  We present a viable string embedding of Affleck-Dine baryogenesis in type IIB
sequestered models where the late-time decay of the lightest modulus reheats
the universe to relatively low temperatures. We show that if inflation is
driven by a blow-up Kaehler modulus, the Affleck-Dine field can become
tachyonic during inflation if the Kaehler metric for matter fields has an
appropriate inflaton-dependent contribution. We find that the Affleck-Dine
mechanism can generate the observed baryon asymmetry for natural values of the
underlying parameters which lead also to successful inflation and low-energy
gaugino masses in a split supersymmetry scenario. The reheating temperature
from the lightest modulus decay is high enough to allow thermal Higgsino-like
dark matter.
