61. For the first time who reported that a plant disease (fire blight of pear) was caused by bacterium (Erwinia amylovora) in 1882
62. Rock phosphate is a suitable fertiliser for soils which are
63. Perisperm is
64. Basidiospores of wheat black rust germinate on
65. Furctose 1 : 6 biphosphate splits into two triose phosphates by enzyme
66. Which of the following does not hold good for virusoids?
67. Tyndallization consists of heating the subastance at
68. A 5-carbon compound of Krebs cycle is a key compound in nitrogen metabolism. It is
69. Pore size of HEPA filters of LAI (in μ) is
70. The technique used for maintenance and preservation of Trichoderma is
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