In a field of sugarcane, all the plants have been damaged during an epidemic of a fungal disease, whereas, in another field in the same area, there were many plants that were not affected by the disease.
(i) Explain the reason for this observation.
(ii) An expert explains to the farmer, how" the unaffected plants can be used to increase their number. Can you enumerate them?
(iii) Is there any method to recover disease-free plant from diseased ones.
(iv) What values are shown by the expert?