Study on the Formation and Growth of the First Generation of Pinellia ternata in Soil Li Hongjun Li Lei (Shandong Heze Runkang Chinese Medicine Research Institute) Abstract : Objective: To study how the first generation buds of Pinellia ternate can be formed in the soil and provide scientific basis for the artificial high-yielding cultivation of Pinellia ternate. METHODS: The tuber of Pinellia trifoliata from Heze of Shandong Province was selected as the experimental propagation material. According to the biological characteristics of Pinellia ternata, the lowest temperature at the petiole was 13 degrees Celsius. Artificial measures were taken to control the difference between the temperature and the air temperature to observe the formation of bulblets in the soil. Time, location. Results: Artificial control of the ground temperature is higher than the temperature, the ground temperature above 8.5 degrees Celsius, the temperature below 13 degrees Celsius, the longer the time, the more petiole in the soil, the greater the growth of the buds formed on the petiole. Conclusion: The first buds of Pinellia are formed and grown in the soil, which can increase the yield by 50%, and the quality rate is more than 60%. Key words: pinellia, bulbil, formation in soil. Pinellia is a perennial herb of Araceae, alias P. ternata, P. ternata, etc. [Pinellia ternata (Thunb.) Breit]. Pinellia was originally wild and distributed in most of the provinces and cities of the country. With the development of agricultural production, waste lands in open waste lands have been cultivated into fertile fields and cultivated deeply, coupled with the extensive application of chemical fertilizers, pesticides, and herbicides, resulting in the loss of wild conditions in Pinellia. The foundation and resources have been reduced. Most of the wild Pinellia bases in the country have almost disappeared. In order to ensure that the people need it. The supply of the market and the development of the wild species of Pinellia were successively carried out throughout the country. Although in many places the Pinellia family was successful, the field cultivation was low but unstable, and the efficiency was poor. According to the biological characteristics of Pinellia and observations in recent years, one of the main factors affecting its yield is the amount and time of bulblet formation. In particular, how the first generation of bulbar buds were formed and grown in the soil in advance will be studied. The observations are reported as follows: 1, materials and methods 1ã€1 Materials: Select the wild tuber of Three-leaf Pinellia tuber in Heze of Shandong province, which was selected and bred by Heze City Runkan Institute of Chinese Medicinal Materials for many years. The tuber is 1.5-2.5cm in size, and the texture is firm, the bud head is full, and the tuber is 10kg. 1ã€2 Method: Experimental cultivation site Huangpi Town Demonstration Park, Heze City, land area 100m 2 The soil is sandy loam, and the terrain is relatively flat with drainage and irrigation conditions. The front crop of the plot was soybean. After the soybean was harvested (October 24th), winter tillage was conducted. On February 20, 300 kg of fermented chicken manure was used after the surface of the drenched ground was dry. On behalf of (20 kg), 30 kg of cottonseed cake, 10 kg of superphosphate, 3 kg of potassium sulfate, 1 kg of sloping ground and ploughed, and then used to make tubers of Pinellia tuber invade 800 times the liquid, 50% of carbendazim The water solution was filled into plastic bags for 2 hours to prevent germination in the plastic greenhouses of vegetable farmers. It was placed on February 18. On the 6th of March, 80% of tuber sheaths were white, such as rice grains. Within the entire line, the line spacing is 20 cm, the depth is 8 cm, and the width of the bottom is 5 cm. After covering the tuber with 6 cm of soil, it is compacted and covered with acetochlor herbicide. 2. Results and Discussion 2. On the 2nd of July, check that 70% of the bulbous buds have been removed from the ground. The whole plant was observed and found to have 8-12 primary roots at the top of the tuber, 1-3 petioles balanced from the tuber's coleoptile, and one bead on each petiole about 4 cm from the tuber. -0.4 cm, especially in the upper part of the bead, the primary root marks have been revealed and the buds have sprouted. 2, 2 to take early wet germination, can make the formation of stout petiole, and can extend the reproductive period of 20 - 30 days. On the 6th of March, the germinated tuber was sown. At that time, the temperature of 5 centimeters was 7.5 degrees. After sowing, it covered the film. The temperature of 5 centimeters rose to 10-12 degrees, which exceeded the ground temperature required for the sprouting of Pinellia tuberculata by 8.5 degrees. Therefore, the buds that have been elicited continue to grow in the soil. At this time, the temperature was below 12 degrees, and it was only 13.6 degrees above the lowest biological starting point on April 2 when the temperature reached the petioles. The petioles were exposed on the ground. From the sowing on March 6th to April 2nd, during the effective 25-day period, the petioles are constantly growing in the soil, and at the same time, they also promote the rapid formation and growth of buds. Petioles are synchronously developed). Because the bulblets have unique viability, the first generation of bulblets formed in the soil, even if they have not yet separated from the maternal petioles, have not yet matured, and the primary roots and the soon-to-be-emerged budding sheaths have been revealed and soon formed. Another new plant was studied to observe the bulbous shoots formed in the soil in each tuber. In May, a second generation of bulbous buds was soon formed, and the first generation of bulblets formed in the soil became the parent stems. 2-4 new plants can be added soon, which can increase production by more than 50% compared with ordinary cultivation methods. The planting method is a series of advanced technical measures implemented from selection and breeding of fine varieties of Pinellia sinensis, sowing time, methods, and management. The adoption of this method can improve the Pinellia production by more than 60%, and the quality of Pinellia products produced can reach 80% of exports. standard. 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