flowering response in T25 germplasm. Following a backcross and six generations of selection, T25 germplasm was yield tested in 1982 and released in 1983. Seedcotton yields for the released germplasm were excellent, but lint percent and lint yields were lower than the commercial checks. To improve the released strains, mass selections based on visual plant productivity were made in 1984, 1985, 1986 and 1987. The first cycle of mass selections was yield tested in 1985, and showed significant improvement in lint yield fiber properties and lint percentages. Additional tests grown in 1986, showed continued improvements for lint yield and gin turnout.
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