Texas Marker‐1. Description of a Genetic Standard for Gossypium hirsutum L.1

An inbred line (TM‐1) was developed at the Texas Agricutural Experiment Station as a standard reference cotton ( Gossypium hirsutum L.) for genetic and cytogenetic experimentation. Its origin and development is described. The results of a performance test of several advanced generations of the inbred were used to characterize the agronomic properties of the line and to evaluate the effects of inbreeding.