51.
Repeated applications of pesticides produce

52.
Promycelium in rust fungi bears

53.
Downy mildew of pea caused by

54.
Urea of foliar spray should not contain biuret more than

55.
Both longitudinal and transverse septation are found in

56.
Accessory pigments transfer their energy to chlorophyll molecules through

57.
Which is a contact fungicide?

58.
Albugo candida causes white blisters or white rust of crucifers is a/an

59.
Fusion of vegetative hyphae is known as

60.
Which of the following herbicides are applied to the soil at the time of seeding?