Download or read book The Effect of Metaxenia on the Fiber Length of an American Upland Gossypium Hirsutum Cotton Hybrid written by Raymond Cran Bond and published by . This book was released on 1943 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effect of Metaxenia on the Fiber Length of an American Upland Gossypium Hirsutum Cotton Hybrid written by Raymond Cran Bond and published by . This book was released on 1943 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Inheritance of Length of Fiber in American Upland Cotton written by Calvin Clyde Murray and published by . This book was released on 1945 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Inheritance of Staple Length in Upland Cotton Gossypium Hirsutum L and Its Interrelationships with Perimeter Wall Thickness and Weight of Fiber written by Jesus Velez Fortuno and published by . This book was released on 1954 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Genetic Study of Fiber Length in American Upland Cotton written by Le Grand West Sloane and published by . This book was released on 1955 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Variability of Fiber Length in an Inbred Line of American Upland Cotton written by Pundarik S. Pandya and published by . This book was released on 1948 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Agronomic and Fiber Characteristcs of Upland Cotton gossypium Hirsutum L as Affected by Hill Spacing Plants Per Hill and Plant Populations written by B.S. Hawkins and published by . This book was released on 1972 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Inheritance of Certain Fiber Properties in Upland Cotton Gossypium Hirsutum L as Evaluated by Methods of Statistical Genetics written by Kenneth Warren Tipton and published by . This book was released on 1969 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Study of Heterosis and Natural Crossing in Upland Cotton written by Jack Earl Jones and published by . This book was released on 1950 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation of Effects on Agronomic and Fiber Characters Associated with the Gland determining Loci in Upland Cotton Gossypium Hirsutum L written by George Louis Hosfield and published by . This book was released on 1968 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Genetic Analysis of Length and Perimeter of Fiber in American Upland Cotton written by Richard Dix Breaux and published by . This book was released on 1951 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Genetic Improvement of Upper Half Mean Length and Short Fiber Content in Upland Cotton Gosspium Hirsutum written by Benjamin Beyer and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Desired base upper half mean length (UHML) of upland cotton (G. hirsutum) in the U.S. has been set a 27.0 mm and is shorter than the standard set by the international community. Upland cotton genotypes from China, South Africa, West Africa, and the U.S. were test crossed to an extra long staple upland (ELSU) and a short staple upland (SSU) and selected genotypes that included both ELSU and MSU phenotypes were crossed in a half-diallel mating scheme to estimate general combing ability (GCA) effects and specific combining ability (SCA) effects. A recombinant inbred line (RIL) population was established to determine the narrow sense heritability (h^2) of AFIS short fiber content by weight (SFCw) and lower half mean length (LHML) and to estimate SFCw using HVI fiber properties. Obsolete cultivars from China are not likely sources for UHML improvement, cultivars from Africa and the U.S. could harbor alleles not being used in current elite short staple cultivars or modern ELSU cultivars. Two ELSU lines used in this study derived through interspecific hybridization with G. barbadense could contain alleles for UHML improvement in modern ELSU cultivars developed without any apparent G. barbadense introgression. A third line D & PL 45-867, might contain alleles for UHML improvement in long staple upland cotton genotypes. Narrow sense heritability estimates indicated a much higher heritability of LHML than AFIS SFCw. Correlation between AFIS SFCw and LHML did not agree with previous studies when using an ELSU X MSU cross. Further study is needed to understand this complex relationship.

Download or read book Incidence of Natural Hybridisation and Responses to Selection in American Upland Cotton Gossypium Hirsutum L in Queensland written by Vincent Edward Mungomery and published by . This book was released on 1970 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Structure of Genetic Diversity in Upland Cotton Gossypium Hirsutum L Cultivars and Dissecting the Components of Hybrid Cotton Yield written by Priyanka Tyagi and published by . This book was released on 2013 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation of the Genetic Gain in Upland Cotton During the Twentieth Century written by Brian Matthew Schwartz and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Genetic gain studies in the past have been used to evaluate the historical improvement of different traits and give insight into what magnitudes of gain might be possible in the future. Additionally, they have been carried out to defend the role of genetics during periods of stagnant or decreasing yield trends. This study was conducted over a 2-year period (2003 and 2004) and included nine current or obsolete cotton (Gossypium hirsutum L.) cultivars grown in 5 plant densities designed to evaluate varying levels of interplant competition. Plant densities were single plant culture with plants spaced 3m x 3m, 2m x 2m, 1m x 1m, 1m x 0.3m, and two commercial populations with plants spaced 1m x 0.1m. Results were analyzed for each trait to determine whether genetic gains are interrelated with tolerance to interplant competition or strictly under genetic control. The rates of genetic gain for lint yield were highest in the 1m x 0.1m, 1m x 0.3m, and 1m x 1m treatment with slopes of 8.7, 8.2, and 7.1 kg ha−1 yr−1 respectively. The slopes were each significantly smaller in the 2m x 2m and 3m x 3m spaced populations with gains of 3.6 and 1.5 kg ha−1 yr−1 respectively, implying that for lint yield, genetic gains have been made for tolerance to interplant competition. Similarly, modern maize hybrids only out perform obsolete hybrids at higher plant densities. Genetic gain for lint yield, fiber length, fiber strength, and fiber micronaire made in the context of tolerance to interplant competition is due in large part to the excellent performance of Deltapine 491 (2002) at higher plant populations.

Download or read book Fiber Quality Improvement of Upland Cotton Gossypium Hirsutum L from Targeted Interspecific Sources Using Introgression Lines and Exotic Upland Germplasm with the Aid of Marker assisted Introgression written by Ismael Nino Brown and published by . This book was released on 2017 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: An apparent stagnation of fiber quality improvement in Upland cotton (Gossypium hirsutum) is likely due to a limited priority by breeders to improve fiber quality, exacerbated by limited genetic diversity for fiber quality within G. hirsutum. Increasing competition from man-made fibers such as polyester has put additional impetus for improvement of cotton fiber quality. Extensive genetic resources exist, however, from which valuable alleles for fiber quality can be mined. In addition to divergent, unadapted, or even wild G. hirsutum, valuable QTLs have been identified in other related species within the Gossypium genus. These interspecific sources of fiber quality represent an underutilized resource within the available gene pool of G. hirsutum. While numerous QTL have been mapped and identified in interspecific populations or introgression lines, few have been verified or have progressed to the point of introgression into adapted material. This dissertation seeks to address some of these topics by examining QTL identified from interspecific sources, their interaction with elite, divergent genetic backgrounds, their genotype by environment interactions, and their application in cotton improvement.

Download or read book A Study of the Effect of Pollen Upon the Length of Cotton Fibers written by E.H. Pressley and published by . This book was released on 1937 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: