CN104255233A - Method for increasing survival rate of sweet osmanthus seedlings - Google Patents

Abstract

The invention discloses a method for increasing the survival rate of sweet osmanthus seedlings. The method includes the steps that harvesting is conducted at proper time; stratification treatment is conducted on sweet osmanthus seeds at low temperature and the sweet osmanthus seeds are placed under the condition that the field intensity of the magnetic field ranges from 0.05 Tesla to 0.24 Tesla and treated for 2 min to 30 min; a shading net is erected for shading treatment; proper seedling culture matrix selection is conducted. By the treatment of the method, the survival rate of the sweet osmanthus seedlings is greatly increased.

Description

A kind of method improving sweet osmanthus shoot survival percent

Technical field

The present invention relates to a kind of seedling-cultivating method, be specifically related to a kind of method improving sweet osmanthus shoot survival percent.

Background technology

Sweet osmanthus belongs to Oleaceae osmanthus, it is green for a long time with the four seasons, the fragrance of flowers is strong and famous, long cultivation history is had in China, also have rich culture intension, associated poetry is too numerous to enumerate especially, along with the raising of people's living standard, people are increasing to ornamental seeds demand, and the increasing market of osmanthus fragrans prevails.Sweet osmanthus fruit is drupe, is dark green during non-full maturity, and mid or late April is ripe, is atropurpureus time ripe.From outside to inside, be respectively exocarp, pulp (mesocarp), cornified duricrust (endocarp), duricrust endoperidium fragrans seed.The endocarp of seed has very strong protective effect, but endocarp is extremely hard thick, containing cuticula, not easily make moisture through, also more weak to the osmosis of oxygen, have impact to the sprouting of seed.Owing to there being the existence of some inhibiting substances, also counteracts that the sprouting of fragrans seed, cause fragrans seed emergence rate under field conditions (factors) very low, less than 10%.Current sweet osmanthus breeding mainly adopts cuttage, grafting, high-pressure process, the planting of layer.Improve fragrans seed germination rate and nursery success rate, make sweet osmanthus more easily direct seminal propagation, to reduce sweet osmanthus reproductive-cost and expanding propagation quantity significant.

Summary of the invention

The present invention is directed to the present situation that fragrans seed emergence rate is very low under field conditions (factors), provide a kind of method improving sweet osmanthus shoot survival percent, for solving the problems of the technologies described above, the technical scheme that the present invention adopts is:

Improve a method for sweet osmanthus shoot survival percent, it is characterized in that, comprise following measures:

(1) when fragrans seed ninety percent is ripe, its seed is gathered, after gathering, carry out exocarp and pulp process;

(2) by fragrans seed, amass with the husky buried regions of one deck husky one deck kind subcovering, be placed in low temperature treatment 60 ~ 120d in 4 DEG C of refrigerator-freezers, under then fragrans seed being placed in field strength 0.05 ~ 0.24 tesla condition, process 2 ~ 30 minutes;

(3) set up shade net, seed sprouting to 7 ~ 14 days afterwards, the light transmittance of shade net is 45%, and every day carries out sprinkling irrigation 1 ~ 2 time to it, sprays 20 ~ 30 minutes at every turn, keeps soil moisture 70 ~ 75%; When height of seedling reaches more than 20cm, the light transmittance increasing shade net is 55%, when height of seedling reaches more than 40cm, removes shade net, hardening 2 ~ 3 days;

(4) select suitable seedling medium, described matrix comprises the composition of following weight portion: chicken manure 50 ~ 80 parts, humus soil 40 ~ 60 parts, straw 30 ~ 40 parts, fulvic acid 30 ~ 40 parts, garden mould 20 ~ 30 parts, ash 10 ~ 15 parts, soya-bean cake 5 ~ 10 parts; The water content of described matrix is 60 ~ 70%, pH value is 6.5 ~ 7.5.

The invention has the beneficial effects as follows:

Do not relate to poisonous and harmful and radioactive substance, improved variety is entail dangers to food security not, and operating process is simple, to operating personnel's fanout free region.

Gather when seed ninety percent is ripe, seed germination rate is best.

Through magnetic field process, the activity of seed enzyme can be activated, impel seed sprouting.

Breeding matrix of the present invention, have passed through screening adjustment, is applicable to the growth of sweet osmanthus seedling.

Embodiment

Below preferred embodiment of the present invention is described in detail, can be easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.

