A Detailed Guide to Paris polyphylla Seed Selection and Seedling Cultivation Methods

Paris polyphylla, also known as Qiye Yizhihua (seven leaves one flower), belongs to the Liliaceae family. With the development of its value, its medicinal value has attracted increasing attention, and market demand has further increased. However, as wild resources become increasingly scarce, more and more farmers are cultivating Paris polyphylla artificially. So how do you select Paris polyphylla seeds? What seedling cultivation methods are there? Let's take a look together below.

1. How do you select Paris polyphylla seeds?

Paris polyphylla seeds should be plump, mature, and free of disease, mildew, and damage. Mix them with clean fine sand at a 2:1 ratio, rub to remove the outer seed coat, wash clean, and soak in 500-fold carbendazim for 1 hour, then bury in moist sand. After treating at 20°C for 4 months, sow once the Paris polyphylla seeds have rooted. During this period, be careful to maintain moisture.

Paris polyphylla seeds are like giant pandas - they have after-ripening. That is to say, even when the seed shell naturally cracks open and the seeds look enticingly red, they are not actually mature in the true sense. In fact, their seed embryos have not yet formed, and they still need to go through a later stage of re-maturation to complete the full development of the embryo. This means that after the seeds are planted, it takes one spring and one winter - two years - before they sprout.

Based on the above situation, the problem that Paris polyphylla seeds need two years after being planted in the ground brings with it many issues. The too-long time in the ground leads to many problems with the seeds: not enough water and the seeds do not sprout, too much water and the seeds rot, poor disinfection and the seeds rot, too many soil bacteria and the seeds rot, and so on - a whole series of problems.

2. What seedling cultivation methods are there for Paris polyphylla?

1. Selection of seedling cultivation site

The seedbed for Paris polyphylla should be chosen on higher ground with good drainage, with soil rich in organic matter, in a well-shaded (20% light transmittance) clearing under forest or on a slope. For dry land, 3 to 4 layers of shade netting must be set up. Choose a sunny day to plow the field and level it into beds. The bed surface width is 120 cm, the ditch width is 30 cm, and the ditch depth is 25 cm. The ditches must be unobstructed to facilitate drainage.

2. Sowing and seedling cultivation

The treated seeds can be sown in hills or in drills, or broadcast. Sow into humus soil and fine sand (2:1), cover the seeds with a thin layer of soil 1.5 to 2 cm, then cover with pine needles to retain moisture. This not only helps the seedlings emerge, but also helps the cotyledons shed their shells and ensures the emergence rate.

During this period, maintain a moist and shaded environment for the seedbed; avoid soil compaction, drying, and excessive sunlight. Seedlings generally emerge in 3 to 4 months.

3. Transplanting

Seed seedlings are transplanted 3 years after emergence, with a plant spacing of 10 x 20 cm. Cut pieces with terminal buds are planted at a plant spacing of 10 x 20 cm. Cut pieces without terminal buds are dug out in the second winter when adventitious buds have already formed, and planted at a plant spacing of 20 x 30 cm. After transplanting, cover with pine needles or humus soil to retain moisture and maintain a shaded environment. Transplanting time should be in winter, after the above-ground stems have fallen and while the rhizomes are dormant. During transplanting, be careful to protect the terminal buds and fibrous roots from damage.

Currently, there are basically two ways to grow Paris polyphylla seedlings. One is traditional seedling cultivation, which means scattering seeds naturally in the ground; in the first year very few or even no seedlings emerge, and only in the second year do they begin to emerge. The other way is artificial intervention to force sprouting, breaking the natural pattern of Paris polyphylla seeds to make them emerge earlier. Artificial forcing now comes in all sorts of varieties: the primitive sand storage forcing, forcing with artificial hormones, and many other types.

The above is an introduction to Paris polyphylla. Friends who want to grow Paris polyphylla must understand its physiological habits. During the seedling cultivation process of Paris polyphylla, poor nutrient combinations and management, as well as unscientific methods of breaking dormancy, often damage the growth of Paris polyphylla, thus affecting its yield and quality.

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