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Growing environment requirements and suitable cultivation conditions for Pinellia ternata

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Pinellia ternata is a shallow-rooted plant that prefers fertile soil, and was originally mostly found growing wild on moist, loose, and fertile sandy loam or humus soil. It prefers a mild, humid climate and a shaded environment, is afraid of drought, and avoids high temperatures. In summer, it is best grown in a semi-shaded, semi-sunny environment; it grows relatively well when soil moisture content is 20%-40%; drought and water shortage easily cause the seedlings to fall over. Generally, with changes in the growing environment, it can fall over 1-3 times a year. For Pinellia ternata, falling over is, on the one hand, an adaptation to adverse conditions, and more importantly, it increases the number of bulbils, that is, it carries out one round of asexual

Pinellia ternata is a shallow-rooted plant that prefers fertile soil, and was originally mostly found growing wild on moist, loose, and fertile sandy loam or humus soil. It prefers a mild, humid climate and a shaded environment, is afraid of drought, and avoids high temperatures. In summer, it is best grown in a semi-shaded, semi-sunny environment; it grows relatively well when soil moisture content is 20%-40%; drought and water shortage easily cause the seedlings to fall over. Generally, with changes in the growing environment, it can fall over 1-3 times a year. For Pinellia ternata, falling over is, on the one hand, an adaptation to adverse conditions, and more importantly, it increases the number of bulbils, that is, it carries out one round of asexual reproduction using bulbils as propagating material.

Pinellia ternata begins to sprout and grow at 8-10°C, starts to germinate and emerge at 15°C, with 15-26°C being the optimum growing temperature. Growth slows above 30°C, and when the temperature exceeds 35°C and there is also a lack of water, the seedlings begin to fall over, surviving adverse conditions as underground tubers. When the weather becomes cool in autumn, the seedlings emerge again and continue to grow, and after autumn, when the temperature falls below 13°C, the leaves begin to wither.

The tubers, bulbils, and seeds of Pinellia ternata all lack physiological dormancy characteristics. Seed longevity is 1 year.

For tubers sown in winter or early spring, when the soil temperature at 1-5 cm below the surface reaches 10-13°C, the petioles emerge. If at this time the surface air temperature continues to be lower than the above soil temperature for several days, the petioles then grow horizontally in the soil and at the same time produce one generation of bulbils. The longer the duration of the difference between soil and air temperature, the longer the petioles grow horizontally in the soil, and the larger the underground bulbils become. When the air temperature rises to 13-15°C, the petioles then grow upright out of the soil surface.

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