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