二倍体新麦草染色体核型分析

摘要

The chromosome karyotype of P.Perinnis was analyzed in this paper.The root tip were treatsd with treatment solutions to low osmosis，then put dyeing with schiff.The result shows，that chromosome number is 2n=14，the karyotype formula is as follows：2n=2x=14=12m+2sm (2SAT).%新麦草是优良牧草种质资源之一.本文对新麦草(Pasthyrostaehys perinnes)的核型进行分析，用处理液对新麦草进行前、后低渗处理，席夫试剂染色制片.实验结果表明，新麦草染色体数目为2n=14，核型公式2n=2x=12m+2sm(2SAT).