%A SUN Gen-Lou YAN Ji YANG Jun-Liang %T STUDY ON KARYOTYPES OF THREE SPECIES OF ROEGNERIA %0 Journal Article %D 1992 %J Plant Diversity %R %P 1-3 %V 14 %N 02 %U {https://journal.kib.ac.cn/CN/abstract/article_31359.shtml} %8 1992-04-25 %X In this paper the karyotypes of Roegneria komarovii (Nevski) Nevski, R.fedtschenkoi (Tzvel.) J.L.Yang et B.R.Lu and R. caucasica Nevski were analysed. The karyotype formulae are as follows: R.komarovii: 2n= 4x= 28= 24m+ 2sm+ 2sat; R.fedtschenkoi: 2n= 4x= 28= 24m+ 2sm+ 2sat; R.caucasica: 2n= 4x= 28= 22m+ 2sm+ 4sat. The karyotpyes of R.komarovii, R.fedtschenkoi and R.caucasica fall into "2A" type.