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Inexpensive Mass Propagation Techniques for Introducing Improved Potato Varieties in the Tropics

Dr. Tapani Haapala

Potatoes (Solanum tuberosum) contain high-quality food properties and are very good protein and energy sources on a daily per hectare basis of production (Frusciante et al. 2000). Potatoes are grown mostly in cool climate areas. In the tropics, they easily suffer from several different kinds of stress related to hot climate, which sometimes ends up causing problems such as attacks of fungal diseases. New potato varieties that are better adapted to hot climates could enable development of potato production in the tropics and could potentially provide livelihood opportunities for small-scale farmers. However, providing enough stock material to meet the potential need could be challenging.

Comparing Locally Available Waste By-Products as Feedstocks for Gasifier Cook-Stoves

Elliot Carey, Patrick Trail, Kenneth Brown, Ph.D., & Abram Bicksler, Ph.D.

In many developing world households, meeting the daily energy needs required for cooking is burdensome and costly. Fortunately, low-cost cooking methods that require less fuel while burning more cleanly and efficiently are becoming available at the household level. One such method is the household gasifier cook-stove, designed to convert small amounts of carbon-based solid biomass (usually from waste or low-cost material) into combustible gases used for cooking (see Dr. Dussadee’s work for information on how gasifier stoves work (2013)).