CN102422814A

CN102422814A - Transplanting method for photinia serrulata breeding

Info

Publication number: CN102422814A
Application number: CN2011103064552A
Authority: CN
Inventors: 王美霞; 王陆军; 侯雅静; 张丽娜; 李海燕; 赵丽; 王创云
Original assignee: SHANXI TENGDA SEED CO Ltd
Current assignee: SHANXI TENGDA SEED CO Ltd
Priority date: 2011-10-11
Filing date: 2011-10-11
Publication date: 2012-04-25

Abstract

A transplanting method for photinia serrulata breeding belongs to the technical field of plant cultivation. The method comprises steps of: well mixing market sale peat, perlite and vermiculite in a volume ratio of 5:3:1, disinfecting by autoclaving and placing in a flowerpot; pulling out seedlings with root growing to 3-5cm on a medium, flushing medium on the root and carrying out deep liquid root-irrigation with 20% Miejunling; transplanting to a matrix in the flowerpot, spraying water at each morning and evening, maintaining a humidity at higher than 70% and transferring to outdoor after one month hardening seedling. A transplanting survival rate reaches higher than 90%.

Description

The transplanting method that a kind of photinia glabra is bred

Technical field

The invention belongs to trees vegetative propagation field, be specifically related to the transplanting method that a kind of photinia glabra is bred.

Background technology

Photinia glabra is the cottage propagations that adopt on producing more, and cuttage generally adopts branch to make propagating materials, and conventional method is to select sturdy then lignification or semi-lignified branch; Clip is about the slotting fringe of 8-15cm; Otch is smooth smooth, and upper cut is apart from about the terminal bud 1cm, and the blade clip at skill bar top is half the; Rest blade is wiped out, and the slotting fringe base portion that shears is handled back medium the waiting of insertion matrix with root-growing agent and taken root.

The method one is to need a large amount of propagating materialss, the 2nd, and big to the elite stand growth effect of being drawn materials, unfavorable tree-like cultivation; The 3rd, insert fringe at clip and will note keeping the distance of upper cut apart from terminal bud 1cm, time-consuming taking a lot of work, the 4th, reproduction coefficient is lower; General external is 30%, and domesticly have only 20%.

Summary of the invention:

The present invention provides the fast breeding method of a kind of photinia glabra that breeding is few with material, speed is fast, quantity is big.

Technical scheme of the present invention is following:

Step 1: medium preparation: comprise starting medium preparation, proliferated culture medium preparation, culture of rootage preparation; Wherein starting medium is minimal medium with MS; Add 2.0 mg/L 6-BA, 0.15 mg/L NAA, 0.1% active carbon, 3% sucrose and 0.65% agar powder, pH5.8; Proliferated culture medium is a minimal medium with 1/2MS, adds 2.5 mg/L 6-BA, 0.5 mg/L NAA, 3% sucrose and 0.65% agar powder, pH5.8; Root media is a minimal medium with 1/2MS, adds 1.5 mg/L IBA, NAA 0.2 mg/L, 1.5% sucrose and 0.65% agar powder, pH5.8.

Step 2: explant collection and preliminary treatment.In the fine morning in summer, gather the semi-lignified shoot as explant, remove unnecessary cauline leaf; Place beaker with 0.1% liquid detergent solution, soak 15 min, during constantly stir; The beaker mouth is tightened with the gauze covering; Wash 30 min with running water, use distilled water flushing again 3～4 times, flush away surface dirt.Place superclean bench then, with changing 0.1% HgCl over to behind 75% alcohol surface sterilization, 30 s ₂Soak 5～7 min in the solution; Constantly shake during this time; After sterile water (distilled water of high pressure steam sterilization) flushing 5～6 times, aseptic filter paper (through the filter paper of high pressure steam sterilization) suck dry moisture cuts terminal bud or with the stem section of 1 axillalry bud with aseptic scalpel (through the scalpel of high steam).

Said superclean bench is after start, after 15 minutes, sprays table top with alcohol with ultra violet lamp again, has wind to go out after the start always, and bacterium can not get in the platform again, belongs to the sterile working process.

Step 3: cultured in vitro: comprise starting cultivation, enrichment culture, culture of rootage, wherein, start and cultivate; With terminal bud or with the stem section of 1 axillalry bud be inoculated into start medium after, place in 23～27 ℃ the culturing room, be light source with the fluorescent lamp; Intensity of illumination is 1500Lx～2 000 Lx; Light application time 10h/d, culturing room's relative moisture 70%～80% is cultivated 20-30 d; Change the indefinite bud that generates over to proliferated culture medium, cultivate 20-25 d, produce more indefinite bud, change the seedling of robust growth over to culture of rootage; The culture of rootage condition is that indoor temperature is 20 ℃, is light source with the fluorescent lamp, and intensity of illumination is 1500 Lx, light application time 12h/d, and culturing room's relative moisture 70%～80%, after culture of rootage 20-25 days, root system grows to 3-5cm, carries out acclimatization and transplants.Said enrichment culture condition is identical with the startup condition of culture.

