|
Crop
|
Disorder
|
Symptoms
|
|
|
Chilling Injury
|
Chilling sensitive at temperatures below 10°C.
Consequences are failure to ripen and develop full colour and flavour, irregular/blotchy colour development, premature softening, surface pitting, browning of seeds and increased decay.
|
|
Freezing Injury
|
Freezing injury will be initiated at -1°C.
Symptoms of freezing injury include a water soaked appearance and excessive softening of fruits with dull colour.
|
|
|
Blossom end rot
|
Lesions appear at blossom end of the green fruit.
Water soaked spots appear at the point of attachment of the senescent petals.
The affected portion of the fruit becomes sunken, leathery and dark coloured.
|
|
|
Cat face
|
Fruits are characterized by the distortion of the blossom end.
Affected fruits have ridges, furrows, indentations and blotches.
|
|
|
Cracking
|
Three types – concentric, radial and cuticular.
Common during rainy season when temperature is high, especially when rain follows long dry spell.
|
|
Capsicum
|
Blossom-end rot
|
Deficiency of calcium in fruit
|
|
Onion
|
Freezing Injury
|
Soft water-soaked scales rapidly decay due to subsequent microbial growth.
|
|
Translucent Scales
|
Resembles freezing injury.
3-4 week delay in cold storage increases risk significantly.
|
|
Garlic
|
Sprouting of bulbs
|
Excessive moisture or winter rains and supply of nitrogen.
|
|
Splitting
|
Delayed harvesting or irrigation after long spell of drought.
|
|
|
|
|
Bhendi
|
Chilling injury
|
Discoloration, pitting, water-soaked lesions and increased decay.
|
|
Freezing injury
|
Occurs at temperatures lower than -1.8°C.
|
|
Cucumber
|
Freezing injury
|
Freezing injury will be initiated at - 0.5°C (31°F).
Symptoms include a watersoaked pulp becoming brown and gelatinous in appearance over time.
|
|
Peas
|
Freezing injury
|
Freezing injury will be initiated at -0.6°C resulting in water soaking followed by rapid decay due to soft-rot bacteria.
|
|
Potato
|
Greening
|
Surface of the tuber turns green on exposure to light.
|
|
Black heart
|
Sharply defined, purplish-grey to black area in center or cavities due to oxygen starvation.
|
|
Chilling injury
|
Gray to red-brown areas or black heart.
|
|
Freezing injury
|
Vascular tissue turns black and tubers leak when thawed.
|
|
Blackspot
|
Internal black spots due to bruising.
|
|
Internal Brown Spot
|
Brown Center / Hollow Heart and Translucent End
Dry, corky reddish-brown or black spots appear on the tissue of the potato.
|
|
Brinjal
|
Chilling Injury
|
Chilling sensitive at temperatures below 10°C.
Symptoms are Alternaria rot, pitting, surface scald and blackening of seeds.
|
|
Freezing Injury
|
Freezing injuries are caused at - 1°C.
Symptoms appear as water soaked pulp which finally turns brown.
|
|
Cabbage
|
Yellowing
|
Gradual loss of green chlorophyll pigment and yellowing of the outer leaves.
Sensitive to ethylene, which causes both leaf yellowing and leaf shedding.
|
|
Black Leaf Speck
|
Development of individual specks, randomly distributed over the leaf.
Initially the specks are small in size, but they may develop further in storage and unite into spots as large as 2 mm (0.08 in) in diameter.
|
|
Physical Injury
|
Damage to the midribs often occurs during field packing and causes increased browning and susceptibility to decay.
|
|
Chilling injury
|
Occurs during storage at 0°C for 3 months or longer.
Symptom is midrib discoloration, especially on outer leaves
|
Participants