Effect of boundary plantation of tamarind (Tamarindus indica L.) trees on growth and yield of groundnut

A field experiment was carried out to know the adverse effect of bund plantation of tamarind trees on productivity of groundnut for two years during kharif season from 2009 to 2010 at Agricultural Research Station, Anantapur in rainfed Alfisols. During 2009, higher pod and haulm yield was recorded at the distance of 9-10 m, however, it was comparable with distance of 8-9 m of tamarind trees, whereas, lower pod and haulm yield was recorded at 0-1 m distance but at par with 7-8 m distance from tamarind trees. The pod yield of groundnut was reduced to 98.9, 98.3, 96.6, 93.1, 88.6, 77.1, 54.3, 52.6 and 13.7% at 0-1, 1-2, 2-3, 3-4, 4-5, 5-6, 6-7, 7-8 and 8-9 m, respectively, compared to 9- 10 m away from tamarind trees. During 2010, higher pod yield was recorded at 9-10 m away from tamarind trees and it was significantly superior to rest of the treatments and lower pod yield was at 0-1 m away from tamarind trees. The pod yield of groundnut was reduced to 91.8, 83.7, 78.4, 64.9, 60.4, 42.9, 41.4, 35.2 and 24.6% at 0-1, 1-2, 2-3, 3-4, 4- 5, 5-6, 6-7, 7-8 and 8-9 m, respectively, compared to 9-10 m away from tamarind trees. It can be concluded that in both years pod yield reduction in groundnut was high (more than 35%) upto 8 m distance from tamarind trees planted on the bunds.