Embodiment 1

When fragrans seed ninety percent is ripe, its seed is gathered, after gathering, carry out exocarp and pulp process;

The fragrans seed dried gathering, amasss with the husky buried regions of one deck husky one deck kind subcovering, is placed in low temperature treatment 60d in 4 DEG C of refrigerator-freezers, under then fragrans seed being placed in field strength 0.24 tesla condition, processes 2 minutes;

In order to improve the sprouting of seed, reducing sunlight and directly shining the damage that it is caused, setting up shade net, seed sprouting to 7 days afterwards, make the light transmittance of its shade net be 45%, every day carries out sprinkling irrigation 1 time to it, each sprinkling irrigation 230 minutes, keeps soil moisture 70 ~ 75%; When height of seedling reaches more than 20cm, the light transmittance increasing shade net is 55%, when height of seedling reaches more than 40cm, removes shade net, hardening 2 days;

Before nursery, first arrange seedbed, select suitable seedling medium, described matrix comprises the composition of following weight portion: chicken manure 50 parts, humus soil 40 parts, straw 30 parts, fulvic acid 30 parts, garden mould 20 parts, ash 10 parts, soya-bean cake 5 parts; The water content of described matrix is 60%, pH value is 6.5.

Embodiment 2

When fragrans seed ninety percent is ripe, its seed is gathered, after gathering, carry out exocarp and pulp process;

The fragrans seed dried gathering, amasss with the husky buried regions of one deck husky one deck kind subcovering, is placed in low temperature treatment 120d in 4 DEG C of refrigerator-freezers, under then fragrans seed being placed in field strength 0.05 tesla condition, processes 30 minutes;

In order to improve the sprouting of seed, reducing sunlight and directly shining the damage that it is caused, setting up shade net, seed sprouting to 14 days afterwards, make the light transmittance of its shade net be 45%, every day carries out sprinkling irrigation 2 times to it, each sprinkling irrigation 20 minutes, keeps soil moisture 70 ~ 75%; When height of seedling reaches more than 20cm, the light transmittance increasing shade net is 55%, when height of seedling reaches more than 40cm, removes shade net, hardening 3 days;

Before nursery, first arrange seedbed, select suitable seedling medium, described matrix comprises the composition of following weight portion: chicken manure 80 parts, humus soil 60 parts, straw 40 parts, fulvic acid 40 parts, garden mould 30 parts, ash 15 parts, soya-bean cake 10 parts; The water content of described matrix is 70%, pH value is 7.5.

Embodiment 3

When fragrans seed ninety percent is ripe, its seed is gathered, after gathering, carry out exocarp and pulp process;

By fragrans seed, amass with the husky buried regions of one deck husky one deck kind subcovering, be placed in low temperature treatment 60 ~ 120d in 4 DEG C of refrigerator-freezers, under then fragrans seed being placed in field strength 0.05 ~ 0.24 tesla condition, process 2 ~ 30 minutes;

Set up shade net, seed sprouting to 7 ~ 14 days afterwards, the light transmittance of shade net is 45%, and every day carries out sprinkling irrigation 1 ~ 2 time to it, sprays 20 ~ 30 minutes at every turn, keeps soil moisture 70 ~ 75%; When height of seedling reaches more than 20cm, the light transmittance increasing shade net is 55%, when height of seedling reaches more than 40cm, removes shade net, hardening 2 ~ 3 days;

Select suitable seedling medium, described matrix comprises the composition of following weight portion: chicken manure 65 parts, humus soil 50 parts, straw 35 parts, fulvic acid 35 parts, garden mould 25 parts, ash 12 parts, soya-bean cake 8 parts; The water content of described matrix is 65%, pH value is 7.

Under field conditions (factors), the germination rate of fragrans seed is lower than 10%, experiment is had to process it, seed germination rate is about 40%, through statistics, the sweet osmanthus survival rate of seedling of embodiment 1, embodiment 2, embodiment 3 is respectively 51%, 46%, 48%, therefore can draw, sweet osmanthus survival rate of seedling of the present invention increases greatly.

The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.

Claims (1)

1. improve a method for sweet osmanthus shoot survival percent, it is characterized in that, comprise following measures:

(1) when fragrans seed ninety percent is ripe, its seed is gathered, after gathering, carry out exocarp and pulp process;

(2) by fragrans seed, amass with the husky buried regions of one deck husky one deck kind subcovering, be placed in low temperature treatment 60 ~ 120d in 4 DEG C of refrigerator-freezers, under then fragrans seed being placed in field strength 0.05 ~ 0.24 tesla condition, process 2 ~ 30 minutes;

(3) set up shade net, seed sprouting to 7 ~ 14 days afterwards, the light transmittance of shade net is 45%, and every day carries out sprinkling irrigation 1 ~ 2 time to it, sprays 20 ~ 30 minutes at every turn, keeps soil moisture 70 ~ 75%; When height of seedling reaches more than 20cm, the light transmittance increasing shade net is 55%, when height of seedling reaches more than 40cm, removes shade net, hardening 2 ~ 3 days;

(4) select suitable seedling medium, described matrix comprises the composition of following weight portion: chicken manure 50 ~ 80 parts, humus soil 40 ~ 60 parts, straw 30 ~ 40 parts, fulvic acid 30 ~ 40 parts, garden mould 20 ~ 30 parts, ash 10 ~ 15 parts, soya-bean cake 5 ~ 10 parts; The water content of described matrix is 60 ~ 70%, pH value is 6.5 ~ 7.5.