Diallel cross in plant breeding

Gilbert, Neil

doi:10.1038/hdy.1958.48

Cited by 104 publications

(67 citation statements)

References 23 publications

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“…High heterosis might be obtained with parents of diverse origin in the presence of adequate favorable environment for expression of heterosis and in the absence of mutual cancellation of components of heterosis. Generally parents with high order of expression of the characters, when combined, produced hybrids with high expression (Gilbert, 1958).…”

Section: Resultsmentioning

confidence: 99%

Heterosis studies for yield and fiber quality traits in intra hirsutum hybrids of cotton (<italic>Gossypium hirsutum</italic> L.)

Srinivas

Bhadru

2015

ASD

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The present study was performed to evaluate the heterosis effects for seed cotton yield and fiber quality traits of 56 hybrids and their parents involving seven lines and eight testers along with a check at Acharya N.G. Ranga Agricultural University, Hyderabad. The results showed that, range of relative heterosis varied from -3.40 to 13.29 in ginning percentage, -5.28 to 14.10 in 2.5% span length, -8.72 to 8.25 in uniformity ratio, -16.39 to 14.88 in micronaire value, -5.97 to 10.02 in bundle strength and -32.57 to 113.40 in seed cotton yield per plant, where, highest number of crosses (24) with significant mid parental heterosis in desirable direction was observed for seed cotton yield per plant followed by 2.5 % span length (16) and ginning percentage (12). Desirable and significant heterosis over better parent was observed in the crosses for all the studied characters except for uniformity ratio. A good number of crosses recorded significant standard heterosis over check for all the studied parameters except for uniformity ration and micronaire value. Apart from showing considerable level of heterosis for seed cotton yield, the crosses AKH 9331 x HAG 1055 exhibited good level of heterosis for ginning percentage, Galama x L 604 and Galama x JK 344 for uniformity ratio, Galama x HAG 1055, AKH 9331 x HAG 1055 and CPD 420 x IC 356932 for 2.5% span length and CPD 420 x JK 344 and BC 68-2 x LK 861 for bundle strength. So these crosses could be exploited to improve the yield along with one or more fiber quality traits through heterosis breeding.

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Section: Resultsmentioning

confidence: 99%

Heterosis studies for yield and fiber quality traits in intra hirsutum hybrids of cotton (<italic>Gossypium hirsutum</italic> L.)

Srinivas

Bhadru

2015

ASD

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“…The above treatment of environmental variation, similar to Hayman's (1954), is useful for diallel experiments arranged in balanced com- One of these assumptions, namely the one which states that genes are independently distributed across the parents, has been most criticised (Gilbert, 1958;Feyt, 1976;and Baker, 1978). In its simplest formulation, this assumption may be written as in (1.1), but having n loci we need at least 2' parents to obtain a non-trivial theoretical situation in which (1.1) is satisfied (Feyt, 1976).…”

Section: Environmental Variationmentioning

confidence: 99%

“…This methodology, presented in a series of papers (Jinks and Hayman, 1953;Hayman, 1954; and Jinks, 1954), has been reviewed by several authors (Gilbert, 1958;Nassar, 1965;Feyt, 1976;Baker, 1978) who criticised the validity of its assumptions and analysed the consequences of their failure. These assumptions are: (a) diploid segregation, (b) no difference between reciprocal crosses, (c) no non-allelic interaction, (d) no multiple allelism, (e) homozygous parents and (f) genes independently distributed across the parents.…”

Section: Introductionmentioning

confidence: 99%

A new look at Jinks–Hayman's method for the estimation of genetical components in diallel crosses

Ferreira

1988

Heredity

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A new interpretation of the assumption which states that genes are independently distributed across the parents leads to the construction of new estimates of the genetical components D, H1, H2 and F. Simulation experiments are used to compare the new estimates with the classical ones and with an improved (unbiased) version of those estimates. The new estimates show a better behaviour than their competitors in terms of bias and mean square deviation, especially for small diallels.

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“…Shimna and Ravikesavan (2008) advised that the per se performance of hybrids appeared to be a useful index in judging them. Gilbert (1958) suggested that parents with good per se performance would result in good hybrids. 27 g), VS-9-S11-1 x KC3 (188.93 g), African I-2 x TCH 1705-250 (178.80 g), F-2617 x TCH 1608 (170.07 g) and VS-9-S11-1 x TCH 1608 (168.33 g).…”

Section: Mean Performancementioning

confidence: 99%

Combining Ability and Heterosis Studies on Yield and Fibre Quality Traits in Upland Cotton (Gossypium hirsutum L.)

Monicashree¹,

Balu²,

Gunasekaran³

2017

Int.J.Curr.Microbiol.App.Sci

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Diallel cross in plant breeding

Cited by 104 publications

References 23 publications

Heterosis studies for yield and fiber quality traits in intra hirsutum hybrids of cotton (<italic>Gossypium hirsutum</italic> L.)

Heterosis studies for yield and fiber quality traits in intra hirsutum hybrids of cotton (<italic>Gossypium hirsutum</italic> L.)

A new look at Jinks–Hayman's method for the estimation of genetical components in diallel crosses

Combining Ability and Heterosis Studies on Yield and Fibre Quality Traits in Upland Cotton (Gossypium hirsutum L.)

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