Effects of irrigation frequencies on growth and yield of summer groundnut

Babalad, H. B.; Kulkarni, G. N.

Studies were made on scheduling of irrigation to summer groundnut (cv. Dh-8) with irrigation scheduled at week interval (T1), at 50, 75 and 100 mm cumulative can evaporation (CCE) in T2, T3 and T4 treatments respectively, at 50 percent depletion of available soil moisture (ASM) in T5 and at critical stages (T6). The treatments which received irrigation frequently (T1, T2 and T5) recorded significantly higher plant height, number of leaves, drymatter accumulation as compared to less frequently irrigated treatments (T3, T4 and T6) Similarly, leaf area, leaf area index and LAD increased significantly with increase in the number of irrigations. Irrigation at 50 percent depletion of ASM recorded a significantly higher yield.