Authors
1 Research Institute of Forests and Rangelands
2 -
Abstract
Because of the importance of plant that are able to produce rubber in the world, one project was performed on the adaptation of five cultivars of guayule in Iran. The germination methods and the suitable time and cultivation conditions were studies. Then the gaining seedling transported to main yeild. The studies showed that all of the cultivars were adjusted to their local agro-climatic and the cultivar of p6 had the maximum survived (100% in the first year and 78.1% in the second year). The main stem diameter was the highest in p3 (2.3 cm) in the first year and it observed in p and p3 in the second year (2.9 cm). The most periphery growth and the hight observed in p3 and po cultivars at the first and second years.
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