Low Stress Training (LST) is a technique used in cannabis cultivation to shape the plant and maximize light distribution, ultimately leading to higher yields. Here's a detailed explanation of the LST method:
What is LST?
Low Stress Training (LST) is a cultivation technique in which the plant is gently bent and restrained to direct its growth in a horizontal direction. This leads to several advantages:
- Improved light distribution: All parts of the plant receive more even light.
- Increased yield: Due to the even light distribution, more main colas (inflorescences) develop.
- Space saving: Ideal for indoor growers who have limited space.
Why LST?
Cannabis tends to develop a dominant main stem that consumes most of the energy and light resources. LST aims to break this dominance by training the plant horizontally so that side branches emerge and also develop into main stems.
Step-by-step guide to LST
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Preparation:
- Materials: Soft garden wire, plant training clips or twine, a hole punch or drill for the pot, and possibly bamboo canes for stabilization.
- Timing: Start training when the plant has developed 4-6 nodes (pairs of leaves) and is still flexible.
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Bending the main trunk:
- Choose a point on the main stem, approximately above the third or fourth node, and gently bend it downward.
- Secure the stem to the edge of the pot with garden wire or string so that it grows horizontally.
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Training side shoots:
- As new side shoots appear, gently bend them down and secure them to create a flat, broad canopy.
- Repeat this step regularly to control growth and keep the plant flat.
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Regular adjustments:
- Check the plant daily and adjust the supports as it grows.
- Make sure that all parts of the plant receive equal light and that no shoots are damaged.
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Flowering phase:
- Continue training until the plant begins to develop flowers.
- During the flowering phase, training is usually stopped so that the plant can focus its energy on developing flowers.
Advantages of LST
- Increased yield: More bud sites mean potentially higher yields.
- Space-saving: LST is especially useful for indoor grows with limited height.
- Better air circulation: A flatter plant allows for better air circulation, reducing the risk of mold and pests.
Tips and tricks
- Patience: Be patient and careful not to damage the plant.
- Regular monitoring: Check growth regularly and adjust training accordingly.
- Flexible tools: Use soft materials such as garden wire or pipe cleaners to avoid damaging the plant.
- Stability: Make sure the plant is well supported, especially as it grows larger.
LST is an effective and gentle method for improving the yield and quality of your cannabis plants. With a little patience and regular care, you can get the most out of your plant.