Lisianthus

[abigri@iaw.com]

I have heard and read conflicting information about day-length sensitivity
of Lisianthus. 
Some claim that Lisianthus only induces flowers under long-day conditions,
others say that Lisianthus seedlings and plugs should be grown in long-days
to prevent immature flowering.

Could anybody tell me how to avoid early budding in cut-Lisianthus in
summer; (with respect to daylength ?)

Thank You

Albert Grimm