ISHS Acta Horticulturae 811: VI International Congress on Cactus Pear and Cochineal
CACTUS PRODUCTION IN YEMEN FROM NEGLECTED TO A CASH CROP |
| Authors: | M. Al-Nusairi, I. Muharram, P. Felker |
| Keywords: | Opuntia ficus-indica L., platyopuntiae, climate |
| Abstract:
Yemen is located in the south west Arabian peninsula and is one of the oldest agricultural civilizations as evidenced by archaeological excavations, remnants of irrigation structures and terraces. (Varisco, 1987) Yemen is situated in the northern stretches of tropical climate zone. The temperature varies greatly to extreme differences in the elevation. The annual temperatures range from less than 15°C in the highlands region to 40°C in the coastal plains and to 45°C in the eastern plateau (Desert and semi desert areas). The rainfall is highly erratic in time, quantity and location. It occurs in two periods, the first from early March through May, the second from July until September, but there are exceptions in certain regions and years. Rainfall varies from less than 50 mm in the coastal region and desert plateau, to more than, 1200 mm in the western mountainous highlands (Al-Khurasan, 2005). The country can be divided into three climates:
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