Late blight of potato is caused by
Ustilago
Pseudomonas
Phytophthora infestans
Colletotrichum falcatum
C.
Phytophthora infestans
Phytophthora infestans, a pathogen of Class Phycomycetes attacks a number of members of family- Solanaceae, the important being potato and tomato. It causes late blight of potato as its destruction is seen in the later stages of the plant.
Define the following terms:
(d) zygomorphic
Define the following terms:
(e) superior ovary
Define the following terms:
perigynous flower
Define the following terms:
epipetalous stamen
Define the following terms:
(a) Racemose and cymose inflorescence
Define the following terms:
(b) Fibrous root and adventitious root
Define the following terms:
(c) Apocarpous and syncarpous ovary
Draw the labelled diagram of the following:
(i) Gram seed (ii) V.S. of maize seed
Describe modifications of stem with suitable examples.
Take one flower each of the families Fabaceae and Solanaceae and write its semi-technical description. Also draw their floral diagram after studying them.
Mock Test Series
