Intensification of cool dry season vegetable production in the Sudan savanna agro-ecological zone in Mali Targeted journal: Agronomy for Sustainable Development.

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Presentation transcript:

Intensification of cool dry season vegetable production in the Sudan savanna agro-ecological zone in Mali Targeted journal: Agronomy for Sustainable Development Africa RISING West Africa Phase I Legacy Writeshop 12-13 December, 2016 Bamako, Mali Jean Baptiste S Tignegre1, Albert Rouama2, Abdou Tenkouano1, Larbi Asamoah3, Carolone M Sobgui1, Moussa Kanouté1, Keriba Traore1, Alpha S Traoré1. 1AVRDC – The World vegetable Center 2Institut de l’Environnement et de Recherches Agricoles, Burkina Faso (INERA) 3International Institute for Tropical Agriculture Corresponding author email: jean-baptiste.tignegre@worldveg.org

Introduction and objective Dry season vegetable production is source of nutrients and income for household farmers in Southern Mali However, low productivity, insufficient know how, limited access to appropriate varieties, irrigation facilities and good management practices are threats to vegetable production increase in Southh Mali Hypothesis: optimized & sustainable production is achievable with high performing varieties and good crop management practices Objective: Identify high performing technologies for intensification of vegetable monocrops in South Mali

Methodology On-farm okra, African eggplant & tomato trials were initiated in 2014 & 2015 dry seasons for over 120 farmers in Koutiala and Bougouni districts Two improved varieties vs 1 local variety and “improved crop management” vs “local management practice” were tested. Field layout was a factorial “6 treatments of 3 var. x 2 crop manag. practices in RCBD. Each farmer = 1 rep. Data were collected for veg. fruit weight Data analysis: separate site ANOVA, combined AMMI of site x year ANOVA, Finley & Wilkinson stability ANOVA in IBP were used

Main Results and Discussion Figure 1. Graph of interaction sites x years for okra average fruit yield (kg.ha-1) during dry season in Bougouni (2014), Bougouni (2015), Koutiala (2014) and Koutiala (2015) in Mali. Highest performers under intensification Konni IP Koni LP Batoumabe IP Batoumabe LP Local IP Local LP Stable varieties Boug 2014 Boug 2015 Kout 2014 Kout 2015

Main Results and Discussion Figure 2. Graph of interaction sites x years for African eggplant average fruit yield (kg.ha-1) during dry season in Bougouni (2014), Bougouni (2015), Koutiala (2014) and Koutiala (2015) in Mali. Keurb IP Highest performers under intensification L10 IP Keurb LP L10 LP Local IP Local LP Stable varieties Boug 2014 Boug 2015 Kout 2014 Kout 2015

Main Results and Discussion Figure 3. Graphs of interaction sites x years for tomato average fruit yield (kg.ha-1) during dry season in Bougouni (2014), Bougouni (2015), Koutiala (2014) and Koutiala (2015) in Mali. Roma IP Rio Grande IP Roma LP Rio Grande LP Local IP Local LP High performer under intensification Stable variety Boug 2014 Boug 2015 Kout 2014 Kout 2015

Conclusion (i) Okra: Improved okra variety Batoumabe and the local variety were the most stable varieties (0.7<Sensitivity<1). Okra variety Konni was the most unstable variety but it was highly yielding in favorable environments (Sensitivity>1) and therefore recommended for intensification. (ii) African eggplant: The local variety under improved and local practices was the most stable genotype (2949-7094 kg.ha-1). Improved varieties L10 and Keurbine Dao were least unstable but highest performers (5794-23619 kg.ha-1) in favorable environments (sites & years). (iii) Tomato: GxExY was not significant. Improved varieties Rio Grande (2212- 37594 kg.ha-1) and Roma (1750-38156 kg.ha-1) were best than local variety (2058-25625 kg.ha-1) for all sites and years except Koutiala 2014 (severe water shortages), (iv) The crop management practices were similar in their effects on the variety performances for all crops. (v) Yields increased in second year (2015) due to improved capacity of farmers, more and timely availed inputs & equipments.