Pavut - Discolouration
Symptoms
Older leaves show a dark green color whereas young leaves are pale green to yellow. The plants may wilt, older leaves can scorch and senesce prematurely. Plant growth is severely stunted. Pod and seed development is inhibited.
Reasons
Calcium deficiency (right)
Calcium undersupply can often be observed together with Al and Mn toxicities in acid soils, where Ca levels are usually low. Calcium is easily available in the pH range 7.0-8.5.
Pavut - Chlorosis
Symptoms
Older leaves show a dark green color whereas young leaves are pale green to yellow. The plants may wilt, older leaves can scorch and senesce prematurely. Plant growth is severely stunted. Pod and seed development is inhibited.
Reasons
Calcium deficiency (right)
Calcium undersupply can often be observed together with Al and Mn toxicities in acid soils, where Ca levels are usually low. Calcium is easily available in the pH range 7.0-8.5.
Pavut - Deformation
Symptoms
Older leaves show a dark green color whereas young leaves are pale green to yellow. Sunken, shrivelled areas occur on young leaf margins. The plants may wilt, older leaves can scorch and senesce prematurely. Plant growth is severely stunted. Pod and seed development is inhibited.
Reasons
Calcium deficiency
Calcium undersupply can often be observed together with Al and Mn toxicities in acid soils, where Ca levels are usually low. Calcium is easily available in the pH range 7.0-8.5.
Pavut - Deformation
Symptoms
Older leaves show a dark green color whereas young leaves are pale green to yellow. Sunken, shrivelled areas occur on young leaf margins. The plants may wilt, older leaves can scorch and senesce prematurely. Plant growth is severely stunted. Pod and seed development is inhibited.
Reasons
Calcium deficiency
Calcium undersupply can often be observed together with Al and Mn toxicities in acid soils, where Ca levels are usually low. Calcium is easily available in the pH range 7.0-8.5.
Pavut - Deformation
Symptoms
Older leaves show a dark green color whereas young leaves are pale green to yellow. Sunken, shrivelled areas occur on young leaf margins. The plants may wilt, older leaves can scorch and senesce prematurely. Plant growth is severely stunted. Pod and seed development is inhibited.
Reasons
Calcium deficiency
Calcium undersupply can often be observed together with Al and Mn toxicities in acid soils, where Ca levels are usually low. Calcium is easily available in the pH range 7.0-8.5.
Calcium deficiency vs. healthy plant made worse by
- Acidic soils
- Sandy or light soils (leaching)
- Acid peat soils
- Soils rich in sodium
- Soils rich in aluminium
- Drought conditions
- Fruit high in nitrogen or potassium
- Large fruit
Calcium is important for
- Healthy leaf growth and development
- Increased yields