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F300-Génétique et amélioration des plantes
F303-Variation des caractères : génotype ; pnhénotype, caractères physiologiques, vigueur, adaptation, résistance, hétérosis, aptitude à la combinaison F303-Variation des caractéres:génotype;phénotype, caractères physiologiques, vigueur, adaptation, résistance, hétérosis, aptitude à la combinaison
Ouvrages de la bibliothèque en indexation F300-Génétique et amélioration des plantes
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Field crops research, vol.226. Adaptation strategies to climate change using cotton (Gossypium Hirsutum L.) ideotypes in rainfed tropical cropping systems in Sub Saharian Africa. A modeling approch [texte imprimé] / E. Gerardeaux, Auteur ; Romain Loison, Auteur ; Oumarou Palai, Auteur ; B Sultan, Auteur . - Amsterdam ((NL)) : Elsevier, 2018 . - pp. 38-47, ill. Langues : Anglais ( eng) Catégories : | SCIENCES ET PRODUCTIONS VEGETALES
| Mots-clés : | CMS, CROPGRO, Coton, Modélisation des plantes, Idéotype, Cultivar, Date de semis | Index. décimale : | F300-Génétique et amélioration des plantes | Résumé : | Developing cultivars with adaptive traits to improve sustainability in the face of climate change is an important option for climate smart agriculture. The CROPGRO-cotton model was calibrated and evaluated at two locations in Cameroon over a period of two years using two planting dates and four contrasted cultivars. The model was used to assess yield gains by modifying plant traits such as specific leaf area, photosynthetic capacity and crop phenology. The ideotype was tested in conventional and conservation agriculture systems and under baseline and future climate conditions. The results revealed that, compared to existing cultivars, the ideotype requires longer to reach maturity and has thicker leaves with good photosynthetic capacity. In 2050 in North Cameroon, climate change will shorten time to maturity and cause a shift in the rainy season but neither change will have an effect on yields. Simulations with an ensemble of climate models revealed that models that assume higher rainfall predicted lower yields, suggesting that N leaching is a more important constraint than drought in North Cameroon. Our results will help cotton breeders select promising new traits to introduce in their cultivars for adaptation to climate changes in Cameroon and to similar sub-Saharan soil, cropping systems and climatic conditions. |
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CT1900018 | F300-GER | Article scientifique | CRA/Tamba | Dépot numérique | Exclu du prêt |
Documents numériques
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Journal of Plant Pathology. Evidence of pathogenic variation in Sclerospora graminicola populations from pearl millet growing regions in Senegal [texte imprimé] / Ghislain KANFANY, Auteur ; Amadou Fofana, Auteur ; Pangirayi Tongoona, Auteur ; Agyemang Danquah, Auteur ; Samuel Offei, Auteur ; Eric Danquah, Auteur ; Ndiaga Cissé, Auteur ; Yedomon Ange Bovys Zoclanclounon, Auteur ; Cheikh Thiaw, Auteur . - Thi-s (Sénégal) : ISRA/CERAAS, 2017 . - 12 p. Langues : Anglais ( eng) Langues originales : Anglais ( eng) Catégories : | SCIENCES ET PRODUCTIONS VEGETALES
| Mots-clés : | Mil | Index. décimale : | F300-Génétique et amélioration des plantes | Résumé : | Downy mildew of pearl millet induced by Sclerospora graminicola is a major disease that causes significant yield losses in most pearl millet production areas worldwide. The pathogenic variability of S. graminicola populations from four agro-ecological zones in Senegal was assessed under field conditions. A set of 19 pearl millet lines, including 12 downy mildew-resistant differential lines with five improved cultivars and two local checks was evaluated during two consecutive rainy seasons (2015 and 2016) at Bambey, Nioro, Kolda and Sinthiou, representing the main pearl millet-growing zones of Senegal. Significant differences were observed among the tested lines, pathogen origin, year and their interactions for resistance to S. graminicola. Except for ICMR 356 and 7042 S, the downy mildew-resistant differential lines differed in their resistance to the pathogen from
the four agro-ecological zones over the years, providing evidence that the S. graminicola isolates represented different races of the pathogen. Among the locations where the experiments were established, the highest average of downy mildew incidence over the two years was recorded at Nioro (18.7 ± 2.6%), Kolda (17.6 ± 1.8%) and Bambey (12.1 ± 2.3%), while the mean downy mildew incidence was lowest at Sinthiou (6.9 ± 2.9%). This finding indicated that populations of pathogen from Kolda, Nioro and Bambey are more virulent compared to the one from Sinthiou. |
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CN1800025 | F300-KAN | Publication | CNRA/Bambey | Rayons | Exclu du prêt |
Documents numériques
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CN0102974 | F300- NDI | Diplôme | CNRA/Bambey | Rayons | Exclu du prêt |
Documents numériques
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Mémoire (fin d'étude). Transfert du système génique contrôlant l'insensibilité au photopériodisme pour la floraison chez le mil (pennisetumamericanum (L.)K. Schum) : incidence sur quelques caractères architecturaux et agronomiques du parent recurrent sensible [texte imprimé] / N.D. Yagoua, Auteur . - (SN) : ORSTOM, [s.d.] . - 24 p. : : tabl., 2 graph. Langues : Français ( fre)
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CN0103075 | F300-YAG | Diplôme | CNRA/Bambey | Rayons | Exclu du prêt |
Documents numériques
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CN0102966 | F300- BON | Diplôme | CNRA/Bambey | Rayons | Exclu du prêt |
Documents numériques
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