RECOMBINATION BETWEEN SUPPOSEDLY HOMOLOGOUS CHROMOSOMES OF GOSSYPIUM BARBADENSE L. AND G. HIRSUTUM L

Gene Flow between Gossypium hirsutum L. and Gossypium barbadense L. is Asymmetric

As both Pima cotton (Gossypium barbadense L.) and Acala (Upland; G. hirsutum L.) are grown in the southwestern United States, understanding gene fl ow within and among these species is important to maintain genetic purity. In small scale and commercial fi elds, gene fl ow decreased exponentially from 1.44% at 1 m to less than 0.50% at 10 m in Acala cotton. Corresponding values for Pima cotton w...

Effect of Chromosome Substitutions from Gossypium barbadense L. 3-79 into G. hirsutum L. TM-1 on Agronomic and Fiber Traits

Sukumar Saha, J.N. Jenkins, J.C. McCarty, Jr., O.A. Gutierrez USDA-ARS, Crop Science Research Lab, P.O. Box 5367, Mississippi State, MS 39762; J. Wu, Department of Plant & Soil Sciences, Mississippi State University, Mississippi State, MS 39762; D. M. Stelly and D. A. Raska, Department of Soil & Crop Sciences, Texas A&M University, College Station, TX 77843-2474; R. G. Percy, USDA-ARS, Maricopa...

Interference between Redroot Pigweed (Amaranthus retroflexus L.) and Cotton (Gossypium hirsutum L.): Growth Analysis

Redroot pigweed is one of the injurious agricultural weeds on a worldwide basis. Understanding of its interference impact in crop field will provide useful information for weed control programs. The effects of redroot pigweed on cotton at densities of 0, 0.125, 0.25, 0.5, 1, 2, 4, and 8 plants m(-1) of row were evaluated in field experiments conducted in 2013 and 2014 at Institute of Cotton Res...

Estimation of genetic parameters for quantitative and qualitative traits in cotton cultivars (Gossypium hirsutum L. & Gossypium barbadense L.) and new scaling test of additive– dominance model

A complete diallel cross of nine cotton genotypes (Gossypium hirsutum L. & Gossypium barbadense L.) viz Delinter, Sindose-80, Omoumi, Bulgare-539, Termez-14, Red leaf (Native species), B-557, Brown fiber and Siokra-324 having diverse genetic origins was conducted over two years to determine the potential for the improvement of yield, its components, oil and fiber qual...

Transformation of Gossypium hirsutum and Gossypium barbadense by Rhizobium rhizogenes: Hairy root induction and gossypol production