Characterization of Old And Recent Durum Wheat [Triticum turgidum (L.) Tell. convar. Durum (Desf.) Mackey] Varieties Assessed under South Mediterranean Conditions

Rabti, Aboubakr; Mekaoussi, Radhia; Fellahi, Zine El Abidine; Hannachi, Abderrahmane; Benbelkacem, A.; Benmahammed, Amar; Bouzerzour, H.

doi:10.21608/agro.2020.43329.1230

Cited by 7 publications

(10 citation statements)

References 19 publications

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“…Under the growth conditions of Algerian semi-arid regions, wheat genotypes with shorter cycle are less subject to drought and early heat stress (Rabti et al, 2020;Haddad et al, 2021).…”

Section: Predicted Selection Gain From Direct and Indirect Selectionmentioning

confidence: 99%

Efficiency of index-based selection for potential yield in durum wheat [Triticum turgidum (L.) ssp. turgidum convar. durum (Desf.) Mackey] lines

Hannachi

Fellahi

2023

Ital J Agronomy

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Wheat is a socioeconomically important crop in Algeria. Improving genetic gain of quantitative traits through selection is at the core of every successful breeding program. Selection is usually performed on grain yield, but other agronomically related characteristics can also help increase genetic gain through indirect or multi-trait selection. The objective of this work was to quantify genetic parameters and compare the efficiency of direct, indirect and simultaneous selection methods in terms of predicted genetic values of wheat progenies. For this purpose, 418 F4-derived lines were evaluated for six agronomic traits including heading date, flag leaf area, plant height, number of spikes, thousand kernel weight and grain yield in an augmented block design with three check varieties. Wide genetic variation with moderately high broad-sense heritability were observed for the recorded traits, except for heading date. The results from genetic gain revealed variation in gains for assessed traits and breeding methods employed. The classic index of Smith and Hazel (SHI) demonstrated a similar genetic gain in grain yield compared to gain from direct selection. Generally, the selection-based index showed the highest responses considering all traits simultaneously with a slight inferiority of the SHI index. The coincidence rates among the evaluated indices were higher than those obtained between the measured traits. Based on the comparisons between the selected lines, the SHI index and the selection base index of Williams were similar to grain yield and can reach up to 79.51% coincidence of breeding lines identified by these selection criteria. Breeding lines L252, L34, L24, L130 and L413 were the most common individuals identified according to number of coincidences from the different selection methods used. Of these, L34 and L24, and to a lesser extent L15 can be considered promising wheat lines for improving grain yield.

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“…Under the growth conditions of Algerian semi-arid regions, wheat genotypes with shorter cycle are less subject to drought and early heat stress (Rabti et al, 2020;Haddad et al, 2021).…”

Section: Predicted Selection Gain From Direct and Indirect Selectionmentioning

confidence: 99%

Efficiency of index-based selection for potential yield in durum wheat [Triticum turgidum (L.) ssp. turgidum convar. durum (Desf.) Mackey] lines

Hannachi

Fellahi

2023

Ital J Agronomy

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“…Breeding to enhance the potential yield of wheat genotypes through this trait has been reported as a promising approach both in dryland and irrigated conditions (Mohammadi et al, 2012). In their studies, Rabti et al (2020) and Mekaoussi et al (2021) showed that the GY of durum wheat depended on biomass, NS, TKW, number of kernels per spike, and harvest index under rainfed environments. Their results also pointed out that physiological traits had negligible direct effects and small indirect effects on GY by biomass, NS, and harvest index.…”

Section: Path Analysismentioning

confidence: 99%

Assessing the phenotypic variation, heritability and genetic advance in bread wheat (Triticum aestivum L.) candidate lines grown under rainfed semi-arid region of Algeria

Lamara

Fellahi

Hannachi

et al. 2022

Rev. Fac. Nac. Agron. Medellín

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The genetic improvement of any breeding population largely depends upon the magnitude of genetic variability present. This study was carried out to estimate parameters of the genetic variation among 13 quantitative traits of bread wheat evaluated at INRAA-Setif institute (Algeria) during the 2020–2021 crop season in a rainfed environment. 34 genotypes including four control checks were planted in a randomized complete block design with three replications. Genotypes showed significant variations for almost all the studied traits. Proline content, spikes weight, and grain yield exhibited a high genotypic coefficient of variation along with moderate to high heritability coupled with a high genetic gain, suggesting the implication of additive gene action. The number of spikes, spikes weight, and thousand kernel weight were significantly and positively correlated with grain yield at both phenotypic and genotypic levels. Path analysis results showed that spikes weight is an important route through which most of the measured traits influenced indirectly grain yield. Lines L1, L20, L28, L16, and L18 exhibited a sizeable grain yield advantage, which suggests they are potential candidates for future release and could be incorporated into the wheat breeding programs as parents to improve yield in the rainfed environments of Algeria

