Coffea arabica, one of the economically most important crops worldwide, occurs naturally in the undergrowth of montane rainforests of Ethiopia. The study provides the first detailed ecophysiological investigations of wild coffee populations. It demonstrates the inter- and intra-regional variability in phenotypic and hydrological characteristics of wild coffee. The results reveal very different strategies of wild coffee seedlings for coping with drought stress. The ecophysiological diversity shows the importance of Ethiopian wild coffee populations as gene pools for future breeding programs, and underlines the need for an in-situ conservation strategy. The study includes recommendations for coffee forest management and the use of wild arabica coffee in Ethiopia.

"Enchanting . . . An absorbing narrative of politics, ecology, and economics."--New York Times Book Review (Editors' Choice) Coffee is one of the largest and most valuable commodities in the world. This is the story of its origins, its history, and the threat to its future, by the IACP Award–winning author of Darjeeling. Located between the Great Rift Valley and the Nile, the cloud forests in southwestern Ethiopia are the original home of Arabica, the most prevalent of the two main species of coffee being cultivated today. Virtually unknown to European explorers, the Kafa region was essentially off-limits to foreigners well into the twentieth century, which allowed the world's original coffee culture to develop in virtual isolation in the forests where the Kafa people continue to forage for wild coffee berries. Deftly blending in the long, fascinating history of our favorite drink, award-winning author Jeff Koehler takes readers from these forest beginnings along the spectacular journey of its spread around the globe. With cafés on virtually every corner of every town in the world, coffee has never been so popular--nor tasted so good. Yet diseases and climate change are battering production in Latin America, where 85 percent of Arabica grows. As the industry tries to safeguard the species' future, breeders are returning to the original coffee forests, which are under threat and swiftly shrinking. "The forests around Kafa are not important just because they are the origin of a drink that means so much to so many," writes Koehler. "They are important because deep in their shady understory lies a key to saving the faltering coffee industry. They hold not just the past but also the future of coffee."

This book presents advanced knowledge on the relationships between climate change and agriculture, and various adaptation techniques such as low tillage, salt-adapted beneficial microbes and closed systems. Climate change is unavoidable but adaptation is possible. Climate change and agriculture are interrelated processes, both of which take place on a global scale. Climate change affects agriculture through changes in average temperatures, rainfall and climate extremes; changes in pests and diseases; changes in atmospheric carbon dioxide; changes in the nutritional quality of some foods; and changes in sea level.

Solanum quitoense (Lulo) from the northern Andes is a fruit with an attractive taste. It has a high export potential but its production is hampered by insufficient pollination. Studies on the reproductive system of Lulo revealed that, due to their poricidal anthers, the flowers need pollinators for self- and cross-pollination. Pollination by native bumblebees significantly increases fruit set and quality. Experiments show that colonies of Bombus atratus can be reared in captivity and used in Lulo fields for providing increased pollination services. Modeling based on data on colony development reveal larva/workers ratio and the supply of pollen as main parameters for improving the rearing method.