'frees contribute a major part of fuel, fodder and fruit, and are an im of bioenergy. They are now needed in large numbers more portant source than ever before

The origin and development of the oil palm industry. The botany of the oil palm. The climates and soils of the oil palm regions. Factors affecting growth, flowe

The oil palm is the world's most valuable oil crop. Its production has increased over the decades, reaching 56 million tons in 2013, and it gives the highest yi

Major tree crops contribute substantially to the economy of many developing countries on the Asian, African and Latin American continents. For example, coffee i