For those who have planted vegetables, I believe everyone has encountered this situation. After sowing the vegetable seeds, the germination rate of the seeds is very low, and the seedlings are uneven, and some even do not. The germination rate of vegetable seeds is mainly affected by temperature, humidity, and light. Only when these three requirements are met will the germination rate of seeds become higher and the seedlings grow stronger. In fact, before planting seeds, growers can first germinate the seeds to increase the germination rate of seeds.
1. Cruciferae
Chinese cabbage, radish, cabbage, cauliflower, rape, mustard greens, snow red, etc.
The germination temperature of these vegetable seeds is 15℃-30℃, and the suitable temperature range is wide. Because the seed coat is thin, there is no need to soak the seeds, sow directly in a small Petri dish, and germinate on paper. The seeds do not need to be washed during germination.
2. Cucurbitaceae
Zucchini, pumpkin, winter melon, watermelon, cucumber, loofah, bitter gourd, etc.
The germination temperature is preferably 25℃-30℃ constant temperature condition or 20℃-30℃ variable temperature condition. The temperature is too high or too low will affect the germination, except for cucumber and watermelon seeds do not need to soak (watermelon seeds soaking rate is not as good as unsoaked seeds High), before germinating, the rest of the seeds are soaked in warm water at 50°C for 15 minutes, and then soaked at room temperature for another 8 hours, using medium-sized petri dishes, paper or towels as germination beds, except for cucumber seeds In addition to panning, other seeds are panned 2-3 times before germination, the moisture in the germination bed should not be too large, and the germination period is 4-10 days.
3. Solanaceae
Bell pepper, chilli, eggplant, tomato, etc.
Such seeds germinate at a temperature change of 20°C-30°C or a constant temperature of 30°C**, especially when the eggplant seeds germinate under the conditions of temperature change, elutriation, drying, ventilation and ventilation. Use medium-sized petri dishes. Germinate on paper, spray a little water during germination, germination period is generally 5-12 days.
4. Liliaceae
Spring onions, onions, leeks, celery, fennel, spinach, coriander, nori, etc.
This kind of seed has lower temperature requirements. Only when the temperature is 15 ℃ or 20 ℃, can the seeds germinate well. If the temperature is too high, the seeds will not germinate. If the temperature is too low, the continuation of the physiological function of the seeds is not good for germination. Seeds are **** soaked in warm water for 5-7 hours, using small or medium petri dishes, most seeds are germinated on paper, coriander seeds ****** are germinated in soil, and a small amount of water is sprayed during the germination period. The germination period is 6-14 days, coriander is longer, it takes 7-21 days.
V. Gramineae
Corn, sorghum, rice
It is suitable to germinate at a temperature of 25℃-30℃, soak the seeds in warm water for 4-8 hours before rice germination, and soak the rice for 24 hours, use sand or towel roll as the germination bed, add enough water in the germination bed, and the germination period is 4- Around 10 days.
note:
For breaking seed dormancy, physical methods such as low temperature or variable temperature can achieve good results. For example, coriander, eggplant and other seeds that are difficult to germinate are pre-treated with a low temperature of 3℃ for 1 day, and then germinated under a variable temperature condition of 20℃-30℃, the germination rate can be as high as 80%-90% The germination rate of low-temperature treatment is increased by 20%-30%, and the germination is rapid and neat.
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