Paeonia ostii seed seedling-raising method

Abstract

The invention discloses a paeonia ostii seed seedling-raising method comprising the steps of seed collection and pod removing, seed treatment, seedling-raising substrate and container preparation, sowing and seedling-raising management, and transplanting. According to the method, mature pods are collected and air-dried; pods are removed, and seeds are subjected to winnowing; the seeds are soaked until testas are softened; the seeds are mixed or layered with wet river sand; disinfection is carried out, and a wet straw mat is used for covering the surface of the mixture of the seeds and river sand; according to the differences in seedling-raising seedling ages, different seedling-raising substrates are selected; plugs or soymilk cups are used for raising seedlings; wheat grains are sowed in the seedling-raising containers, and one paeonia ostii seed is placed at the center of each container; the container is placed under room temperature for 20 days, and low-temperature treatment is carried out; after seedling hardening, the seedlings are removed from the container and are transplanted; field planting is carried out, wherein the seedlings are placed in a ditch according to a certain plant spacing; soil covering is carried out, and the soil is compacted; and sufficient water is applied. With the method, paeonia ostii seed rooting is fast, emergence rate is high, growth is even, seedling root system is intact, and the survival rate after transplanting is high. Compared with other methods, with the method provided by the invention, seedling-raising processes such as seed treatment, rooting, emergence, secondary transplanting and the like are simplified, such that field planting and post management are convenient.

Description

technical field [0001] The invention relates to a seedling raising method of Fengdan seeds, which belongs to the technical field of plant seedling propagation. Background technique [0002] Peony (Paeoniasuffruticosa Andr.) is a deciduous shrub of the family Ranunculaceae (Ranunculaceae) Paeonia (Paeonia L.) peony group (Sect. Moutan DC.), endemic to my country. In addition to the high ornamental value and medicinal value of peony, the seeds of some peony varieties have high oil content, which can be developed and utilized as woody oil resources, that is, peony for oil. At present, the oil peony varieties widely promoted and planted in my country are mainly Paeoniaostii T. Honget J.X. Zhang and Paeoniarockii T. Hong & J. J. Li. In Shandong Province, the main planting area, Fengdan peonies account for more than 95%. The content of unsaturated fatty acids in peony seed oil is as high as 90%, and the content of α-linolenic acid is as high as 42%. Since peony seed oil was def...

AI Technical Summary

Problems solved by technology

[0007] Therefore, although there are many methods for raising seedlings of peony seeds, there is still room for improvement in terms of seed harvesting time, seed treatment, seedling raising operations, and transplanting management.

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