First try - Blueberry Candiez

mattoni First growing experience. I had a variety of seeds of different strains. I want to test one to inform the setup for the next ones. I decided to test a seed to see what I would get without any setup. South-European Atlantic coast, where it is usually warm and sunny until the end of September/mid-October. The balcony is bathed in sunlight all day long, from 6:30am to 8:30am (give or take), so I am hopeful. The temperature during the first week has been between 26°C (max during the day) and 18°C (min during the night). 29/07 (night) Humid paper towel inside a plastic box. 31/07 (morning) The seed's taproot stuck out by about 1 cm. 31/07 (night) I moved it to a hydrated coconut fibre (small vase) inside a transparent plastic box. The box remained slightly open during the day and closed at night, no direct sunlight. 02/08 The baby came out about 1 cm. It is still staying in the plastic box, which is slightly open during the day and closed at night, no direct sunlight. 03/08 It is growing faster and has started to develop its first real leaves and strong root. It was moved to a 10 L plastic vase with soil mix: - organic living soil (4 kg). - coco coir (0.4 kg). - perlite (0.1 kg). - worm casting (0.5 kg). - compost (0.5 kg). I prepared the soil mix three days before, plus I had higly hydrated in the beginning, to gave it time to set. 04/08 It continues to grow. Direct sun-light. Started LST. Hydrated the soil with 0.1 L of water + BIOCANNA Vega (0.2 ml/L). 05/08 There is burning on a leaf. Also, leaf growth has slowed down. Could this be due to the training? Or too much direct sunlight? 06/08 Leaf growing continues slow. Hydrated the soil with 0.1 L of banana water.