Promotes Vegetative Growth: Blue light (400-500 nm) encourages compact, sturdy growth by stimulating leaf and stem development. It helps plants develop strong structures, preventing leggy or weak seedlings.

Enhances Photosynthesis: Blue light is efficiently absorbed by chlorophyll, boosting photosynthetic activity. This leads to healthier, more vigorous starter plants with better energy production.

Regulates Plant Morphology: Blue light influences phototropism and prevents excessive stretching (etiolation), keeping seedlings short and bushy, ideal for transplanting.

Stimulates Root Development: Blue light can promote root growth, leading to stronger root systems that improve nutrient and water uptake.

Improves Leaf Color and Quality: It enhances the production of pigments, resulting in vibrant, healthy green leaves, which are critical for efficient photosynthesis.

Prepares Plants for Transition: Exposure to blue-dominant light mimics natural spring 
conditions, preparing seedlings for outdoor environments or full-spectrum grow lights.