Genetic variation, heritability and path-analysis in landraces of bread wheat from southwestern Iran

Ehdaie, B.; Waines, J. G.

doi:10.1007/bf00021584

Cited by 64 publications

(15 citation statements)

References 9 publications

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“…This variability could be due to the genetic make-up and environmental effects. These results are in agreement with those obtained by Ehdaie and Waines (1989), who estimated the phenotypic coefficient of variability at 3% and the genotypic coefficeint of variation at 2.9% for heading date, Rady et al, (1981), Dawla (1984) and Hanna et al, (1996) reported that G.C.V values ranged from 2.29 to 6.57% compared to P.C.V which ranged from 11.78 to 29.67% for grain yield/plant.…”

Section: -Genotypic Performance and Variabilitysupporting

confidence: 93%

“…Similar results were obtained by Anwar and Chowdhry (1969), Sidwell et al, (1976). Rady et al, (1981) also reported broad sense heritability value of 69.80% for spikelets/spike, Ehdaie and Waines (1989), Al-Kaddoussi and Eissa (1990), reported that broad sense heritability values ranged from 51.90 to 90.6% for No. of spikes and from 22.40 to 65.5% for spike length, Hassan 1993, El-Marakby et al, 1993 high heritability values in broad sense which ranged from 82.77 to 91.81% for kernels/spike and from 77.62 to 99.70% for 100-kernel weight.…”

Section: -Genotypic Performance and Variabilitysupporting

confidence: 72%

“…Thereby during the past few years plant breeders have given special attention to the study of world collections of different species to maximize genetic variability and to identify superior genotypes for use in plant breeding programs. Previous studies made on wheat provided useful indication about variability for several traits such as Baker et al, 1968;Rady et al, 1981;El-Shouny et al, 1987;Ehdaie and Waines 1989;El-Marakby et al, 1992a and1994;Shehab El-Dine 1997;El-Seidy and Hamada 1997;Ibrahim 1994 andMondal et al, 1997. The present work was conducted to study the genetic variability of eighty three genotypes derived from different crosses for two seasons including parents and check varieties. The relative performance for each genotype was accounted.…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of Different Bread Wheat Lines in the F6 and F7 Generation for Grain Yield and Its Attributes

2000

Journal of Plant Production

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This investigation was carried out to evaluate 66 wheat lines derived from five crosses of bread wheat along with their seven parents and ten check cultivars giving a total of 83 genotypes. The 66 lines were evaluated in the F 6 and F 7 generations in 1995/96 and 1996/97 seasons, respectively. Statistical analysis showed highly significant differences for all studied traits in the two seasons except kernels weight/spike in the second season. Six lines were earlier in heading date as compared to their parents and the check cultivars in both seasons. With regard to grain yield performance, the lines numbered 49 and 53 gave higher yields in both seasons, while line 46 outyielded all genotypes in the first season but failed to be stable in the second. The highest values of phenotypic and genotypic coefficients of variation were recorded in the two seasons for grain yield /plant followed by kernels weight/spike. Estimates of heritability in the broad sense were high for all studied traits in the two seasons except spikes/plant and spikelets/spike which were moderate in the second season. Phenotypic correlation cofficients showed positive and significant relationship between grain yield/plant and each of heading date, plant height, spikes/plant and 1000-kernel weight.

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Section: -Genotypic Performance and Variabilitysupporting

confidence: 93%

Section: -Genotypic Performance and Variabilitysupporting

confidence: 72%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Evaluation of Different Bread Wheat Lines in the F6 and F7 Generation for Grain Yield and Its Attributes

2000

Journal of Plant Production

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“…Identification of potential genotypes and related attributes on variability is an important step in wheat breeding. The development of high-yielding wheat cultivars is a major objective in wheat breeding programs (Ehdaie and Waines, 1989). Yield is a complex trait, is a function of several component traits and their interaction with the environment (Khairnar et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Multivariate analysis and role of direct–indirect effect for yield and its component traits in bread wheat (Triticum aestivum L.)

2022

EJPB

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“…Mediterranean cereal landraces are adapted to the region where they were grown for up to ten thousand years [31][32][33]. Genetic heterogeneity and continuous evolution enabled landraces coping with the changing conditions and evolving adaptive features to survive under the predominant environmental challenges [32,[34][35][36].…”

Section: Introductionmentioning

confidence: 99%

Root Trait Diversity in Field Grown Durum Wheat and Comparison with Seedlings

et al. 2021

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Roots are important for crop adaptation, particularly in dryland environments. We evaluated root development of 37 durum wheat genotypes (modern cultivars and landraces) in the field at the adult plant stage, through a shovelomics approach. Large genotypic variability was found for root traits. Differences between the landraces and modern cultivars were the main driver of this variation, with landraces showing higher plant vigor for roots and shoots. Nonetheless, genotypic variation within groups was also observed, related to different models of root growth, largely independent of total root length. These two models represented root growth were oriented either to occupy more soil volume, or to occupy less soil volume with increased density. The field results were then compared with root data previously collected in seedlings using a filter paper-based method, to assess whether early root anticipated adult root features. Field plants showed a narrower root angle than seedlings. In particular, landraces presented a narrower root angle than cultivars, but only at seedling stage. Potentially useful correlations were found between the two growth stages for root length and number.

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Genetic variation, heritability and path-analysis in landraces of bread wheat from southwestern Iran

Cited by 64 publications

References 9 publications

Evaluation of Different Bread Wheat Lines in the F6 and F7 Generation for Grain Yield and Its Attributes

Evaluation of Different Bread Wheat Lines in the F6 and F7 Generation for Grain Yield and Its Attributes

Multivariate analysis and role of direct–indirect effect for yield and its component traits in bread wheat (Triticum aestivum L.)

Root Trait Diversity in Field Grown Durum Wheat and Comparison with Seedlings

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