Explanation on the main points of sowing and Seedling raising and seed Collection of Peony

What are the key points of peony seeding and seed collection? Peony seeding and seedling cultivation includes timely seeding, seed treatment, whole bed planting, seedling management, seedling transplanting, selection, retention and farming. On the whole, peony cultivation and propagation methods are quite simple. Please see the following points of peony seeding and seedling cultivation and seed collection.

[Peony seeding and seedling raising technology]

I. Timely sowing

1. Seed selection: peony seeds should be sown in the same year.

2. Sowing time: sow from late August to early September

II. Seed treatment

1. Soak in warm water at 50 ° C for 24-48 hours before sowing. The seed coat softens and absorbs water to expand, which is conducive to seed germination.

2. After soaking seeds, stir and sow with appropriate amount of plant ash, which is conducive to seed emergence.

III. Planting under the whole ridge

1. Apply sufficient base fertilizer, deep turning and leveling, and seed under the ridge (ridge height 8-10cm, width 35-50cm, ridge spacing 30cm).

2, sowing density: according to the row spacing of 6-9 m, plant spacing of 3-4 cm for sowing, seed amount per mu for 25-35kg, after sowing covered with 2 cm thick soil, covered with plastic film moisture, to prevent rain impact, in February of the next year to remove the plastic film.

IV. Seedling management

1. After sowing for 30 days, the seeds can send out young roots. When the seeds germinate, remove the covering soil and remove the plastic film, and loosen the topsoil.

2. Seedling growth mainly depends on base fertilizer. For 2-year-old seedlings, nursery management should be strengthened, topdressing and watering should be timely applied, and soil should be loosened in time to preserve moisture in rainy season.

V. Transplanting seedlings

1. Transplant one-year seedlings in September. When seedlings are raised, dig a ditch 60cm deep from one end of the border and shovel them vertically into the soil. Loosen the soil and seedlings together into the ditch and pick out the seedlings. Plant them separately according to their size. The large seedlings are prepared for planting. The seedlings are densely planted in the border until they grow up and transplanted.

2. Seedling transplanting density: row and plant spacing is generally 60cm×50cm, 22200 holes are dug per mu, two seedlings are planted in each hole for 1 year, and one seedling is planted in each hole for 2 years.

VI. Selection, retention and farming

According to the tree age and growth condition, 5-year-old peony seeds were selected as the main breeding objects.

[Peony Seed Collection Points]

I. Seed collection time

1. When the fruit is crab yellow in autumn, it can be harvested. Peony harvest can not be too early or too late, too early seeds are not mature enough, too late seed coat hard black hair is not easy to emerge.

2, peony planting when collecting seeds, sowing too late, will reduce the emergence rate, to wait until the third year to sprout.

3. Due to the different varieties of peony, it is necessary to harvest according to local conditions and harvest in batches.

II. Seed collection method

When harvesting, the crab yellow fruits will be picked and stacked in a cool and ventilated place, so that the seeds continue to complete the post-ripening work, and then turn once every 2-3 days, and after 10-15 days, the seeds will turn brown from yellow-green to black, and the pericarp will crack. At this time, do not expose to the sun, and should be stacked in the original place to wait for the seed coat to harden (the stacking place should not be too wet to avoid seed decay). The seeds will be picked up and sown 5 days before sowing.

What are the types of peony? Peony seeding method

Peony fruit is spindle shaped, seeds are round, oblong or pointed round. Peony is praised as "flower fairy" and "flower phase", and is listed as one of the "six famous flowers", also known as "May flower god", because since ancient times as a flower of love, has been respected as the representative flower of Qixi Festival. So what are the classifications and what are the sowing methods? Tell you what.

What are the types of peony?

Flowers consist of single flowers.

1. Melaleuca subclass: petals naturally increase centripetal, orderly arranged, similar in shape, gradually decreasing from outside to inside; stamens are only born around the ovary, decreasing with the increase of petals until they disappear. Flowers flat.

1.1 Monopetalous: Petals in 2 - 3 whorls, broad, with normally developed stamens and pistils, usually referred to as the original type.

