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5. Sustainable Agriculture
Climate impact on crops
↑ or ↓ rainfall ↑ temperatures High humidity
Onion Negatively impacted by drought • speeding up bulbing
(Dominica) • bolting and lower yields
Irish Potato • Crop decay: fluctuations in • Increased pest and diseases
(Dominica) yield quality and quantity • Foliar development and delayed
• Reduction in tubers per tuberization
plant with low water in • ↑ Nos of smaller tubers per plant
growing season
Celery, Chive and • Parsley thrives in rich, well watered soils, and yields will decrease even in
Parsley elevated areas of Dominica
(Dominica) • Parsley should be shaded in tropical areas
• Celery and Chives will react as above, with chives being slightly more
tolerant of high temperatures
Hot Pepper • Droughts reduce • Increased susceptibility to diseases • Scotch bonnet susceptible to
(Dominica) nutritional uptake, related to insects, fungi, bacteria and viruses, nematodes, fungi,
infertility and reduced pest/nematodes bacterial wilt
productivity
• Dry periods cause fungi
growth and stems to dry,
wilt, and affect fruit
production
Sustainable Agriculture in the Caribbean (SAC) Project
Slide 72
