Tolérance à la sécheresse du blé dur (<i>Triticum durum</i>Desf.) et identification des paramètres morpho-physiologiques d’adaptation dans la région de Sidi Bel-Abbès (Algérie occidentale)

Aicha, Megherbi; Mehdadi, Zoheir; Toumi, Fouzia Benali; Moueddene, Kada; Bouadjra, Salah Eddine Bachir

doi:10.1080/12538078.2012.673824

Cited by 6 publications

(3 citation statements)

References 2 publications

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“…In general, precocity is a phenomenon that influences the efficiency of water use. As mentioned by Megherbi et al (2012), earliness in heading is also a desirable characteristic. This biological mechanism could be quantified by evasion since the early genotypes can complete their cycle, thus avoiding terminal drought.…”

Section: Discussionmentioning

confidence: 99%

Effect of water stress on the behavior of six durum wheat genotypes in a semi-arid region of western Algeria

Fetati

Mediouni

Benseddik³

et al. 2021

GABJ

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Six genotypes of durum wheat (Triticum turgidum L. subsp. durum (Desf.) Husn.) were investigated under different watering regimes. Phenological and morphological parameters as well as some yield components were monitored. The results showed that: (1) the water deficit significantly affects the height of the plants, the length and the weight of the spikes. (2) Irrigation has a significant effect on all of the yield components. Doses of 39mm at tillering, 60mm at stem elongation and 30mm at heading stage achieved the best yields. (3) Earliness at heading and at maturity is an important factor in determining the adaptation to water stress and in obtaining a good yield. (4) Under favorable irrigation conditions precocious and semi-precocious selected varieties have been shown to be more productive and even adapted to the water stress of the region. (5) The productivity of the durum wheat crop is imperatively based on the choice of a tolerant genotype to the conditions of the region on the one hand and on the use of supplementary irrigation on the other hand, especially at the vegetative stage where the yield component is the most determining, in our case it seems to be the populating spike carried out at the booting stage.

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Section: Discussionmentioning

confidence: 99%

Effect of water stress on the behavior of six durum wheat genotypes in a semi-arid region of western Algeria

Fetati

Mediouni

Benseddik³

et al. 2021

GABJ

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show abstract

“…Considering the random distribution of precipitation in arid to semi-arid regions, the adoption of relatively shortcycle varieties is necessary, this biological mechanism is a desirable feature and could be quantified as evasion since early genotypes can accomplish their cycle through avoiding also terminal drought (Megherbi et al 2012). Nevertheless, the increase in the earliness of cereals, although it has given undeniable results, is not without drawbacks, it contributes, among other things, to the reduction of productivity and is only suitable for late drought and short duration (Melki and Dahmane 2008).…”

Section: Discussionmentioning

confidence: 99%

Assessment of biological and agronomic diversity of seven durum wheat varieties cultivated in the Northeastern region of Algeria

et al. 2021

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Abstract. Boudersa N, Chaib G, Atoui A, Cherfia R, Bouderbane H, Boudour L. 2021. Assessment of biological and agronomic diversity of seven durum wheat varieties cultivated in the Northeastern region of Algeria. Biodiversitas 22: 1025-1036. The present work was carried out during the 2017/2018 agricultural season, at the experimental station of the ‘Institut Technique des Grandes Cultures’ (ITGC) – El Khroub, Constantine, Algeria. The main objective of this study was the evaluation and the characterization of seven varieties of durum wheat (Triticum durum Desf.) in terms of their behavior and yield. For these reasons, several phenological, morpho-physiological, and biochemical traits, as well as the yield with its components were studied. The obtained results showed a significant variety effect, in particular, for the variables corresponding to the production and to the tolerance. The analysis of the correlation coefficients indicated that the number of spikes per m2, the number of grains spike-1, and the rate of chlorophyll pigments in the leaves were the most related characteristics to grain yield. Indirect selection for breeding productivity through these traits could prove to be effective. Besides, it revealed that tall varieties displayed better resistance to possible hazards; had high relative water content (RWC), accumulated more soluble sugars and proline, as well as, they showed a low level of Malondialdehyde (MDA) compared to other varieties. In addition, this study allowed us to determine many relationships between the studied parameters, that can make a contribution in both the productivity and the adaptation improvement programs of the durum wheat.

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“…L'Algérie avec ses caractéristiques topographiques et bioclimatiques qui permettent de montrer une diversité des paysages et des systèmes de cultures, la céréaliculture est la spéculation prédominante de l'agriculture. Elle s'étend sur une superficie annuelle d'environ 3,6 millions d'hectares par rapport a la surface agricole utile (SAU) [1]. Parmi les céréales, le blé dur (Triticum durum Desf.)…”

Section: Introductionunclassified

Etude de la stabilité de quelques variétés de blé dur (triticum durum desf.) dans les conditions semis aride du Sétif

Guendouz¹,

Oulmi²,

Benalia³

2021

Alger. j. biosciences

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Notre objectif est de présenter une synthèse sur l’étude de la stabilité du rendement de dix variétés de blé dur expérimentées pendant quatre ans (2009-2013) dans la région semi-aride de Sétif. Nous utilisons au cours de cette étude trois indices de stabilité paramétriques et non paramétriques pour évaluer les performances des dix génotypes testés. L’étude des indices paramétrique de stabilité, notamment l'écovalence de Wricke (Wi²) a montré que les génotypes Mexicali75 (4.23) et Hoggar (11.07) sont considérés comme les plus stables parmi les dix génotypes testés. Alors qu'en termes d'indice de supériorité (Pi), Polonicum (29,61), Sooty (33,99), Altar84 (34,47) et Mexicali75 (35,37) ont les valeurs les plus faibles de (Pi). L'indice d'adaptabilité géométrique (GAI) a montré que les génotypes Mexicali75 (42,00), Kucuk (40,26) et Altar84 (40,03) sont les plus stables. Les indices non paramétriques Si (2), Si (3), Si (6) ont des corrélations non signifiantes avec le rendement moyen en grains. L’étude de la variabilité génotypique du rendement en grains a montré que Mexicali75 était le génotype qui avait la plus petite variation de rendement au cours des quatre saisons. Globalement, Mexicali75, Hoggar et Kucuk sont les génotypes très stables.

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Tolérance à la sécheresse du blé dur (Triticum durumDesf.) et identification des paramètres morpho-physiologiques d’adaptation dans la région de Sidi Bel-Abbès (Algérie occidentale)

Cited by 6 publications

References 2 publications

Effect of water stress on the behavior of six durum wheat genotypes in a semi-arid region of western Algeria

Effect of water stress on the behavior of six durum wheat genotypes in a semi-arid region of western Algeria

Assessment of biological and agronomic diversity of seven durum wheat varieties cultivated in the Northeastern region of Algeria

Etude de la stabilité de quelques variétés de blé dur (triticum durum desf.) dans les conditions semis aride du Sétif

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