Flowering Stimulus Biology Discussion

The following points highlight the top six theories of flowering.

Flowering stimulus biology discussion. The translocation of a stimulator and finally a specific response in the growing tip and thus the formation of flower. Chailakhyan flowering response needs atleast four steps and these are perception of stumulus. The translocation of stimulus.

According to the russian plant physiologist c. In this article we will discuss about 1. Site of vernalization 3.

Before the discovery of photoperiodism and vernalization a general observation made. Definition of vernalization 2. Water stress theory 4.

The transformation of the perceiving organ. Unfortunately the florigen has never been isolated. Floral inhibitor theory 6.

C n relationship theory 2. Trace element nutrition theory 3. Apart from light and chemical stimulus for flowering temperature is also one important stimulus that a lot of plant species use to flower e g some orchid species.

Some plant physiologists have proposed the existence of a flower inducing growth hormone the florigen naylor 1952 and chailakhyan 1968. Once the night is long then pfr is reversed back to pr and the formation of flowering stimulus is prevented. Nature of vernalization process 4.