Growth study on 9 timber species planted in Bangladesh soils revealed that 6 species fall under wooden electric pole yield group-A, produce 33% poles within 10 years, another 33% within 15 years and additional 33% within 20 years of rotation. Two species under yield group-B produce 33% poles within 15 years and another 33% within 20 years. One species under yield group-C produce at best 25% poles within 15 years and 50% poles within 20 years of plantation, considered to be unsuitable for pole production compared to the species under group A and B. Large scale plantation with timber species under yield group-A is recommended for pole production.

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