Developing strategies to alleviate heat stress-induced flower abortion and prevent yield losses in fine and runner beans for commercial growers and for small-holder farmers in Kenya.

为肯尼亚的商业种植者和小农制定缓解热应激引起的花朵败育并防止细豆和红花菜豆产量损失的策略。

• 批准号: 105317
• 金额: $ 89.01万
• 依托单位: PROVENANCE PARTNERS LIMITED
• 依托单位国家: 英国
• 项目类别: BEIS-Funded Programmes
• 财政年份: 2019
• 资助国家: 英国
• 起止时间: 2019 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=105317
• 关键词: Developing; strategies; alleviate; heat; stress

Climate models predict that yields of major crops in Africa will decline by up to 8% by 2020 and 10-20% by 2050. Higher temperatures, exacerbated by decreasing water availability for irrigation, will become the primary threat to fine and runner bean production. New varieties and improved growing practices that increase resilience to combined stresses are needed. Vegpro (Kenya) Ltd (VP) are a major exporter of fine and runner beans, grown both on commercial farms that employ 8,000 local workers, and on 5,000 outgrower sites across Kenya. In hot dry months (Jan-March, July-Sept), a combination of heat and drought stress can reduce yields by 20-30%, and since current mitigation strategies are inconsistent and ineffective, overall losses can reach 50-60% due to a failure to meet commercial product specifications. Lost revenue to VP is estimated at £8.6M p.a., and for VP's 5,000 outgrowers, losses of 33% of annual income are commonplace. We will develop innovative practical solutions that improve plant productivity by 20% and reduce waste by 40% under combined heat and drought stress, generating additional income for the consortium and VP’s outgrowers of £6.6M p.a.. Project outputs will accelerate sustainable intensification on large- and small-holder farms in a changing climate, increasing local food and job security, and improving well-being and social harmony.

到2020年，非洲的主要农作物的气候变化将下降多达8％，到2050年将下降10-20％。灌溉用水的供应将成为对精美豆类生产的主要威胁。需要综合的压力。由于未达到商业产品规格，总损失可以达到50％。在不断变化的气候下，增加了40％和干旱压力的产出将加速对大型和小型农场的可持续性加剧，增加了当地的粮食和工作保障，并改善了幸福感和社会和谐。