Vegetative clone samples of 100 accessions collected from a diverse geographical area of Iran were clonally propagated in a greenhouse and evaluated in the field under two moisture regimes (non-stress and drought stress) in 20. pratensis accessions for drought stress and to identify the association between polyphenol compounds and forage yield traits. The present study was conducted to assess the genetic potential of a collection of P. Germplasm and phenotypic diversity evaluations lay a foundation for genotype selection and improvement of varieties for drought tolerance in P. We expect that the findings of this study will aid in understanding the evolution of this plant in the context of Iran’s climatic variety.Įvaluation of forage yield and antioxidant activity in Poa pratensis with high quality and good spring green-up forage might help variety improvement for use under water deficit condition. It can also increase the plant’s variability for future generations by introducing new ecotypes, with particular genomic and morphological traits, to previously cultivated populations. It aids in predicting the location of rare genotypes used as breeding materials. The results from this study could be useful in identifying and studying wild Kentucky bluegrass genotypes. The genotypes and ecological zones of this plant in Iran were distinguished based on morphological diversity and DNA content. DNA content has a strong positive correlation with elevation, a moderately positive correlation with flag leaf length and leaf sheath width, and a negative correlation with inflorescence anthocyanin color and leaf anthocyanin color. The range of DNA content was fairly wide, ranging from 4.92 to 11.52 pg. The relative sizes of the 2C genomes were measured using laser flow cytometry. The squash technique of chromosome counting revealed that Iranian Kentucky bluegrass accessions had chromosomal counts ranging from 24 to 87.
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UPOV standards were used to measure the qualities that were researched. The plant materials included fifty accessions from Iran’s Center, South, North, North-East, North-West, and West ecoregions. By facultative apomixis, this plant can create a wide range of ploidy levels (2n = 22 to 2n = 154), resulting in a wide range of chromosomal numbers and sexual and apomictic reproductive diversity. is a perennial turfgrass with high regeneration and fertility, resistance to cold and drought, and quick colonization.