Recent climate analyses show trends for increasing precipitation variability with increasing precipitation sums in Mali. The increasing occurrence of temporary intra-seasonal droughts and waterlogging longer than a week demands climate-smart solutions. Research has focused on water deficits since the 1980s. However, besides droughts, waterlogging can restrict productivity of sensitive cash and staple crops as cotton and corn. The year 2019 offered the historically unique opportunity to monitor waterlogging effects with 1088 mm precipitation in the rural commune Cinzanawith an isohyet of 681 mm. Impacts of two extreme downpours on three sorghum cultivars were monitored in a farmers-field experiment with three replications. All sorghum cultivars performed well in 2019 with significantly higher grain and above ground biomass yields than in the reference year 2007, with well distributed rainfall in Cinzana. “Jakumbe” (CSM63E) produced significantly higher grain yields than the hybrid cultivar “PR3009B” bred for high harvest index. The local cultivar “Gnofing” selected by local farmers produced significantly higher above ground biomass. All cultivars tolerated without severe stress symptoms 20 days waterlogging and 72 h inundation. Further waterlogging resilience research of other crops and other sorghum cultivars is needed to strengthen food security in Mali with expected increasing precipitation variation in the future.

中文翻译：

---

西非苏丹-萨赫勒地区三个高粱品种在降雨过多和涝渍条件下的表现：以马里 Cinzana 气候智能型村庄为例

最近的气候分析显示，随着马里降水总量的增加，降水变异性增加的趋势。临时性季节性干旱和超过一周的内涝越来越多，需要气候智能型解决方案。自 1980 年代以来，研究一直集中在缺水问题上。然而，除了干旱之外，内涝还会限制棉花和玉米等敏感经济作物和主粮作物的生产力。2019 年提供了历史上独一无二的机会，以 1088 毫米的降水量监测 Cinzana 农村公社的内涝影响，等雨线为 681 毫米。通过三个重复的农民田间试验监测了两次极端倾盆大雨对三个高粱品种的影响。所有高粱品种在 2019 年表现良好，谷物和地上生物量产量明显高于 2007 年参考年，Cinzana 降雨分布均匀。“Jakumbe” (CSM63E) 的谷物产量明显高于为高收获指数培育的杂交品种“PR3009B”。当地农民选择的当地品种“Gnofing”产生的地上生物量明显更高。所有品种均能耐受 20 天涝渍和 72 小时淹水，无严重胁迫症状。需要对其他作物和其他高粱品种进行进一步的抗涝研究，以加强马里的粮食安全，预计未来降水变化会增加。“Jakumbe” (CSM63E) 的谷物产量明显高于为高收获指数培育的杂交品种“PR3009B”。当地农民选择的当地品种“Gnofing”产生的地上生物量明显更高。所有品种均能耐受 20 天涝渍和 72 小时淹水，无严重胁迫症状。需要对其他作物和其他高粱品种进行进一步的抗涝研究，以加强马里的粮食安全，预计未来降水变化会增加。“Jakumbe” (CSM63E) 的谷物产量明显高于为高收获指数培育的杂交品种“PR3009B”。当地农民选择的当地品种“Gnofing”产生的地上生物量明显更高。所有品种均能耐受 20 天涝渍和 72 小时淹水，无严重胁迫症状。需要对其他作物和其他高粱品种进行进一步的抗涝研究，以加强马里的粮食安全，预计未来降水变化会增加。