Microbiology and Plant Pathology-Major Plant Diseases (IFS Botany (Mains)): Questions 1 - 4 of 4

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Question number: 1

» Microbiology and Plant Pathology » Major Plant Diseases

Appeared in Year: 2015

Essay Question▾

Describe in Detail

Write short notes on the following: Tundu disease of wheat (Paper-1, Section-A)

Explanation

  • Tundu disease of wheat is also called as yellow Ear rot or Ear cockle.

  • Tundu is a minor disease problem worldwide.

  • It is quite common in north-west regions of India.

  • This disease of wheat was first reported by Hutchinson in 1917 from Punjab.

  • Now it is spread in many other… (277 more words) …

Question number: 2

» Microbiology and Plant Pathology » Major Plant Diseases

Appeared in Year: 2015

Essay Question▾

Describe in Detail

Write short note on: Powdery mildew diseases in plants (Paper-1, Section-A)

Explanation

Definition:

  • Powdery mildew is a fungal disease of the foliage, stems and occasionally flowers and fruit where a superficial fungal growth covers the surface of the plant.

  • Powdery mildews are a group of related fungi which attack a wide range of plants, causing a white, dusty coating on leaves, stems… (310 more words) …

Question number: 3

» Microbiology and Plant Pathology » Major Plant Diseases

Appeared in Year: 2013

Essay Question▾

Describe in Detail

Discuss briefly the following: Causal organisms, symptoms and control of wheat rusts in India (Paper 1, Section A)

Explanation

Three types of wheat rusts are known and all of them frequently occur in India.

  1. Black or stem rust

  2. Orange – Brown rust

  3. Yellow stripe rust

Black or stem rust:

Causal organism: Puccinia graminis tritici

Symptoms:

  • Symptoms are produced on almost all aerial parts of the wheat plant but are… (469 more words) …

Question number: 4

» Microbiology and Plant Pathology » Major Plant Diseases

Appeared in Year: 2013

Essay Question▾

Describe in Detail

Discuss briefly the following: Dissemination of pathogens by insects (Paper 1, Section A)

Explanation

  • Since the discovery by Waite that bees and wasps can transmit bacteria causing fire blight of apple and pear, Erwinia amylovora, much information has been accumulated on the role of insects and other small animals in the dissemination of plant-pathogenic viruses, bacteria and fungi.

  • Many small animals help in the… (181 more words) …

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