How to plant peony seeds?

The fruit of Paeonia lactiflora is peony, and each peony contains 1-7 seeds. When the seeds are ripe, the oysters crack and spread the seeds. Fruit ripening periods vary in different places, such as Mudanjiang in Heilongjiang Province in early September, Heze in Shandong Province in late August, Luoyang in Henan Province in early and mid-August, and Yangzhou in Jiangsu Province around late August. Seeds should be sowed immediately after harvest. With the delay of sowing time, the water content of seeds decreased and the germination rate decreased. The seed has the characteristics of double dormancy of Hypocotyl and Hypocotyl. After sowing, the soil temperature in autumn makes the Hypocotyl of the seed release dormancy and the radicle develops and takes root. The better the rooting in the current year, the more vigorous the growth in the coming year; if the sowing is too late, the ground temperature can not release the Hypocotyl dormancy, and the germination rate will be greatly reduced in the following spring. After sowing and rooting in autumn, the dormancy of Hypocotyl can be relieved after a long period of low temperature in winter. The following spring, when the temperature rises and the humidity is suitable, the germ will be unearthed.

Harvest methods of Paeonia lactiflora seeds

When the follicles turn yellow, they can be harvested, the seeds are not hot prematurely, and the seed coat blackens and hardens at a later time. Fruit ripening sooner or later, should be harvested in batches, pericarp cracking scattered seeds, you can sow, do not expose the seeds, so that the seed coat hardened, affecting seedling emergence. If the seeds can not be sowed in time, it is feasible to store sand to keep moisture, but the seeds must be taken out and sown before the seeds take root.

Sowing time of Paeonia lactiflora

Paeonia lactiflora must be sown in time in the same year, such as sowing in late August to late September in Heze area, if it is later than late September, it will not be able to take root in that year, and the germination rate will be greatly reduced in the next spring; moreover, even if seedlings emerge, because the roots of seedlings are not developed, it is difficult to resist the drought in spring and is easy to die. Therefore, Heze several spring sowing experiments, all failed.

Sowing methods of Paeonia lactiflora seeds

1. Seed treatment: before sowing, remove the shrunken seeds and impurities from the seeds to be sown, and then remove the unsubstantial seeds by water selection. Although the seed coat of Paeonia lactiflora is thinner than that of peony, it is easier to absorb water and germinate, but if the seed is treated before sowing, it will germinate more neatly, and the germination rate will be greatly improved, often reaching more than 80%. The method is to soak the seeds in 50 ℃ warm water for 24 hours and sow them immediately after being taken out.

2. Whole-bed sowing: the sowing and seedling-raising land should be fertilized with sufficient base fertilizer, and if the soil is moist and suitable for sowing, you can do border sowing directly; if the soil moisture is poor, you should fully irrigate it, and then do border sowing. The width of the border is about 50 cm, the distance between the borders is 30 cm, and the seeds are sown according to row spacing of 6 cm and seed spacing of 3 cm. If the seeds are sufficient, the seed spacing is not less than 3 cm, and the seed spacing is not less than 3 cm. After sowing, it is covered with wet soil with a thickness of about 2 cm. Use about 50kg of seed and sow about 100kg per 666.7 square meters. Cover with plastic film after sowing and remove it after sprouting and unearthing in the following spring. It is also feasible for strip sowing, strip spacing 40 cm, grain spacing 3 cm, covering soil 5 cm, or row hole sowing, hole spacing 20 cm, 5 seeds per hole, and soil pile 10 cm 20 cm after sowing, in order to prevent cold and preserve moisture. Rake it flat before sprouting in the following spring.

Note: because the characters of the offspring produced by sowing of peony horticultural varieties are separated and can not maintain the good characters of the original varieties, the sowing method can not be used for the reproduction of seedlings of varieties.