Question

Is Kentucky Blue Grass haploid or diploid dominant?

Answer 1

The genus Poa is actually well known by having great variation in chromosome numbers, and Poa pratensis (Kentucky bluegrass) shows great variation between their individuals in chromosome number, but always ranging between 24 and 124.

In this cases, when we are talking about grasses, the term haploid is not correctly used, as it refers to a plant that has half the chromosome number due to haplosporic partenogenesis. The number of different chromosomes in P. pratensis is 7, the lowest number of total chromosomes goes around 28, those are tetraploid, but the most common is 56, that is octaploid. So in this terms the "diploid" individuals (56 chromosomes) is actually dominant over the "haploid" individuals (28 chromosomes)

Well, going straight to the answer, the Kentucky Bluegrass is diploid dominant.