41.
Which spore of rust fungus is repeating spore?

42.
Citrus tristeza virus is

43.
The alternate host of leaf rust of wheat is

44.
Flour is a

45.
An NPK complex can be used if the dose asks for

46.
Cercals straw is a particularly rich source of

47.
Female gametophyte of angiosperms is represented by

48.
Black heart of potato is caused due to

49.
Triple super phosphate contains

50.
Yellow mosaic of legumes was first reported in India from