scholarly journals Profils morpho-biometriques de la poule locale du Burkina Faso

2020 ◽  
Vol 14 (6) ◽  
pp. 2240-2256
Author(s):  
S. Pinde ◽  
A.S.R. Tapsoba ◽  
M. Sanou ◽  
F.G. Traore ◽  
R.W. Ouedraogo ◽  
...  
Keyword(s):  
Burkina Faso ◽  
Phenotypic Variability ◽  
Principal Component ◽  
Phenotypic Characterization ◽  
Accurate Identification ◽  
Ecological Zones ◽  
Large Size ◽  
Dimorphisme Sexuel ◽  
Rational Management ◽  
Agro Ecological Zones

Au Burkina Faso les informations sur la poule locale sont rares entrainant des difficultés objectives de son exploitation rationnelle. Un total de 948 individus (692 femelles et 256 mâles) provenant de 251 élevages reparties dans les 3 zones agro-écologiques du Burkina Faso a été évalué pour 13 traits corporels quantitatifs et 09 qualitatifs dans le but de caractériser la variabilité phénotypique de la poule locale. Il ressort 13 coloris de plumage avec le blanc (19,16%) et l’herminé (16,75%) comme couleurs dominantes. Le site et le sexe ont eu une influence (p<0,05) sur les traits corporels analysés. L’Analyse en Composante Principale révèle l’existence de 2 sous-populations: une souche légère de petit gabarit (0,91 kg) dans les trois zones agro-écologiques et une souche lourde de grand gabarit (1,37 kg) dans les zones soudano-sahélienne et soudanienne, laissant présager des différences d’adaptation liées aux facteurs environnementaux. Un dimorphisme sexuel en faveur des mâles a été observé au niveau du poids vif moyen (1,64 kg vs 1,14 kg), de la longueur du corps (42,16 cm vs 37,30 cm) et du périmètre thoracique (29,01 cm vs 25,96 cm). Les résultats rapportés dans cette étude serviront de base pour l’élaboration de programmes de développement basés sur une exploitation rationnelle de la poule locale.Mots clés : Caractérisation phénotypique, poules locales, zones agro-écologiques, Burkina Faso.   In Burkina Faso, information on poultry genetic resources is scarce and this scenario does not allow an accurate identification and management strategy for this species. A total of 948 individuals (692 females and 256 males) belonging to 251 different household, accros the 3 agro-ecological zones of Burkina Faso have been assessed for 13 quantitative traits and 9 qualitative traits in order to characterize phenotypic variability of local poultry. The most frequent plumage colors are white (19.16%) and hermine (16.75%) out of 13 different coulors identified. The site and the sex of the individuals had a statistically significant influence (P <0.05) on the 13 body measurements analyzed. Principal Component Analysis reveals the existence of 2 subpopulations in the 3 agro-ecological zones, a light hen with small size (0.91 kg) and a heavy and large size hen (1.37 kg), almost encountered in Sudan-Sahel and Sudan areas, suggesting differences in adaptation due to environmental factors. A sexual dimorphism was observed in favor of the males considering bodyweight (1,64 kg vs 1,14 kg), body length (42.16 cm vs 37.30 cm) and the Heart girth (29.01 cm vs 25.96 cm for females). The results reported in the current study will be useful for the establishment of breeding programme based on rational management of local poultry in Burkina Faso.Keywords : Phenotypic characterization, local hens, agro-ecological zones, Burkina Faso.  

scholarly journals Towards Understanding Variability in Droughts in Response to Extreme Climate Conditions over the Different Agro-Ecological Zones of Pakistan

2021 ◽  
Vol 13 (12) ◽  
pp. 6910
Author(s):  
Adil Dilawar ◽  
Baozhang Chen ◽  
Arfan Arshad ◽  
Lifeng Guo ◽  
Muhammad Irfan Ehsan ◽  
...  
Keyword(s):  
Pearson Correlation ◽  
Principal Component ◽  
Mitigation Strategies ◽  
Precipitation Extremes ◽  
Climate Mitigation ◽  
Mean Annual Temperature ◽  
Climate Extreme ◽  
Ecological Zones ◽  
The Mean ◽  
Agro Ecological Zones

