| ⇦ | 
| ⇨ |
Black (stem) rust of wheat is caused by
Options
(a) Alternaria solani
(b) Ustilago nuda
(c) Puccinia graminis
(d) Xanthomonas oryzae
Correct Answer:
Puccinia graminis
Explanation:
Black stem rust is caused by Puccinia graminis. The genus Puccinia includes 700 species, which cause rust disease of many economic plants such as wheat, barley, oats, etc. It is called a rust because of the reddish brown color of the spores that are found chiefly upon the surface of the host leaves and stem. P. graminis is heteroecious i.e., requiring two hosts, wheat and barberry for the completion of normal life cycle. According to the nature of the spores, the life cycle of the P.graminis is divided into
Related Questions: - Which of the following biomolecules does have phosphodiester bond?
- The triplet UUU codes for
- Giraffe has long neck, this can be attributed to
- The inner space of the mitochondria incompletely partioned by folds of inner
- Flowers are zygomorphic in :
Topics: Diversity In Living World
(339)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Which of the following biomolecules does have phosphodiester bond?
- The triplet UUU codes for
- Giraffe has long neck, this can be attributed to
- The inner space of the mitochondria incompletely partioned by folds of inner
- Flowers are zygomorphic in :
Topics: Diversity In Living World (339)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply