Solarisation is
formation of chlorophyll
destruction of chlorophyll
utilisation of sunlight
effects of solar light
A fern prothallus is bisexual. If fertilisation takes place between their gametes than it is known as
cross- fertilisation
self- fertilisation
isogamous
viviparous
Which of the following is not the feature of gymnosperms?
parallel venation
perennial plants
distinct branches (long and short branches)
xylem with vessels
Stem cuttings are commonly used for the proprogation of
banana
rose
mango
cotton
B.
rose
Stem cuttings are used in Citrus, Cocoa. Rooting of stem cuttings is hastened by dipping in NAA or IBA.
Grafting is usually done in case of mango.
Rhizomes take part in vegetative propogation due to presence of buds, eg, banana, ginger.
Edible part in 'sorosis', a composite fruit, is
cotyledons
endosperm
perianth and peduncle
fleshy thalamus
Most primitive member, in which roots are not present, is
Psilotum
Rhynia
Lycopodium
Selaginella