Before we start today's topic, let's first understand what photoperiod is.
Photoperiod refers to the ratio of light and dark time that plants receive in a day.
Different plants have different requirements for photoperiod. Some plants grow better under long-term light (such as wheat, carrots, spinach, etc.), while some are short-day plants and need more dark time (such as chrysanthemums, soybeans, marigolds, etc.).
How much does photoperiod impact on plants? Why do we need to control the light time so precisely?
For plants, photoperiod directly affects their photosynthesis, growth rate, flowering time and may even affect their morphological structure.
Cannabis is a plant that is sensitive to photoperiod. The correct setting of the duration between light and dark has a very large impact on the growth process of cannabis, and even affects the quality and yield of cannabis.
Don't let this duration setting cause your cannabis harvest to be less than ideal.
OK, next, let's take a look at how to set the photoperiod for cannabis growth.
Seedling Stage
For cannabis in the seedling stage, about 16 to 18 hours of light are needed every day.
At this time, cannabis is in a rapid growth stage. Adequate light can accelerate growth and quickly establish root systems and stem and leaf structures. If the light exposure time is not enough, the growth rate of the seedlings will be significantly slowed down, and they may even become morbid.
Vegetative Stage
When cannabis enters the vegetative stage, we need to simulate long daylight environment in summer and set the light cycle to 18 hours of brightness and 6 hours of darkness to maximize the photosynthesis of the plant and accelerate growth.
Flowering Stage
During the flowering period, growers should set the light cycle to 12 hours of brightness and 12 hours of darkness to simulate the short-daylight environment in autumn. Shortening the light exposure time and extending the dark time can stimulate the plant to produce more flowering hormones and promote the flowering of cannabis.
Recommended cannabis grow lights:
640W full spectrum led grow lights
The Octopus 640 is a 640W full spectrum foldable LED grow light that is foldable, easy to install, low shipping cost and comes with an independent dimming knob. It fits 1.2x1.2 meters and 1.5x1.5 meters grow tents and is delivered free of charge to all parts of South Africa.
It uses 2592 top-grade OSRAM diodes (warm white, cool white, blue and red) with a PPF of up to 1856 umol/s and a PAR Efficacy of up to 2.9 umol/J. It uses six 107W LED bars to provide even light distribution.
Specs
LED Diodes: 2592pcs, Full Osram
Spectrum: Full-spectrum
PPF (light output): 1856 umol/s
PAR Efficacy: 2.9 umol/J
Dimensions: 111.5 x 111 x 8.7 cm, 43.9 x 43.7 x 3.42 in
Product weight: 30.8lbs (14kg)
The GLMX 720 LED is a 720W full spectrum grow light with 2142 OSRAM LEDs (warm white, cool white, blue and red) with a PPF of up to 2088 umol/s and a PAR efficiency of up to 2.9 umol/J.
It comes with six 120W LED strips for even light distribution. Individual dimming knobs allow for dimming, it fits 1.2x1.2 meters and 1.5x1.5 meters grow tents, and comes with free delivery to anywhere in South Africa.
Specs
LED Diodes: 2142pcs, Full Osram
Spectrum: Full Spectrum+660nm red light
PPF (light output): 2088 umol/s
PAR Efficacy: 2.9 umol/J
Dimensions: 113.4 x 100 x 8 cm, 44.65 x 39.37 x 3.15 in
Product weight: 39.71 lbs (18 kg)
Since its establishment in 2009, VANQ has always been customer-centric and committed to providing high-quality LED grow lights for cannabis cultivation, vertical farming, greenhouses and tissue culture.
we have a state-of-the-art production plant in China and a warehouse in South Africa, ensuring free and fast delivery services within South Africa.
