CN101438643B - Method for treating seed for seedling culture of Idesia polycarpa Maxim. var. vestita Diels - Google Patents

Abstract

The invention discloses a seed treatment method for raising seedlings of Idesia polycarpa. The method comprises the following steps: soaking seeds of the Idesia polycarpa in an extracting solution of fruit shells of Chinese soapberry which is also named Sapindus mukorossi for 4-48h; kneading and cleaning the soaked seeds; and raising the seedlings with the treated seeds on a seedbed. Each liter of the fruit extracting solution is obtained by extracting 5-50g of the mashed fruit shells of the Chinese soapberry on the dry basis at the temperature 25-100 DEG C for 1-24h.

Description

The method for treating seeds that Idesia polycarpa is grown seedlings

Technical field

The present invention relates to a kind of method for treating seeds that Idesia polycarpa is grown seedlings.

Background technology

Idesia polycarpa (Idesia Polycarpa Var.Vestita Diels) is the mutation that the Flacourtiaceae idesia belongs to, and is deciduous tree.The unsaturated fatty acid content of Idesia polycarpa oil is greater than 80%, and linoleic acid content is greater than 70%, and content of vitamin E is greater than 1 ‰, do not contain poisonous harmful components, it is the edible oil of high-quality, also is to extract linoleic acid, vitamin E, the excellent raw material of preparation biodiesel and senior lubricant.The Idesia polycarpa phase of abounding with reached more than 40 years, and the phase single plant yield of abounding with can reach 200kg (dry fruit), dry fruit oil content 38～42%.The Idesia polycarpa well developed root system, maintenance function waterborne is strong.The Idesia polycarpa trunk is perfectly straight, is pagoda shape, and the phase of bearing fruit is long, and fruit ruby has ornamental value.Idesia polycarpa is wooden careful, and is not yielding, is rich in toughness.Idesia polycarpa has the bigger economic worth and the ecological value, and its development and use have caused researcher's attention.Idesia polycarpa is in wild state substantially at present, mainly is distributed in Guangyuan City zone, Sichuan.Idesia polycarpa reproduction rate under natural endowment is lower, and therefore successful seedling-cultivating method becomes the key of development and use Idesia polycarpa resource.The seedling-cultivating method of Idesia polycarpa mainly contains seed seedling-raising at present, root is inserted and grafting.Grafting is to shorten it to bear fruit the phase with the branch grafting on the Idesia polycarpa seedling of growing up, main purpose, but its seedling depends on seed seedling-raising and root is inserted.Root is inserted and is adopted tender of the Idesia polycarpa tree to carry out cuttage, can influence the growth of getting the root tree, also depends on seed seedling-raising to a certain extent root is provided.The Idesia polycarpa seed seedling-raising method of having studied mainly contain with washing powder, vegetation buck to seed soak, the method sowed after cured is gone in rubbing, washing and with the method for growing seedlings after the biphosphate Potassium solution soaking.The former percentage of seedgermination is not high, and planting percent is also lower; There is seedling incidence of disease problem of higher in the latter.In sum, successful seed seedling-raising method is the key of development and use Idesia polycarpa, and successful method for treating seeds is the key of seed seedling-raising method.

Summary of the invention

Problem at current Idesia polycarpa seedling-cultivating method existence, the objective of the invention is to seek a kind of percentage of seedgermination height, the seedling incidence of disease is low, the method for treating seeds of the Idesia polycarpa seed seedling-raising that planting percent is high, it is characterized in that the Idesia polycarpa seed at soapberry, having another name called oil suffers from the fruit shell leaching liquid of son (Sapindus mukorossi) and soaking 4～48 hours, soaking temperature is 3～25 ℃, seed after the immersion is crumpled and is washed, and rubbing washing degree is that the surperficial wax coat of Idesia polycarpa seed is destroyed.Seeds treated enters the seedbed and carries out seedling culture.Every liter of soapberry fruit shell leaching liquid restrains with the soapberry fruit shell of smashing to pieces 5～50 in butt weight, leaching temperature is 25～100 ℃, leaching time is 1～24 hour, replenishes the water yield of evaporation loss in the leaching process in good time, or finishes the water yield that the back replenishes evaporation loss in leaching.Leaching finishes the back filters and removes leach residue, the temperature of leaching liquid is dropped to soak the immersion that the Idesia polycarpa seed is used for the Idesia polycarpa seed after temperature required.

The object of the present invention is achieved like this: soak the Idesia polycarpa seed with soapberry fruit shell leaching liquid, it is destroyed by the rubbing washing methods to help its surperficial wax coat, enters in the seed body thereby help moisture, guarantees seed germination rate; Soapberry fruit shell leaching liquid toxicity is lower, can alleviate to the injury of seed with to the potential injury of its seedling, can reduce the incidence of disease of seedling.

With respect to existing method, the preparation material that the present invention is used for the soapberry fruit shell leaching liquid of seed treatment is that natural material toxicity is low, consumption can accurately be controlled, can guarantee that healthy seed germination rate is greater than 99%, the seedling incidence of disease is less than 2%, planting percent is greater than 96%, and the limiting factor of growing saplings is few, helps large-scale application.

Specific implementation method

Embodiment 1: soaked 50 gram Idesia polycarpa seeds 10 hours with 0.5 liter of soak of the dried shell preparation of 5 gram soapberry fruits, after the rubbing washing is with its surface wax damage layer, it is sowed in the seedbed, after 45 days, obtain above seedling 10546 strains of 4 true leaves, planting percent 97.5% is transplanted to the nursery and is obtained 1.2～1.5 meters high one-tenth seedling 10473 strains after 7 months, total planting percent 96.5%.

Embodiment 2: soaked 10 gram Idesia polycarpa seeds 28 hours with 0.2 liter of soak of the dried shell preparation of 3 gram soapberry fruits, after the rubbing washing is with its surface wax damage layer, it is sowed in the seedbed, after 45 days, obtain above seedling 2122 strains of 4 true leaves, planting percent 98.1% is transplanted to the nursery and is obtained 1.2～1.5 meters high one-tenth seedling 2089 strains after 7 months, total planting percent 96.6%.

Claims (1)

1. method for treating seeds that Idesia polycarpa is grown seedlings, it is characterized in that the Idesia polycarpa seed at soapberry, have another name called in the sub fruit shell leaching liquid of oil trouble and soaked 4～48 hours, soaking temperature is 3～25 ℃, seed after the immersion is crumpled and is washed, rubbing washing degree is that the surperficial wax coat of Idesia polycarpa seed is destroyed, seeds treated enters the seedbed and carries out seedling culture, every liter of soapberry fruit shell leaching liquid restrains with the soapberry fruit shell of smashing to pieces 5～50 in butt weight, leaching temperature is 25～100 ℃, leaching time is 1～24 hour, replenish the water yield of evaporation loss in the leaching process in good time, or leaching the water yield that finishes the additional evaporation loss in back, leaching finishes the back filters and removes leach residue, the temperature of leaching liquid is dropped to soak the immersion that the Idesia polycarpa seed is used for the Idesia polycarpa seed after temperature required.