41. For the effective control of early blight of potato, which fungicide is most suitable
42. Blossom end rot of tomato is caused due to deficiency of
43. In 1845, the late blight of potato destroyed the potato crop of Ireland was caused by
44. Which of the following is a biofertilizer?
45. Most common 5 deficient nutrients in soils are N, P, K, S and
46. Which one is an essential mineral, not constituent of any enzyme but stimulates the activity of many enzymes?
47. The stage-I of a rust pathogen consists of
48. Which of the following bacteria generally used in genetic engineering for transfer of character from one organism to another
49. Polygonum type of embryo sac/female gametophyte of angiosperms is
50. Activated sludge contains
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