“…The increase in seed yield with phosphorus and ZnSO 4 application was due to (i) increase in source capacity like plant height, number of branches plant -1 and number of leaves plant -1 as well as sink capacity like, number of pods plant -1 , number of seeds pod -1 and test weight (ii) better utilization of photosynthates towards sink due to increase in translocation from source to sink. The result is in conformity with the finding of Singh et al, (2014), Ganga et al, (2014), Pathak et al, (2012), Singh and anubhuti (2011), Kuttimani and Velayutham, (2011) and Singh et al, (2009).…”