Healing of wound in plants takes place by the activity of
Ground tissue
Callus deposition
Secondary meristem
Permanent tissue
Viral infection is usually absent in
Damaged sieve tubes are sealed by deposition of
Possible to achieve propagation of a large number of plants in very short duration is known as ............
In order to obtain virusfree plants through tissue culture the best method is
Which of the following are fused in somatic hybridization involving two varieties of plants?