Step 4: the seedling of taking root domestication: when root system grows to 3-5cm, open cultivation bottle cap injection 5-10ml distilled water and make medium be immersed in distilled water, refining seedling 3-5 d.

Step 5: transplant: with commercially available peat, perlite, vermiculite, by volume, peat: perlite: vermiculite=5:3:1 through autoclaving sterilization, places in the flowerpot after mixing; The seedling that root system is grown on the medium of 3-5cm pulls up, rinse out on the root system with medium, with the dark liquid irrigating root of 20% sterilization ling; Be transplanted on the matrix in the flowerpot, every day, each water spray once kept the humidity more than 70% sooner or later, and the refining seedling can move on to outdoor after 1 month, and transplanting survival rate reaches more than 90%.

Compare with conventional method, the present invention takes explant quantity few, does not influence elite stand and grows and tree-like cultivation; Take a terminal bud or stem section, just can breed hundreds of strain Cheng Miao, and slotting fringe of tradition breeding can only be bred a plant.

Therefore, use the present invention to carry out the photinia glabra plant breeding, can improve breeding quantity greatly, help to carry out scale, factorial seedling growth, accelerate reproduction speed, reduce cost.In the production of photinia glabra nursery stock, have important practice and dissemination.

Embodiment:

According to following embodiment, can understand the present invention better.Yet, those skilled in the art will readily understand that embodiment only is used to explain the present invention, and the present invention that should also can not limit in claims to be described in detail.

Year December in April, 2009 to 2010, Academy of Agricultural Sciences's crop science research institute group training research department in the Shanxi Province, the researcher has obtained the group culturation rapid propagating technology of photinia glabra, and has successfully cultivated into tissue cultivating seedling through repetition test.Main through being: as in summer in 2009 in the fine morning, to gather the semi-lignified shoot, remove unnecessary cauline leaf as explant; Place beaker with 0.1% liquid detergent solution, soak 15 min, during constantly stir; The beaker mouth is tightened with the gauze covering; Wash 30 min with running water, use distilled water flushing again 3～4 times, flush away surface dirt.Place superclean bench then, with changing 0.1% HgCl over to behind 75% alcohol surface sterilization, 30 s ₂Soak 5～7 min in the solution, during constantly shake, after sterile water (distilled water of high pressure steam sterilization) flushing 5～6 times; Aseptic filter paper (through the filter paper of high steam) suck dry moisture cuts terminal bud or with the stem section of 1 axillalry bud with aseptic scalpel (through the scalpel of high steam), is inoculated into that to start medium (be that minimal medium adds 2.0 mg/L 6-BA, 0.15 mg/L NAA, 0.1% active carbon, 3% sucrose and 0.65% agar powder with MS; PH5.8), placing in 23～27 ℃ the culturing room, is light source with the fluorescent lamp; Intensity of illumination is 1500Lx～2 000 Lx; Light application time 10h/d, culturing room's relative moisture 70%～80% was cultivated 20-30 days; (with 1/2MS is that minimal medium adds 2.5 mg/L 6-BA, 0.5 mg/L NAA to change proliferated culture medium over to; 3% sucrose and 0.65% agar powder, pH5.8) after, condition of culture is with start cultivating.Cultivated 20-25 days, and produced indefinite bud, change over to root media (with 1/2MS is that minimal medium adds 1.5 mg/L IBA, NAA 0.2 mg/L, 1.5% sucrose and 0.65% agar powder, pH5.8).The culture of rootage indoor temperature is 20 ℃, is light source with the fluorescent lamp, and intensity of illumination is 1500Lx; Light application time 12h/d, culturing room's relative moisture 70%～80% is cultivated after 20-25 days; When root system grows to the 3-5cm left and right sides, open and cultivate bottle cap injection 5-10ml distilled water, refining seedling 3-5 days.Transplant again to transplanting medium (peat: perlite: in the flowerpot of vermiculite=5:3:1) is housed.Before transplanting transplanting medium is sterilized through high-pressure sterilizing pot; With the dark liquid irrigating root of 20% sterilization ling, to note during transplanting with on the root system with medium rinse out, in case mould contamination influences root growth, simultaneously every day sooner or later each water spray once keep the humidity more than 70%.The refining seedling can move into the land for growing field crops after 1 month, and transplanting survival rate reaches more than 90%.

Remarks:

The hormone composition:

6-BA chinesization formal name used at school: 6-benzyl aminopurine

IBA chinesization formal name used at school: indolebutyric acid

NAA chinesization formal name used at school: methyl

MS minimal medium (Murashige & Skoog 1962):

。

Claims

1. the transplanting method that photinia glabra is bred is characterized in that commercially available peat, perlite, vermiculite, and by volume, peat: perlite: vermiculite=5:3:1 through autoclaving sterilization, places in the flowerpot after mixing; The seedling that root system is grown on the medium of 3-5cm pulls up, rinse out on the root system with medium, with the dark liquid irrigating root of 20% sterilization ling; Be transplanted on the matrix in the flowerpot, every day, each water spray once kept the humidity more than 70% sooner or later, and the refining seedling can move on to outdoor after 1 month, and transplanting survival rate reaches more than 90%.