Fig. 1

Oxidative stress indicators (H2O2 and MDA) and proline accumulation in ungrafted and grafted plum rootstock candidates.(A) H₂O₂ content in ungrafted rootstock candidates, (B) H₂O₂ content in grafting combinations, (C) MDA content in ungrafted rootstock candidates, (D) MDA content in grafting combinations, (E) proline content in ungrafted rootstock candidates, and (F) proline content in grafting combinations. Different letters above bars indicate statistically significant differences according to Duncan’s multiple range test (p < 0.05). Values are means ± SE.