61.
International seed health testing lab was established in 1918 in

62.
Endosmosis of water occurs when water potential of the cell sap is

63.
A fertiliser not listed in the FCO cannot be labelled an sold as fertiliser because it is

64.
Which type of toxin known to the primary determinant of pathogenicity?

65.
Number of components in alfa alfa mosaic virus is

66.
Chaubatia paste is made in

67.
In Casuarina fertilisation takes place through

68.
Decomposition of organic matter in submerged soil is carried out by

69.
Ubisch bodies are connected with the formation of

70.
Which element is required photosynthetic evolution of oxygen?