The partial period properties of the Kerdock-code sequences derived from

Z

p

l

are studied

where

p

is an odd prime and

l

is an arbitrary positive integer.Utilizing a nontrivial upper bound for the incomplete exponential sums over Galois rings of characteristic

p

l

we obtain the upper bounds for the aperiodic autocorrelation and crosscorrelation of the

p

-ary Kerdock-code sequences derived from

Z

p

l

.Also we analyze the partial period distributions and the partia

l period independent

r

-pattern distributions of these sequences.The results show that such sequences have low aperiodic autocorrelation and crosscorrelation

and their partial period distributions and partial period independent

r

-pattern distributions are asymptotically uniform

which indicates that these sequences have strong potential applications in communication systems and cryptography.