Here, we provided a comprehensive analysis of long-term drought and climate extreme patterns in the agro ecological zones (AEZs) of Pakistan during 1980–2019. Drought trends were investigated using the standardized precipitation evapotranspiration index (SPEI) at various timescales (SPEI-1, SPEI-3, SPEI-6, and SPEI-12). The results showed that droughts (seasonal and annual) were more persistent and severe in the southern, southwestern, southeastern, and central parts of the region. Drought exacerbated with slopes of −0.02, −0.07, −0.08, −0.01, and −0.02 per year. Drought prevailed in all AEZs in the spring season. The majority of AEZs in Pakistan’s southern, middle, and southwestern regions had experienced substantial warming. The mean annual temperature minimum (Tmin) increased faster than the mean annual temperature maximum (Tmax) in all zones. Precipitation decreased in the southern, northern, central, and southwestern parts of the region. Principal component analysis (PCA) revealed a robust increase in temperature extremes with a variance of 76% and a decrease in precipitation extremes with a variance of 91% in the region. Temperature and precipitation extremes indices had a strong Pearson correlation with drought events. Higher temperatures resulted in extreme drought (dry conditions), while higher precipitation levels resulted in wetting conditions (no drought) in different AEZs. In most AEZs, drought occurrences were more responsive to precipitation. The current findings are helpful for climate mitigation strategies and specific zonal efforts are needed to alleviate the environmental and societal impacts of drought.

scholarly journals Assessment of sixteen varieties of groundnut in two agro ecological zones in Burkina Faso for yield and tolerance to aflatoxin

2021 ◽  
Vol 17 (1) ◽  
pp. 66-78
Author(s):  
MININGOU Amos ◽  
Appolinaire TRAORE Sy ◽  
KABRE Blaise ◽  
Ardjouma Lassina Moulaye KONATE Sondé
Keyword(s):  
Burkina Faso ◽  
Ecological Zones ◽  
Agro Ecological Zones

scholarly journals Agro-morphological characterization of Bambara nut accessions [Vigna subterranea (L) Verdcourt] from Burkina Faso

2020 ◽  
Vol 153 ◽  
pp. 15727-15744
Keyword(s):  
Burkina Faso ◽  
Phenotypic Variability ◽  
Morphological Diversity ◽  
Morphological Characters ◽  
Morphological Characterization ◽  
Vigna Subterranea ◽  
Breeding Programs ◽  
Ecological Zones ◽  
Total Variability

Objectives: The agro morphological diversity of Bambara nut remains poorly understood. In this study 90 Bambara nut accessions were assessed for phenotypic variability of agronomic and morphological traits. Methodology and results: A trial was conducted at Rollo (Bam province) on 90 accessions of Bambara nut of 3 agro ecological zones in Burkina Faso. Accessions were evaluated on 27 morphological characters. Result of qualitative traits analysis showed dominance of cream-coloured seeds, butterfly-grey eyes, and smooth yellowish-brown pods. The majority of quantitative traits were discriminant at 1%. The completed PCA indicates that the first two axes expressed 55.60% of the total variability. The dendogram highlighted four groups of diversity. Conclusion and application of results: The agro morphological characterization showed great variability within the accessions studied. The different associations between yield components and the clustering into classes could be exploited in breeding programs for improvement of Bambara nut productivity. RESUME Objectifs: La diversité agro morphologique du pois bambara reste mal connue. Dans cette étude, la variabilité phénotypique des caractères agronomiques et morphologiques de 90 accessions de pois bambara a été évaluées. Méthodologie et résultats: Un essai a été conduit à Rollo (Province de Bam) sur 90 accessions de pois bambara issues de quatre zones agro-écologiques du Burkina Faso. Les accessions ont été évaluées sur 27 caractères morphologiques. Les résultats de l’analyse des caractères qualitatifs ont montré la dominance des graines de couleur crème, des yeux gris papillon et des gousses lisses brun jaunâtre. La majorité des Caractères quantitatifs étaient discriminants à 1%. L'ACP indique que les deux premiers axes ont exprimé 55, 60% de la variabilité totale. Le dendrogramme a mis en évidence quatre groupes de diversité. Kambou et al., J. Appl. Biosci. 2020 Agro-morphological characterization of Bambara nut accessions [Vigna subterranea (L) Verdcourt] from Burkina Faso 15728 Conclusion et application des résultats: La caractérisation agro morphologique a montré une grande variabilité au sein des accessions étudiées. Les différentes associations entre les composantes du rendement et la subdivision en classes pourraient être exploités dans les programmes de sélection pour l'amélioration de la productivité du pois bambara. Mots clés: Pois bambara, caractères morphologiques, variabilité

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