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“…In fact, crop residues are usually not burned but either maintained to protect soil from wind erosion or grazed and straw is balled, stored and fed to livestock during the winter months (Annichiarico et al, 2005;Chenaffi et al, 2011). In this context plant height, a straw yield correlated trait, is seen as an important characteristic influencing cultivars adoption under such growing conditions (Rabti et al, 2020;Jatayev et al, 2020;Haddad et al, 2021). Because of their straw yield advantage, tall varieties, derived from land-races, are still cultivated and not replaced by newly released reduced height cultivars (Rabti et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

“…In this context plant height, a straw yield correlated trait, is seen as an important characteristic influencing cultivars adoption under such growing conditions (Rabti et al, 2020;Jatayev et al, 2020;Haddad et al, 2021). Because of their straw yield advantage, tall varieties, derived from land-races, are still cultivated and not replaced by newly released reduced height cultivars (Rabti et al, 2020). For a full expression of their potential, dwarf wheat varieties need to be grown in favorable, well-watered conditions which permit application of relatively high levels of nitrogen fertilizer which is usually not the case in arid and semi-arid environments.…”

Section: Introductionmentioning

confidence: 99%

“…For a full expression of their potential, dwarf wheat varieties need to be grown in favorable, well-watered conditions which permit application of relatively high levels of nitrogen fertilizer which is usually not the case in arid and semi-arid environments. This type of plant material becomes, under drought stress conditions, too short, yielding less than tall varieties, showing reduced flag leaf area, kernel size, kernel Zn, Fe, Mg and Mn concentration, coleoptiles, and roots length (Aziz et al, 2017;Velu et al, 2017;Jatayev et al, 2020;Rabti et al, 2020). Positive relationship between plant height and grain yield, under drought stress growing conditions, implied that there is a minimum height below which grain yield limitation becomes evident (Slafer et al, 2005;Royo et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

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Inheritance of plant height, straw yield and flag leaf area in MBB x Gaviota durum wheat (Triticum durum Desf.) cross

Salmi

Fellahi²,

Benbelkacem³

et al. 2021

AAS

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Plant height, straw mass and flag leaf area are recognized by physiologists as morphological markers of drought stress tolerance. Developing varieties intended for arid and semi-arid zones need to select for these traits. Understanding the genetic control of a given trait helps breeder to handle the segregating populations under study in a more efficient and consistent manner by choosing the best breeding method available to realize significant genetic advance. For this purpose, six generations: parents, F1, F2, BC1, BC2, derived from MBB x ‘Gaviota’ durum wheat (Triticum durum Desf.) cross were grown to investigate the nature of gene action involved in the inheritance pattern of the three traits. The results indicated that the six-parameter model fitted the best the data related to the variability present in the generation means of the studied traits. Generation mean analysis indicated that non-allelic interactions were important factors controlling the expression of these characters with complementary type of gene action governing FLA and STW inheritance. High heritability estimates, moderate to high expected responses to selection, significant genetic correlations with grain yield and greater role of non-additive effects in controlling the inheritance of the three studied traits suggested that breeding methods exploiting both fixable and non-fixable components be applied to break unfavorable linkage and to accumulate useful genes in the base population, followed by mono-trait or index based selection in late advanced generations.

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Characterization of Old And Recent Durum Wheat [Triticum turgidum (L.) Tell. convar. Durum (Desf.) Mackey] Varieties Assessed under South Mediterranean Conditions

Cited by 7 publications

References 19 publications

Efficiency of index-based selection for potential yield in durum wheat [<em>Triticum turgidum</em> (L.) ssp. <em>turgidum convar. durum</em> (Desf.) Mackey] lines

Efficiency of index-based selection for potential yield in durum wheat [<em>Triticum turgidum</em> (L.) ssp. <em>turgidum convar. durum</em> (Desf.) Mackey] lines

Assessing the phenotypic variation, heritability and genetic advance in bread wheat (Triticum aestivum L.) candidate lines grown under rainfed semi-arid region of Algeria

Inheritance of plant height, straw yield and flag leaf area in MBB x Gaviota durum wheat (Triticum durum Desf.) cross

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