There are several reports on the comparison and selection
between different genotypes of turf grasses for color uniformity,
wear tolerance and coverage (Skirde, 1989; Dunn et al.,
1994; Newell et al., 1996; Salehi and Khosh-Khui, 2004). Salehi
and Khosh-Khui (2004) compared different seed mixtures in the
experimental field in Shiraz and reported that mixture of Poa
with Cynodon had highest tiller density, root growth and chlorophyll
content. They also showed that Lolium monoculture was
not suitable in regard to low tiller density