Tag: plant diseases

Quizzes (1) Questions (52)

Questions Related to plant diseases

Multiple choice plant diseases keeping diseases away biology

Match List I with List II and select the correct answer.

List-I List-II
a. Ascobolus $1$. Lignicolous
b. Erysiphe $2$. Bunt disease
c. Polyporous $3$. Ectoparasite
d. Tilletia $4$. Coprophilous
  1. A-$4$, B-$3$, C-$2$, D-$1$
  2. A-$3$, B-$4$, C-$2$, D-$1$
  3. A-$4$, B-$3$, C-$1$, D-$2$
  4. A-$3$, B-$4$, C-$1$, D-$2$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Ascobolus is coprophilous (grows on dung), Erysiphe is an ectoparasite (powdery mildew), Polyporus is lignicolous (wood-decaying), and Tilletia causes bunt disease.

Multiple choice plant diseases keeping diseases away biology

The staple crop in Ireland was completely destroyed in $1844-1846$, by a fungal disease resulting in a great famine. The causal organism in this case was _____________.

  1. Puccinia graininis

  2. Ustilago tritici

  3. Phytophthora infestans

  4. Claviceps purpurea
Reveal answer Fill a bubble to check yourself
A Correct answer
Multiple choice plant diseases keeping diseases away biology

Consider the following organisms.
a. Viruses
b. Bacteria
c. Mycoplasmas
d. Fungi
The correct chronological sequence in which they were, recognized as incidents of plant diseases is?

  1. $1, 2, 3, 4$
  2. $4, 2, 1, 3$
  3. $4, 1, 3, 2$
  4. $1, 4, 2, 3$
Reveal answer Fill a bubble to check yourself
A Correct answer
Multiple choice plant diseases keeping diseases away biology

Which one of the following pairs is NOT correctly matched?

  1. Wart disease - Synchytrium of potato endobioticum

  2. Soft rot of- Phtomonas ricinii of wheat ears

  3. Bacterial rot- Phytomonas ricinii of wheat ears

  4. Late blight- Phytophthora infections of potato
Reveal answer Fill a bubble to check yourself
A Correct answer
Multiple choice plant diseases keeping diseases away biology

Match List-I with List-II and select the correct answer.

List-I(Common name) List-II(Scientific name)
a. White rust $1$. Puccinia graminis
b. Yellow rust $2$. Puccinia triticina
c. Brown rust $3$. Puccinia glumarum
d. Black rust $4$. Albugo candica
  1. A-$4$, B-$2$, C-$3$, D-$1$
  2. A-$3$, B-$2$, C-$4$, D-$1$
  3. A-$4$, B-$3$, C-$2$, D-$1$
  4. A-$3$, B-$2$, C-$1$, D-$4$
Reveal answer Fill a bubble to check yourself
A Correct answer
Multiple choice plant diseases keeping diseases away biology

Crown gall symptoms are present in ______________.

  1. Peas, apple and sugarcane

  2. Pear, grapes and sugarcane

  3. Apple, grapes and sugarcane

  4. Pear, apple and grapes
Reveal answer Fill a bubble to check yourself
A Correct answer
Multiple choice plant diseases keeping diseases away biology

Consider the following events.
a. Germ tube formation
b. Aspersoria formation
c. Penetration
d. Haustoria's formation.
The correct sequence in which these events take place during plant infection is?

  1. $2, 1, 4, 3$
  2. $2, 3, 1, 4$
  3. $1, 2, 3, 4$
  4. $1, 2, 4, 3$
Reveal answer Fill a bubble to check yourself
A Correct answer
Multiple choice plant diseases keeping diseases away biology

Crown gall disease enhances ________________.

  1. Meristematic activity

  2. Development of chloroplasts

  3. Reduction in leaf size

  4. Alteration in the morphology of flowers
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Crown gall disease involves the transfer of T-DNA into the plant genome, which causes the plant cells to produce auxins and cytokinins, leading to excessive meristematic activity and tumor growth.

Multiple choice plant diseases keeping diseases away biology

Which one of the following diseases is caused by mycoplasma-like organism?

  1. Sugarcane mosaic disease

  2. Wilt disease of sugarcane

  3. Ring spot of sugarcane

  4. Grassy shoot of sugarcane
Reveal answer Fill a bubble to check yourself
A Correct answer
Multiple choice plant diseases keeping diseases away biology

Which of the following is not a viral disease of plants?

  1. Red rot of sugarcane

  2. Tobacco mosaic disease

  3. Leaf curl of tomato

  4. Tristeza disease of citrus
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Red decay is the most widely recognized infection of sugarcane, caused by the growth Colletotrichum falcatum Went. 

So, the correct option is 'Red rot of sugarcane'.