Adaptation au climat de variétés de mil et de sorgho dans le Nord-Est du Sénégal : croisement des paramètres pluviométriques, thermiques et phénologiques
Millet (Pennisetum glaucum) and sorghum (Sorghum bicolor) are the main rainfed cereals grown in North-Eastern Senegal. However, faced with constraints such as falling rainfall, rising temperatures and frequent dry spells, their production is tending to decline. This article examines the climatic con...
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Physio-Géo
2025-03-01
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| Online Access: | https://journals.openedition.org/physio-geo/17946 |
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| author | Awa Amadou Sall Elhadji Faye Pierre Guillemin Oumar Konté Mehdi Saqalli |
| author_facet | Awa Amadou Sall Elhadji Faye Pierre Guillemin Oumar Konté Mehdi Saqalli |
| author_sort | Awa Amadou Sall |
| collection | DOAJ |
| description | Millet (Pennisetum glaucum) and sorghum (Sorghum bicolor) are the main rainfed cereals grown in North-Eastern Senegal. However, faced with constraints such as falling rainfall, rising temperatures and frequent dry spells, their production is tending to decline. This article examines the climatic constraints and other shocks suffered by rainfed millet varieties Souna 3, ICTP 8203, GB 8735, Gawane and Chakti, as well as those as sorghum CE 180-33, Payenne and Golobé, which are the main varieties released and currently grown in north-eastern Senegal. Based on data collected in Podor, Matam and Linguère, the article analyses the adaptation of different millet and sorghum varieties to climatic condition and their evolution over time The results show a rainfall deficit since the early 1970s, combined by greater thermal constraints. Analysis of the differences between cumulative rainfall and maximum evapotranspiration for varieties at different growth stages reveals constant water deficits for Souna 3 millet and CE 180-33 sorghum. In contrast, Chakti millet shows positive water balances in over 80% of years in the east and west of the study area, and in 47% of cases in the north. Only Chakti and ICTP 8203 are adapted to the climatic conditions of the eastern and western zones, with a probability of suitability of over 80% for the periods 1931-1969 and 1999-2020. However, none of the varieties is adapted to the climatic conditions in the north. In addition to these climatic constraints, the interviewed farmers attribute the decline in agricultural production to livestock straying, attacks by bird pests and parasitic infestations. exacerbate agricultural losses. It is therefore essential to develop complementary strategies including wider dissemination of varieties better adapted to current climatic conditions, such as Chakti and ICTP 8203, and the strengthening of crop protection systems, notably through biological control and integrated pest management. |
| format | Article |
| id | doaj-art-226c0310e8e74c84a7a5a1e8cee7e7e5 |
| institution | DOAJ |
| issn | 1958-573X |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Physio-Géo |
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| series | Physio-Géo |
| spelling | doaj-art-226c0310e8e74c84a7a5a1e8cee7e7e52025-08-20T03:08:31ZengPhysio-GéoPhysio-Géo1958-573X2025-03-012112510.4000/13gk4Adaptation au climat de variétés de mil et de sorgho dans le Nord-Est du Sénégal : croisement des paramètres pluviométriques, thermiques et phénologiquesAwa Amadou SallElhadji FayePierre GuilleminOumar KontéMehdi SaqalliMillet (Pennisetum glaucum) and sorghum (Sorghum bicolor) are the main rainfed cereals grown in North-Eastern Senegal. However, faced with constraints such as falling rainfall, rising temperatures and frequent dry spells, their production is tending to decline. This article examines the climatic constraints and other shocks suffered by rainfed millet varieties Souna 3, ICTP 8203, GB 8735, Gawane and Chakti, as well as those as sorghum CE 180-33, Payenne and Golobé, which are the main varieties released and currently grown in north-eastern Senegal. Based on data collected in Podor, Matam and Linguère, the article analyses the adaptation of different millet and sorghum varieties to climatic condition and their evolution over time The results show a rainfall deficit since the early 1970s, combined by greater thermal constraints. Analysis of the differences between cumulative rainfall and maximum evapotranspiration for varieties at different growth stages reveals constant water deficits for Souna 3 millet and CE 180-33 sorghum. In contrast, Chakti millet shows positive water balances in over 80% of years in the east and west of the study area, and in 47% of cases in the north. Only Chakti and ICTP 8203 are adapted to the climatic conditions of the eastern and western zones, with a probability of suitability of over 80% for the periods 1931-1969 and 1999-2020. However, none of the varieties is adapted to the climatic conditions in the north. In addition to these climatic constraints, the interviewed farmers attribute the decline in agricultural production to livestock straying, attacks by bird pests and parasitic infestations. exacerbate agricultural losses. It is therefore essential to develop complementary strategies including wider dissemination of varieties better adapted to current climatic conditions, such as Chakti and ICTP 8203, and the strengthening of crop protection systems, notably through biological control and integrated pest management.https://journals.openedition.org/physio-geo/17946climatic variabilityrainfed cropmilletsorghumNorth-Eastern Senegal |
| spellingShingle | Awa Amadou Sall Elhadji Faye Pierre Guillemin Oumar Konté Mehdi Saqalli Adaptation au climat de variétés de mil et de sorgho dans le Nord-Est du Sénégal : croisement des paramètres pluviométriques, thermiques et phénologiques Physio-Géo climatic variability rainfed crop millet sorghum North-Eastern Senegal |
| title | Adaptation au climat de variétés de mil et de sorgho dans le Nord-Est du Sénégal : croisement des paramètres pluviométriques, thermiques et phénologiques |
| title_full | Adaptation au climat de variétés de mil et de sorgho dans le Nord-Est du Sénégal : croisement des paramètres pluviométriques, thermiques et phénologiques |
| title_fullStr | Adaptation au climat de variétés de mil et de sorgho dans le Nord-Est du Sénégal : croisement des paramètres pluviométriques, thermiques et phénologiques |
| title_full_unstemmed | Adaptation au climat de variétés de mil et de sorgho dans le Nord-Est du Sénégal : croisement des paramètres pluviométriques, thermiques et phénologiques |
| title_short | Adaptation au climat de variétés de mil et de sorgho dans le Nord-Est du Sénégal : croisement des paramètres pluviométriques, thermiques et phénologiques |
| title_sort | adaptation au climat de varietes de mil et de sorgho dans le nord est du senegal croisement des parametres pluviometriques thermiques et phenologiques |
| topic | climatic variability rainfed crop millet sorghum North-Eastern Senegal |
| url | https://journals.openedition.org/physio-geo/17946 |
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