Plant diseases

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Questions and Answers

______ is characterized by the premature shedding of plant parts.

Abscission

A sudden death of a young bud is referred to as ______.

blast

______ is associated with irregular patches on plant tissues or organs.

Blotch

A ______ is identified as a necrotic area with cracked features on plant tissue.

<p>canker</p> Signup and view all the answers

______ refers to the yellowing of leaves, often due to a lack of chlorophyll.

<p>Chlorosis</p> Signup and view all the answers

______ describes the rotting of seedlings, commonly observed in young plants.

<p>Damping off</p> Signup and view all the answers

______ is characterized by small patches of color appearing on plant surfaces.

<p>Flecks</p> Signup and view all the answers

The yellowing of normal green tissue, often a reaction to light, is termed ______.

<p>Etiolation</p> Signup and view all the answers

______ involves the clustering of roots and flowers

<p>Fasciculation</p> Signup and view all the answers

______ is the oozing of sap from wounds or injuries on a plant.

<p>Gumming</p> Signup and view all the answers

A ______ is defined as the presence of a variegated pattern of green on plant tissues.

<p>mosaic</p> Signup and view all the answers

______ refers to the infection of fruit, converting it to a hard and dry state.

<p>Mummification</p> Signup and view all the answers

______ is identified as the metamorphosis of petals, sepals and stamen.

<p>Phyllody</p> Signup and view all the answers

______ is used to describe definite depressions with pits that are cracked.

<p>Pitting</p> Signup and view all the answers

______ is the decomposition of host tissue.

<p>Rotting</p> Signup and view all the answers

The superficial brownish discoloration observed on plant surfaces is referred to as ______.

<p>russeting</p> Signup and view all the answers

______ results in the shortening of internodes, leading to a compressed growth habit.

<p>Rosetting</p> Signup and view all the answers

______ refers to the abnormal swelling observed in plant tissues or organs.

<p>Sarcody</p> Signup and view all the answers

A ______ is a slightly raised lesion on plant surfaces.

<p>scab</p> Signup and view all the answers

The abnormal development of green pigmentation is referred to as ______.

<p>Virescence</p> Signup and view all the answers

Flashcards

Abscission

Premature shedding of leaves, flowers, or fruits from a plant.

Blast

Sudden death of a young bud.

Blight

A disease or injury of plants marked by rapid death of leaves and stems.

Blotch

Irregular patches on leaves, stems, or fruits.

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Canker

A necrotic area, often with cracked or sunken tissue.

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Chlorosis

Yellowing of normally green plant leaves due to chlorophyll loss.

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Curling

Abnormal bending or distortion of leaves or stems.

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Damping off

Rotting of seedlings, often at the soil line.

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Die-back

Progressive dying backward from the tip of a stem or root.

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Flecks

Small, discolored spots or marks on leaves, fruits, or other plant parts.

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Etiolation

Yellowing of normally green tissue due to lack of light or a reaction to light.

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Fasciculation

Clustering or bundling of roots or flowers.

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Gumming

Oozing of sap from wounds or cracks in the bark.

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Mosaic

Presence of a variegated pattern, often with alternating patches of green and yellow.

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Mottling

A less defined and more diffuse form of variegation than mosaic.

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Mummification

Infected fruit that becomes hardened and dry.

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Phyllody

Metamorphosis of petals, sepals, and stamens into leaf-like structures.

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Pitting

Definite depressions, pits, or cracked areas on a surface.

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Rotting

Decomposition of host tissue.

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Virescence

Abnormal development of green pigmentation.

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Wilting

Lack of water.

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Study Notes

  • Abscission involves premature separation of plant parts
  • Blast results in the sudden death of young buds
  • Blight causes the death of host tissue
  • Blotch manifests as the presence of irregular patches
  • Canker refers to a necrotic area with cracks
  • Chlorosis is the yellowing of leaves
  • Curling is the abnormal bending of plant parts
  • Damping off is the rotting of seedlings
  • Die-back involves drying backward from the tip
  • Flects are small patches of color
  • Etiolation is the yellowing of normal green tissue, often a reaction to light
  • Fasciculation is the clustering of roots and flowers
  • Gumming is the oozing of sap from wounds
  • Mosaic describes the presence of variegated patterns of green
  • Mottling is less defined than a mosaic pattern
  • Mummification is when an infected fruit becomes hard and dry
  • Phyllody is the metamorphosis of petals, sepals, and stamens
  • Pitting causes definite depressions with pits and cracks
  • Rotting is the decomposition of host tissue
  • Rousseting is a superficial brownish discoloration
  • Rosetting is the shortening of internodes
  • Sarcody involves abnormal swelling
  • Scab appears as slightly raised areas
  • Shot-hole refers to a perforated appearance
  • Spot refers to a localized necrotic area, this is known as lesion
  • Streak manifests as a long, narrow mark
  • Vein clearing is when veins become translucent
  • Virescence is the abnormal development of green pigmentation
  • Wilting is a lack of water in plants

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