The effect of spin-0 goldstino superpartners is considered on the nucleosynthesis bounds arising when a superlight gravitino appears as an effective massless neutrino species .
When the scalar and pseudoscalar superpartners are relativistic they will decouple at much later times than the goldstino and consequently will be the dominant effect when obtaining a nucleosynthesis bound on the scale of supersymmetry breaking .
Assuming that the scalar and pseudoscalar fields decouple at a temperature no later than { \cal O } ( 100 ) MeV , then typically the scale of supersymmetry breaking \sqrt { F } \gtrsim 60 TeV .
This corresponds to a lower bound on the gravitino mass m _ { 3 / 2 } \gtrsim 1 eV .