Comparison of drought resistance during germination of four perennial ryegrass varieties
This study simulated drought stress with PEG-6000 at 0%,5%,10%,15%,and 20%,and studied the effects of different drought treatments on the germination potential,germination rate,germination index,drought resistance index,plumule length,radicle length,and fresh weight of four perennial ryegrass varieties.The results showed that four perennial ryegrass varieties showed certain changes in various indicators during the germination period under different drought conditions,and there were significant differences among the varieties.As the stress intensity increased,the decline in various indicators gradually increased.Through comprehensive evaluation using the membership function method,the drought resistance of each variety was ranked as follows:Tailv>Lichuan>Lvtuo>Shandian.
perennial ryegrassgermination perioddrought resistancemembership function method
NETL
NSTL
万方数据
