Question
Which of the following statements about extent of infection and perpetuation of pathogen are correct? (
- A Disease which is confined to a particular part or organ is known as systemic disease (
- B Arhar wilt is a soil-bome disease (
- C Smut disease of cereals are seed-bome (
- D Mildew and rusts are air-bome. Choose the correct answer from the options given below.
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