Morning Glories: As Chrysanthemum, MG is from the group " short day ", 1 by dany12

dany12 wrote:
Poinsettia adapt to the light cycle of the region. Only if you want to change the date or he presents his colorful bracts that make him suffer treatment "short day".

Pruning of MG is practiced only for exhibitions. One of the objectives is the size of flowers, some varieties reach 9.45 inch. There are other criteria such as number of flowers, the aesthetics of the plant , the colour etc. .. ..For competitions plants should not undergo treatment "short day".

Undergo treatment "short day" aims to bloom earlier or plants to flower has an unnatural period for them.All the regions of Japan have not long summers and often complain of the unable to produce seeds to Ip. Tricolor, the seeds fail to mature.

Or for example Ipomoea ochracea if it is sown in spring will give its first flowers in December , it's late. Note, wild ipomoea respond to treatment "short day" with more difficulties ; sometimes must be repeated several times.

This photo shows two seedlings on the same day. One was undergoing treatment "short day". Which?