|Moser, H - UNIV OF AZ, MARICOPA, AZ|
Submitted to: National Cotton Council Beltwide Cotton Conference
Publication Type: Proceedings
Publication Acceptance Date: June 1, 1998
Publication Date: N/A
Technical Abstract: Yield potentials of extra-long staple Pima cotton (Gossypium barbadense L.) have increased in the past 50 years due, in part, to breeding and selection efforts for high lint production and heat tolerance. However, little is known about changes in vegetative, reproductive, and growth characteristics that have occurred concurrent with yield increases. The objective of this study was to characterize changes in vegetative, reproductive, and growth characteristics in a successive series of Pima cultivars. Pima 32, PS-3, PS-4, and PS-7 (released in 1948, 1966, 1966, and 1991, respectively) were grown in replicated tests at Maricopa, AZ (low desert, 358 m elev.) and Safford, AZ (884 m elev.) in 1996 and 1997.