An investigation on effect of sowing time on growth, phenology and yield attribute of summer groundnut (Arachis hypogaea L.) was conducted at Agrometeorological Station Farm, School of Forestry and Environment, SHIATS-Deemed-To-Be-University, Allahabad during crop season 2013. Sixteen treatment combinations with four dates of sowing (1st March, 11th March, 21st March and 31st March) and four varieties (HNG-69, R2(Girnar-2), HNG-10 and M-13) were tried in split plot design with four replications. | Study on agrometeorological indices thermal and photothermal use efficiency of summer groundnut Arachis hypogaea L. at Allahabad region India