Question

Which one is the abiotic disease of rice?
Options
O Blast
O False smut
O Khaira
O
Brown spot​

Answer 1

Explanation:

blast is best abiotic of rice.

Answer 2

Concept: Plant disease caused by biotic and abiotic factors,

Answer: Option C (khaira) is the correct answer,

Explanation:

• In the present study consider eleven different types of stress in paddy (Rice) crops.
• Mainly two biotic and nine abiotic factor causes disease in plant.

In Option A

• Blast is the fungal caused disease. It is biotic stress,

In option B

• False smut Is caused by the fungus. Ustilaginoidea virens, this is biotic stress

In option C

• Khaira is caused by abiotic factor due to deficiency of Zinc(Zn) micro-nutritional. It is biotic stress.

In option D

• Brown spot is biotic stress. It is caused by fungus, that infects the coleoptile, leaves leaf sheath, panicle branches, glumes and spikelets.

Hence, the correct answer of the question is option C khaira,

              Fig: table of abiotic and biotic factor in plant disease,