Magnesium deficiency in breadfruit causes the older leaves to yellow between the lateral veins while leaving the midrib green. Applying dolomite to the soil can correct this. Boron deficiency results in fruit splitting and reddish purple coloring as well as brittle and chlorotic leaves with stunted terminal growth. Applying borax to the soil can address this. Iron deficiency presents as young leaves with interveinal chlorosis while veins remain green, and in severe cases the entire leaf turns yellow except for the green midrib. Applying FeSO4 to the soil can remedy iron deficiency. Manganese deficiency causes yellow leaves with green veins, which can be corrected by applying MnSO4 to the soil.

2. Bread Fruit Physiological Disorders
A
Lecture To ToT trainees ( FFS)
By
Mr. Allah DadKhan
Provincial Coordinator IPM KPK
MINFAL Pakistan

3. MagnesiumDeficiency
Symptoms
• Yellowing of older leaves
between lateral veins on
either side of
midrib. Chlorosis spreads
from margin towards
midrib.
• Correction MeasureSoil
application of dolomite 5
kg/tree/year.

4. BoronDeficiency
Symptoms
• Fruits show splitting or
cracking with characteristic
reddish purple
colour. Leaves show
chlorosis and
brittleness. Terminal shoot
poorly developed.
• Correction MeasureSoil
application of borax 25
g/tree/year.

5. IronDeficiency
Symptoms
• Young leaves show
interveinal chlorosis. Veins
remain green. In severe
cases entire leaf becomes
yellow. The midrib remain
green with stunted growth.
• Correction MeasureSoil
application of FeSO4 0.5
kg/tree/year.

6. ManganeseDeficiency
Symptom
• sLeaves become yellow in
color; veins remain green in
color
• Correction MeasureSoil
application of MnSO4