The fastest methods for potato germination include soaking in warm water, sand storage for germination, gibberellin treatment, dark environment control, and sectioning treatment.
1. Soak in Warm Water
Soak intact potatoes in warm water at around 40 degrees Celsius for 10 minutes, then remove and place them in a moist environment. Warm water can break the dormant state of potatoes and stimulate the activity of bud eye cells. When operating, pay attention to the water temperature not being too high to avoid burning the potato chunks. After processing, maintain the humidity in the environment, and obvious sprouting of buds can usually be seen within 3-5 days.
2. Sand storage and germination
Use moist river sand and potatoes stacked in layers to maintain the moisture content of the sand at around 60%. The gaps between sand particles can provide good breathability, and a humid environment can continuously supply moisture. When the temperature of sand storage is maintained at 15-20 degrees, the germination rate of buds is faster. This method is suitable for batch germination and requires regular flipping and inspection to avoid mold growth.
3. Gibberellin treatment
Soaking the cut pieces in a 50 mg/L gibberellin solution for 10 minutes can significantly promote starch conversion and cell division. Gibberellin, as a plant growth regulator, can replace low temperature conditions to break dormancy. The processed potato chunks should be dried with surface moisture before sprouting to avoid excessive concentration of pesticides that can inhibit growth.
4. Dark environment control
Wrap potatoes in black plastic bags and place them in an 18 degree environment. Dark conditions can induce plants to produce more auxin. Pay attention to daily ventilation to prevent excessive humidity inside the bag from causing decay. The sprouts generated by this method are relatively robust and suitable for cultivation needs that require the cultivation of short and strong sprouts.
5. Slice Processing
Cut large potato chunks into small pieces of 30-50 grams, retaining 1-2 robust bud eyes per piece. Drying the cut surface to form callus tissue and promoting germination can increase the number of sprouting points per unit weight of potato chunks. When cutting, the cutting tool needs to be disinfected with alcohol to prevent bacterial infection. This method can improve the utilization rate of seed potatoes, but attention should be paid to the risk of incision decay. The selection of healthy and disease-free seed potatoes is the basis for successful germination, and there are differences in the dormancy period of different varieties of potatoes. It is advisable to maintain an ambient temperature of 15-20 degrees Celsius for spring germination, and electric blankets can be used to assist in warming up in winter. During the sprouting period, regularly check the condition of the potato chunks and promptly remove any mold found. When the bud reaches about 1 centimeter in length, it can be sown. If it is too long, it is easy to break and affect survival. Moderate cooling and bud refinement three days before sowing can improve the adaptability after transplantation. Combined with loose and fertile soil conditions, potato yield and quality can be significantly improved.
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