Abstract
Twelve cotton strains, six glanded and six glandless, with different seed-oil contents, were mated in a full diallel system. All genotypes were evaluated for seed-oil percentage (SO), seed index (SI, mg/seed) and seed-oil index (SOI, mg/seed) to obtain information on the inheritance of these traits and to assess the significance of maternal and reciprocal effects. Data generated from the diallel mating system were additionally divided into two full diallels, glanded and glandless, of six parents each and evaluated by combining ability and diallel analyses.
The results indicated that maternal effects were not statistically significant for any trait, but reciprocal effects were significant for SI and SOI. Additive effects, or general combining ability (GCA), were highly significant in both analyses. Deviations from additivity, or specific combining ability (SCA), were significant for SI and SOI, and for SO in the glanded diallel. Deviations from additivity were not homogeneous over all the genotypes. Only the additive parameter of the genetic analysis for glandless SO was significant. This result indicated that additivity was greater in crosses involving glandless genotypes. Heritability of 0.53 based on GCA values was obtained for SO, which indicated that selection procedures could be applied successfully to change the oil content of cottonseed.
The highest SO parent was glandless, and the glandless genotypic arrays averaged more SO than glanded arrays, indicating that glandless genotypes could be preferred over glanded in breeding for this trait.
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References
FAO Production Yearbook, Vol. 37, United Nations Food and Agricultural Organization, UN, Rome, Italy, 1984.
Wilcke, H.L., 1977. The Advantages of Glandless Cottonseed Meal in Animal Feeds, p. 21–30, in Conf. Proc. Glandless Cotton, Its Significance, Status, and Prospects. USDA, ARS.
Watkins, L.R., 1977, Impact of Gland Pigments Upon Traditional Cottonseed Processing Procedures, p. 10–13, in Conf. Proc. Glandless Cotton, Its Significance, Status and Prospects. USDA, ARS.
Kamal, M.A.M.,Ann. Agric. Sci., Fac. Agric., Ain Shams Univ., Cairo 3:51 (1958).
Kohel, R.J.,Crop Sci. 20:784 (1980).
Shaffer, H.E., and R.A. Usanis, 1969. General Least Squares Analysis of Diallel Experiments. NCSU. Genet. Dept. Res. Rep. No. 1. Raleigh, NC. 61 pp.
Hayman, B.I.,Biometrics 10:235 (1954).
Griffing, B.,Austr. J. Biol. Sci. 9:463 (1956).
Hayman, B.I.,Genetics 45:155 (1960).
Hayman, B.I., Ibid.:789 (1954).
Dunteman, G.H.,Introduction to Linear Models, Sage Publishing, California, 1984.
Wearden, S.,Heredity 19:669 (1964).
Van Heerden, H.G.,Analysis of Seed Components in Upland Cotton and Their Associations With Lint Percentage, PhD dissertation, Texas A&M University, College Station, TX, 1969.
Brown, M.S.,Evolution 5:25 (1951).
Kimber, G.,Nature 19:98 (1961).
Endrizzi, J.E.,Evolution 16:325 (1962).
Percival, A.E. Jr.,Comparison of the Gene Action Controlling Metric Characters in Differing Types of Upland Cotton, Gossypium hirsutumL., PhD dissertation, Texas A&M University, College Station, TX, 1982.
Abd-Alla, S.A.,Inheritance and Interrelations of Some Seedling Disease Escape Characteristics in Cotton, Gossypium hirsutumL., PhD dissertation, Texas A&M University, College Station, TX, 1970.
Al-Rawi, K.M., and R.J. Kohel,Crop Sci. 9:779 (1969).
Gilbert, N.E.G.,Heredity 12:477 (1958).
Sokol, M.J., and R.J. Baker,Can. J. Plant Sci. 57:1185 (1977).
Kohel, R.J.,Survey of Gossypium HirsutumL. Germplasm Collections for Seed-Oil Percentage and Seed Characteristics, ARS-S-187, USDA-ARS, 1978.
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da Silva Ramos, L.C., Kohel, R.J. Seed-oil content of glanded and glandless cottons. J Am Oil Chem Soc 64, 1337–1340 (1987). https://doi.org/10.1007/BF02540793
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DOI: https://doi.org/10.1007/BF02540793