Regardless of the size of your indoor garden, the vegetative phase lays the foundation for the remainder of the growing cycle for the plants. After all, it is during this phase that the creation of the majority of the root mass occurs and the plant structure takes its form (stem strength establishes). At this stage, many indoor growers use various techniques to shape the growth of their plants and increase its yield.
Apart from different techniques, an important component is what you need to prepare your plants for a strong finish. In this case, we are referring to artificial light sources, which play a major role in the vegetative phase of indoor plants. LED grow lights are the leading artificial indoor growing light sources for indoor growing due to their many advantages.
Today, it is nothing new that most growers who take up indoor growing invest their time and money in perfecting their lighting systems. From our experience, we would like you to let you know how LEDs affect the vegetative phase in indoor plants.
The Vegetative Phase
In the field of horticulture, the vegetative phase often refers to the plant phase of growth, which occurs after germination and right before flowering. Within this phase, the plant develops most of its foliage. The plants during this stage are busy carrying out the photosynthesis process, accumulating consequently and stocking different resources like lighting, CO2 nutrients, which are necessary for reproduction as well as flowering. During this phase, plants are more fragile and hence they require more hours of light for optimal growth.
How LED Wavelengths Target Plant Growth
LEDs allow the ability to formulate and exact light spectrum, rather than just relying on the color the halide bulb puts out, or what sodium actually glows when it gets warm. The wavelengths of interest for growers who use LEDs, within the 400-700 nm range, and applicable to the vegetative and plant growth overall include:
- 439 nm, which is the blue absorption peak for chlorophyll a
- Royal blue in wavelengths 450-460 nm absorbs by one of the beta-carotene peaks. This is available readily and commonly used to excite the remote phosphors in the LED lamps.
- 430-470 nm is a range that is important for the chlorophyll absorption a, b, which is the key to the vegetative growth.
- 590 nm additionally is the phycoerythrin absorption wavelength. It is a red protein-pigment and the accessory pigment necessary and responsible for photosynthesis.
- 642-645 is the peak absorption spectrum point for chlorophyll b.
When using LED grow lights, the vegetative growth 18 hours of light. Usually, this light cycle creates an ideal environment that mimics the photoperiod in the summer season with longer days.
During the vegetative stage is when you will be able to reap the LED grow light benefits. You can save much more on your electricity bills and get better growing results. During the vegetative stage, plants also require less intensity lighting, compared to the flowering stage. Note that it is during this phase that transplanting, cloning, bending and pruning initiate.
Dorm Grow LED grow lights are ideal for the vegetative phase of your plants and flowering through harvest time. Using these indoor grow lights will allow the grower to raise a healthier crop, all the while reducing electrical consumption and having better control over the growing environment.