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Trifid
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Here's some interesting information regarding the flowering trigger hormone Florigen..
Florigen and bloom initation
Short-day species initiate bloom following once the shorting of daylength. This is why horticulturists tend to reduced the number of hours of light exposure in the grow room from eighteen hours a day (18/6) to twelve (12/12) when they want to induce the plant to begin the flowering phase. In relation to the plant's capacity to photosynthesize (using light to facilitate the formation of sugars) six fewer hours of light a day means six fewer hours of photosynthesis. However, there are plant hormonal substances avalible to the cultivator to induce blooming without a reduction in light exposure.
In the natural setting, when the light exposure is reduced seasonaly down to 12 hours or less, the terminal leaves forming the apex of the plant begin to manufacture a phytohormone that triggers the onset of reproductive organs and the plant begins to flower. This substance is referred to as 'florigen'.
The use of the term ‘short-day plant’ isn’t completely correct, since it’s not the fact that the days are getting shorter that induces flowering in the plant, but the number of hours of darness. Although at first this difference may seem trivial, it does explain why night-visits to outdoor crops will delay flowering for your plants - When plants are exposed to light during the dark-period, the plant’s interpretation of the dark-period is interupted and the production of natural florigen levels plumet.
The discovery of florigen
A German chemist by the name of Julius von' Sachs discovered the hormone in 1865. Sachs, through endless experimentation, came to realise that when he transferred sap from a flowering plant to a non-flowering plant, the non-flowering plant beagan to flower as well. This even occured following treatment across different species of plants.
Advantages to florogenic supplementation
The capacity to manipulate the florigen threshold by supplimentation has enormous potential. Greenhouse horticulture using photo-period varieties will see increased yields from more hours of light and cultivators in areas of the northern hemisphere will be able finish tropical varieties in cooler climates with shorter growing seasons. In addition, auto-flowering varieties that lack the photoperiod independant genes can also be induced to bloom regardless of a change in the light cycle. For most cannabis horticulturalists, it will of course be the higher yields that make the applications of florigen most interesting.
Florigen and bloom initation
Short-day species initiate bloom following once the shorting of daylength. This is why horticulturists tend to reduced the number of hours of light exposure in the grow room from eighteen hours a day (18/6) to twelve (12/12) when they want to induce the plant to begin the flowering phase. In relation to the plant's capacity to photosynthesize (using light to facilitate the formation of sugars) six fewer hours of light a day means six fewer hours of photosynthesis. However, there are plant hormonal substances avalible to the cultivator to induce blooming without a reduction in light exposure.
In the natural setting, when the light exposure is reduced seasonaly down to 12 hours or less, the terminal leaves forming the apex of the plant begin to manufacture a phytohormone that triggers the onset of reproductive organs and the plant begins to flower. This substance is referred to as 'florigen'.
The use of the term ‘short-day plant’ isn’t completely correct, since it’s not the fact that the days are getting shorter that induces flowering in the plant, but the number of hours of darness. Although at first this difference may seem trivial, it does explain why night-visits to outdoor crops will delay flowering for your plants - When plants are exposed to light during the dark-period, the plant’s interpretation of the dark-period is interupted and the production of natural florigen levels plumet.
The discovery of florigen
A German chemist by the name of Julius von' Sachs discovered the hormone in 1865. Sachs, through endless experimentation, came to realise that when he transferred sap from a flowering plant to a non-flowering plant, the non-flowering plant beagan to flower as well. This even occured following treatment across different species of plants.
Advantages to florogenic supplementation
The capacity to manipulate the florigen threshold by supplimentation has enormous potential. Greenhouse horticulture using photo-period varieties will see increased yields from more hours of light and cultivators in areas of the northern hemisphere will be able finish tropical varieties in cooler climates with shorter growing seasons. In addition, auto-flowering varieties that lack the photoperiod independant genes can also be induced to bloom regardless of a change in the light cycle. For most cannabis horticulturalists, it will of course be the higher yields that make the applications of florigen most interesting.
