Abstract
The study evaluated the effect of tapping frequency on the productivity of rubber tree clones (PB235, IAN873, GT1 e RRIM600) planted in 1990 at Indianapolis-PR in a 8 x 4 m spacing. Treatments included tapping system in a half spiral every 3, 4 and 5 days. Data (g per tree per month) was collected from November, December and January of 2009/2010 and of 2010/2011 harvest seasons with ten repetitions. Results indicated that clone productivity was independent of tapping frequency.
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