1.2 Lotus type: petals 4~5 whorls, broad, similar in shape and size, stamens normal or individual stamens divided into broken petals, lanceolate petals or whiskers scattered in stamens; pistil normal.

1.3 Chrysanthemum type: petals in more than 6 whorls, gradually decreasing from outside to inside, stamens normal, less in number; pistil normal, increased or decreased in number.

1.4 Rose type: petals extremely increased, gradually reduced from outside to inside, stamens all disappeared; pistil normal, reduced or completely disappeared.

2. Subclasses: broad outer petals, 2~3 whorls; stamens centrifugally petalized, pistil normal, petalized or degenerated. Floral raised or towering (except gold stamen type).

2.1 Gold pistil type: outer petal is broad, 2~3 whorls, stamen anther enlarges, filament thickens, stamen group shows bright golden yellow; pistil is normal.

2.2 Tortoise-type: broad outer petals, 2~3 whorls, stamens completely petalized into beard-shaped petals, needle-like petals or lance-like petals, slightly larger from outside to inside, erect in the outer petals; pistil normal or petals into tongue-shaped petals, tongue-shaped petals color or petal end color is often stigma primary color.

2.3 Golden ring type: outer petals broad, 2~3 whorls, stamens mostly petalized, petalized petals towering, but stamens change petals and outer petals residual ring of normal stamens; pistil normal or petalized.

2.4 Crown type: outer valve is broad and spreading, 2~3 whorls, next to outer valve, ring a small number of beard-shaped petals, needle-like petals, lance-like petals or broken petals, on which stamen petals are formed into tongue petals or lance-like petals, erect, raised, clustered in outer valve, with a small number of stamens in center, or degenerated into short state; pistil normal or petalized, degenerated.

2.5 Hydrangea type: stamens most petals into tongue petals, similar to the second outer petals, full flowers in full bloom, shaped like hydrangea, the central stamen very few or degenerate; pistil reduced or degenerate.

Peony seeding method

1. seed collection

When follicles turn yellow, they can be harvested, premature seeds do not become hot, and late seed coats turn black and hard and are not easy to emerge. Fruit maturity early and late, to harvest in batches, peel cracking out seeds, can be sown, do not expose seeds, so that seed coat hardens, affecting emergence. If you can't sow in time, sand storage moisture treatment is feasible, but you must take out the seeds before they take root.

2. sowing time

Peony must be harvested in the same year that timely sowing, such as Heze area in late August to late September sowing, if late in September, then that year can not take root, the next spring germination rate will be greatly reduced; and, even if the emergence, because the seedling root system is not developed, difficult to resist spring drought, easy to die. Therefore, Heze several spring sowing experiments, all failed.

3. sowing method

Seed treatment: Before sowing, the seeds to be sown should be removed from shriveled grains and impurities, and then the unfilled seeds should be removed by water selection. Although the seed coat of peony is thinner than peony, it is easier to absorb water and sprout, but if the seed is treated before sowing, the germination rate will be more orderly and the germination rate will be greatly improved, often reaching more than 80%. The method is to soak seeds in warm water at 50℃ for 24 hours, and sow them immediately after taking them out.

Complete ridge sowing: the sowing and seedling land should be fully fertilized, and deep ploughing and leveling can be done directly if the soil is moist and suitable for sowing; if the moisture content is poor, it should be fully irrigated, and then the ridge sowing can be done. The width of the ridge is about 50 cm, the distance between the ridges is 30 cm, the seeds are sown according to the row spacing of 6 cm and the grain spacing of 3 cm; if the seeds are sufficient, it is feasible to withdraw the seeds, and the grain spacing is not less than 3 cm; after sowing, cover them with wet soil, and the thickness is about 2 cm. About 50 kg of seed per 666.7 m2 and about 100 kg of sowing. After sowing, cover with plastic film, sprout in the spring of the following year and withdraw. It is also feasible to drill, with a strip spacing of 40 cm, a grain spacing of 3 cm, and a soil covering of 5~6 cm; or to conduct hole sowing, with a hole spacing of 20~30 cm, 4~5 seeds per hole, and a soil pile of 10~20 cm after sowing, so as to prevent cold and preserve moisture. Rake flat before budding the following spring.

