Duramen is present in
inner region of secondary wood
part of sap wood
outer region of secondary wood
region of pericycle
Most of the economically important fibre yielding plants belong to family
Malvaceae
Solanaceae
Cruciferae
Paceae
In cell cycle, during which phase chromosomes are arranged in equatorial plate?
Metaphase
Anaphase
Telophase
Prophase
Induction of flowering by low temperature treatment is
vernalization
cryobiology
photoperiodism
prunning
A.
vernalization
Vernalization is chilling or cold treatment of the young plants in order to induce flowering. It is a process for shortening the juvenile or vegetative phase of the plants in order to fasten the flowering process. Common examples includes winter rye, winter wheat, winter barley, pea etc.
Cryobiology is the study of life at low temperature, ie, at liquid nitrogen and preservation of organisms by chemical methods.
Photoperiodism is the effect of photoperiods or daily duration of light hours on the growth and development of flowering in plants.