The growth process of garlic:

1, germination stage: germination begins after sowing 10- 15 days, and the roots mainly grow vertically.

2. Seedling stage: The 1 true leaf unfolds, and flower buds and scale buds begin to differentiate.

3. Scale bud and flower bud differentiation stage: the plant grows fully, and the growth of plant height and leaf area accelerates.

4, flower stem elongation period: garlic shoots grow rapidly, and the scale buds begin to expand.

5. Bulb expansion period: nutrients transfer to the bulb, and the bulb expands rapidly.

6. Dormancy period: Bulbs mature and enter a physiological dormancy period of more than 2 months.

Suitable conditions for garlic growth:

1, temperature:

Garlic likes cold environmental conditions. The lower limit of its adaptive temperature is -5℃ and the upper limit is 26℃.

After dormancy, garlic can sprout roots at 3-5℃, and the suitable temperature for stem and leaf growth is12-20℃. The optimum temperature for the development of flower stems and bulbs is15-20℃. When the temperature exceeds 26℃, the plants will be out of physiological balance, the stems and leaves will gradually dry up, and the underground bulbs will also stop growing. In areas where the average temperature in winter is below -5℃, garlic planted in autumn cannot overwinter naturally.

Garlic plants complete vernalization in the low temperature range of 0-5℃ for 30-40 days.

2. Lighting:

The flower bud and scale bud differentiation of garlic after vernalization began under the conditions of long sunshine and high temperature. It is only suitable for the growth of stems and leaves in short sunshine and cold environment. The formation of scale bud will be inhibited. Therefore, no matter spring sowing or autumn sowing, it is necessary to go through the conditions of low temperature and long sunshine. Generally, the growth of stems and leaves in places with sufficient sunlight and high temperature is worse than that in places with low temperature, but pseudobulb grows well.