Cultivation of new varieties by peony sowing method

There are many traditional propagation methods of peony. The sowing method is only used to cultivate broken varieties, produce rootstocks of grafted peony and produce medicinal materials. Today we are mainly going to understand the techniques of peony sowing method.

The seeds of peony are follicles, each follicle containing 1~7 seeds. When the seed matures, follicles dehisce and seed is released. Fruit maturity varies from place to place, such as Mudanjiang in Heilongjiang Province in early September, Heze in Shandong Province in late August, Luoyang in Henan Province in early and middle August, Yangzhou in Jiangsu Province around late August. Seeds should be sown immediately after harvest. With the delay of sowing time, the moisture content and germination rate of seeds decreased. The seed has double dormancy of hypocotyl and epicotyl. The soil temperature in autumn after sowing makes hypocotyl release dormancy and radicle develop and take root. The better the rooting situation in that year, the more vigorous the growth in the next year; if the sowing is too late, the ground temperature cannot release the hypocotyl dormancy and cannot produce very much, the germination rate in the spring of the next year is greatly reduced. After sowing and rooting in autumn, the dormancy of epicotyl can be released after a long period of low temperature in winter. The following spring, when the temperature rises and the humidity is suitable, the embryo is unearthed.

Because the progeny characters of peony horticultural varieties are separated and cannot maintain the excellent characters of the original varieties, the sowing method cannot be used for the propagation of seedlings.

1. seed collection

When follicles turn yellow, they can be harvested, premature seeds do not become hot, and late seed coats turn black and hard and are not easy to emerge. Fruit maturity early and late, to harvest in batches, peel cracking out seeds, can be sown, do not expose seeds, so that seed coat hardens, affecting emergence. If you can't sow in time, sand storage moisture treatment is feasible, but you must take out the seeds before they take root.

2. sowing time

Peony must be harvested in the same year that timely sowing, such as Heze area in late August to late September sowing, if late in September, then that year can not take root, the next spring germination rate will be greatly reduced; and, even if the emergence, because the seedling root system is not developed, difficult to resist spring drought, easy to die. Therefore, Heze several spring sowing experiments, all failed.

3. sowing method

Seed treatment: Before sowing, the seeds to be sown should be removed from shriveled grains and impurities, and then the unfilled seeds should be removed by water selection. Although the seed coat of peony is thinner than peony, it is easier to absorb water and sprout, but if the seed is treated before sowing, the germination rate will be more orderly and the germination rate will be greatly improved, often reaching more than 80%. The method is to soak seeds in warm water at 50℃ for 24 hours, and sow them immediately after taking them out.

Complete ridge sowing: the sowing and seedling land should be fully fertilized, and deep ploughing and leveling can be done directly if the soil is moist and suitable for sowing; if the moisture content is poor, it should be fully irrigated, and then the ridge sowing can be done. The width of the ridge is about 50 cm, the distance between the ridges is 30 cm, the seeds are sown according to the row spacing of 6 cm and the grain spacing of 3 cm; if the seeds are sufficient, it is feasible to withdraw the seeds, and the grain spacing is not less than 3 cm; after sowing, cover them with wet soil, and the thickness is about 2 cm. About 50 kg of seed per 666.7 m2 and about 100 kg of sowing. After sowing, cover with plastic film, sprout in the spring of the following year and withdraw. It is also feasible to drill, with a strip spacing of 40 cm, a grain spacing of 3 cm, and a soil covering of 5~6 cm; or to conduct hole sowing, with a hole spacing of 20~30 cm, 4~5 seeds per hole, and a soil pile of 10~20 cm after sowing, so as to prevent cold and preserve moisture. Rake flat before budding the following spring.

Peony seeding is generally used when cultivating new varieties. Seed life is short, should be picked with sowing, sowing in the autumn germination of young roots, the next spring budding. Paeonia lactiflora seedlings develop slowly, and those that grow fast can bloom in four or five years.