| The study waw made to discuss the effects of plant growth regulators on seed germination of Medicago truncatula. Taking water as CK, germination exper
iments were conducted with 50 Medicago truncatula seeds on filter papers soaked with different concentrations like 0.1, 1.0, 1.5, 2.0, 5, 10, 20 and 1000 μmol/L of 6-BA, GA3, ABA, NAA, Ethephon, IAA and IBA. The germination rate, germination potential, germination index and germination days were investigated. The resu
lts showed that 20 μmol/L 6-BA, GA3 and Ethephon, 5 μmol/L IAA and IBA could promote germination significantly. NAA and ABA showed inhibitory effect on the ge
rmination of Medicago truncatula, and ABA inhibited more than NAA. So it is concluded that 7 plant growth regulators could affect the seed germination of Medicago truncatula. |