Papers by Abdellah Ouassou
Genetic variations in plant height, internode and coleoptile length were investigated in durum wh... more Genetic variations in plant height, internode and coleoptile length were investigated in durum wheats of diverse origin. Generation mean analysis was performed on mean data derived from seven durum wheat cultivars and derived populations (F1, F2, B1, and B2) grown at two locations in 1987 in Morocco, to determine the relative importance of the gene effects influencing plant height, internode and coleoptile length. Significant differences were observed for all internode lengths in tall and semidwarf parents. The height reduction in semidwarfs resulted from shortening all internodes, especially the lower internodes, IN3 and IN4. The peduncle contributed 40% to 50% of the plant height in semi-dwarfs, and 35% and 38% in tall cultivars. For all traits, additive effects predominated and ranged from 61% to 87% of the total variation for plant height and internodes length. For spike length, only the additive effects were significant and accounted for 43%. With minor expectations, additive, dominance, and to a lesser extent, additive x additive epistatic effects (aajj$\sp\prime),$ were important in controlling each of the traits studied. Additive effects were more susceptible to changes in the environment more than dominant effects while aajj$\sp\prime$ were relatively stable over both locations except for plant height. The genetic parameter estimates indicated the best line for the desired plant height morphology was Cocorit, which had high negative additive contribution for plant height and lower internodes (IN2, IN3 and IN4) and positive additive contribution in its progenies for length of the uppermost internodes. For coleoptile length, significant genetic variability was present in the seven parents. Only additive effects were significant for this character (83% of the total variation). Narrow sense heritability for all crosses averaged 25.6%. The tall cultivars would have a significant additive contribution for increasing coleoptile length of their progenies while the semidwarf cultivars would generally, but not always reduce coleoptile length. Hence not all semidwarfs have a negative contribution for coleoptile length of their progenies
Les microsatellites (SSR s), marqueurs codominants et très polymorphes, sont utilisés dans cette ... more Les microsatellites (SSR s), marqueurs codominants et très polymorphes, sont utilisés dans cette étude préliminaire pour vérifier l'introgression génétique entre le chêne-liège (Quercus suber L.) et le chêne vert (Q. rotundifolia (Lamk.) Trabut) cohabitant dans quelques subéraies marocaines du Moyen-Atlas et du Haut-Atlas. Cinq locus microsatellites chloroplastiques, issus de chênes européens, ont été utilisés pour cette analyse. Seulement trois locus microsatellites ont révélé un polymorphisme élevé et parmi eux un seul locus a montré un échange du génome chloroplastique entre les deux espèces. Mots clés : Maroc, Quercus suber, introgression génétique, microsatellites, Quercus rotundifolia. Contribution to the study of the genetic intogression between Quercus suber L. and Q. rotundifolia (Lamk.) Trabut in Morocco by the use of microsatellite markers. Abstract. Simple sequence repeats (SSR s) or microsatellites, codominant and highly polymorphic markers, are tested in this prele...
Bulletin de la Société Botanique de France. Actualités Botaniques, 1990
Breeding for heat and drought tolerance in bread wheat by means of field and laboratory screening... more Breeding for heat and drought tolerance in bread wheat by means of field and laboratory screening procedures by Basilio BORGHI(l), Maria CORBELLINI(l), Pia GAVUZZI(l), Gaetano BOGGINI(2) and Abdellah OUASSOU(3) (1) Experimentalln.
Agricultures, 2008
... Auteur(s) : Bakhiyi Belghazi, Mustapha Ezzahiri, Abdellah Ouassou, Mounia Achbah, Sidi Mohame... more ... Auteur(s) : Bakhiyi Belghazi, Mustapha Ezzahiri, Abdellah Ouassou, Mounia Achbah, Sidi Mohamed El Yousfi, Tarik Belghazi , École nationale forestière d'ingénieurs (Enfi), BP 511, Salé, Maroc, Institut agronomique et vétérinaire Hassan II, Institut Agronomique et Vétérinaire ...
Severely stricken by successive periods of drought, Morocco has made desertification control, dro... more Severely stricken by successive periods of drought, Morocco has made desertification control, drought mitigation, and environment protection, in general, top priorities in its socio-economic development.
The laws with regard to water management were seriously reviewed in 1995. The Administration is s... more The laws with regard to water management were seriously reviewed in 1995. The Administration is still largely in charge of the formulation of water policies. The consultative institutions issue recommendations and approve plans; while the stakeholders control over municipal water through the Local Authorities, which work under the supervision of the Ministry of Interior. However, slow change is taking place. When the drought cycle is over, the activity of the national inter-government committee is abandoned. Should the drought recur, the same procedures are reproduced regardless the results of the previous drought episode. There is however a renewed political will to move away from this crisis management to a more proactive drought management approach. This has been activated in 2001 by the creation of the National Drought Observatory in the form of an institutional network of representative stakeholders working on drought issues; the support of the insurance policy plans; and water saving operations. A methodology of drought characterization, risk analysis and vulnerability assessment in agricultural system is presented for Oum Er Rbia river basin.
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Papers by Abdellah Ouassou