Effect of varying levels of zinc on growth and yield of groundnut (Arachis hypogaea L.) varieties

Girnar 2 variety of groundnut was found superior with respect to the Plant height, dry matter accumulation, number of branches and number of nodules. Maximum plant height was recorded in variety TG37A. The yield attributes (number of pods per plant, number of kernels per pod, seed index, shelling percentage) and pod, haulm and biological yields were significantly higher in variety Girnar 2, but almost same as those of RG510. Furthermore, plant height, dry matter accumulation, number of branches, pods per plant, kernels per pod, pod yield, haulm yield, biological yield, harvest index, number of nodules, shelling percentage and seed index etc. significantly increased with the application of Zn upto 5 kg/ha.