A field experiment was conducted to rejuvenate cashew plantations by limb pruning. The trees of Ullal-1 variety at Agricultural Research Station, Chintamani were limb pruned at different heights of limbs during September, 2006. The treatments showed significant variation in the nut yield during all the three years. Among the different heights of pruning, the trees pruned at 1 1/2 m height from the main stem recorded the highest nut yield/tree (3.15 kg) and cumulative nut yield (5.44 kg/tree from three harvests) followed by 1 m and lowest was recorded in 3 m height under maidan parts of Karnataka, August-September are the ideal months to take up limb pruning. Limb pruning of trees at 1 1/2 m height proved to be the most effective for rejuvenation and obtained higher yields of unproductive cashew plantations of improved varieties/hybrids of cashew under maidan parts of Karnataka.
Ideal, Nut yield, Pruning, Rejuvenate, Unproductive
