Abstract
The mating system of Acacia nilotica ssp. kraussiana, a naturally occurring autotetraploid species, was analysed. Open pollinated seeds germinated for 6 days were used for starch gel electrophoresis. Allozyme banding patterns were found to be in conformity with tetrasomic segregation. Multilocus estimate of the proportion of viable progeny due to outcrossing ( t m) was 0.983. Estimates of outcrossing rate of families were heterogeneous and ranged from 0.08 to 1.99. Results have been discussed in the light of the strategy to be followed for seed collection for breeding and conservation purposes.
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