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Identifying Extra Long Staple Suitable Lines (
Gossypium barbadense
L) Improved Fiber Qualities
7
Regression coefficient between F
5
and F
3
generations
was estimated as heritability value using
multiplicative factor of 2/3 or 0.67. Heritability
estimates were computed for entire population of
selected progenies for all the characters. Based on
breeding, coefficients of the generations were
involved in regression analysis.
The heritability estimates were categorized according
to Robinson
et al.
(1949) and given below: 0%~30% -
Low; 30%~60% - Moderate; 60% and above – High.
References
Akumuradov S., and Chapau A., 1992, Response of varieties to
irradiation, Khlopok., 1: 36-38
Cahaner A., and Hillet J., 1980, Estimating heritability and
genetic correlation between traits from generations F
2
and
F
3
of self fertilizing species: A comparison of three
methods.
Theor. Appl. Genet.
, 58: 33-38
http://dx.doi.org/10.1007/BF00264666
Dever J.K., and Gannaway J.R., 1992, Relative fibre uniformity
between parents and F
1
and F
2
generations in cotton, Crop
Sci., 32:1402-1408
http://dx.doi.org/10.2135/cropsci1992.0011183X00320006
0019x
Mehla A.S., Mor B.R., and Naidu M.R., 1988, Genetic analysis
of earliness characters in upland cotton
(G. hirsutum
L.), Crop Improv., 15: 156-159
Mirakhamedov S., Stakov V., and Rakhimov M., 1987,
Transgressive selection for fibre length, Khlopkovodstvo.,
7
: 30-33
Munasov K., Alikho Dzhaeva S.S., and Lemeshev N.R., 1990,
Variability and heritability of fibre length F
1
-F
3
hybrids
and their parents, Refretivinya Zhurnal.,
9
: 3378
Robinson H.F., Comstock R.E., and Harvey .H., 1949,
Estimates of heritability and degree of dominance in corn,
Agron. J., 41: 353-359
http://dx.doi.org/10.2134/agronj1949.00021962004100080
005x
Simongulyan N.G., and Kim V.L., 1990, Variation in
quantitative characters I an irradiated cotton population,
Genetika., 26(10): 1815-1821
Tagiev A.A., 1991, Variation in cotton induced by chemical
mutagens. In:
Khimicheskii Mutagene Selecletsii.
, pp.
214-217
Vaman B.M., Nadarajan N., and Pater S.D., 1985, A note on the
evaluation of genetic stock of
Gossypium barbadense
L.
Madras
. Agri. J.,
72
: 116-117
Vande N.N., and Thombre M.V., 1983, Variability studies in
Egyptian cotton, Cotton Improv., 13(1): 3
Virk P.S., Kalsy H.S., Virk D.S., and Pooni H.S., 1991, An
assessment of the breeding potential of a
Gossypium
hirsutum
L., Crop Improv., 18: 7-13
Cotton Genomics and Genetics