The Effect of Physiological State of Peach and Peach-Almond Hybrid Plants on Absorption and Translocation of Iron

Studies were conducted under controlled conditions with young peach and peach almond hybrid plants to see the effect of their pysiological state on absorption and translocation of iron. It was found that absorption of iron may be active i.e. through the activity of root system or passive in which metabolic activity of roots is not involved. Absorption of iron is hindered when the roots are mutilated, necrosed and asphyxated. Even though the intensity of foliage may be same, plants having better developed root system absorb and translocate more of iron. Plants showing stoppage of vegetative growth go on accumulating iron in stem; in contrast the plants with active foliar growth accumulate iron in leaves, particularly the younger ones. A number of commonly observed agronomic factors which increase the intensity of chlorosis are discussed in light of the present findings.