CN109349082A - A kind of tobacco seedlings breeding method - Google Patents

A kind of tobacco seedlings breeding method Download PDF

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Publication number
CN109349082A
CN109349082A CN201811504240.XA CN201811504240A CN109349082A CN 109349082 A CN109349082 A CN 109349082A CN 201811504240 A CN201811504240 A CN 201811504240A CN 109349082 A CN109349082 A CN 109349082A
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China
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tobacco
tobacco seedlings
light source
artificial lighting
feux rouges
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Chinese (zh)
Inventor
张立新
徐雪东
李司童
韦成才
袁帅
穆耀辉
王平平
彭智良
张永峰
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Northwest A&F University
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Northwest A&F University
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Priority to CN201811504240.XA priority Critical patent/CN109349082A/en
Publication of CN109349082A publication Critical patent/CN109349082A/en
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G31/00—Soilless cultivation, e.g. hydroponics
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G31/00—Soilless cultivation, e.g. hydroponics
    • A01G31/02—Special apparatus therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
    • Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Cultivation Of Plants (AREA)

Abstract

The invention discloses a kind of tobacco seedlings breeding methods, impose artificial lighting in tobacco seedlings cultivation and spray GA3Combined treatment, the light source that wherein lighting process uses is feux rouges or blue light LED light source, GA3Spraying concentration is 50mgL‑1.The present invention promotes tobacco root system growth using combined treatment, improves C N metabolism key enzyme activity, to improve seedling quality, tobacco leaf economic benefit after transplanting is improved simultaneously, cured tobacco leaf total nitrogen and potassium content increase, starch, reduced sugar, total reducing sugar and nicotine content reduce, nitrogen base ratio improves, and cured tobacco leaf chemical component tends to coordinate, and interior quality improves.

Description

A kind of tobacco seedlings breeding method
Technical field
The invention belongs to tobacco planting fields, are related to a kind of raising seedling quality, and promote the growth hair of tobacco leaf after transplanting It educates, the method that yield and quality is promoted.
Background technique
Flue-cured tobacco (Nicotiana tabacum L.) is the industrial crops for the purpose of harvesting tobacco leaf, and nursery is that tobacco leaf is raw The primary link of production cultivates in due course, sufficient, the neat stalwartness of quantity tobacco seedlings, is to obtain high-quality, the suitable basis for producing tobacco leaf.Cause Floating seedlings can promote the sprouting of cigarette kind and seedling growth and development, and intensive degree is high, be managed collectively convenient for seedbed, germ is avoided to pass Many advantages, such as broadcasting and mitigating tobacco grower's labor intensity, is used widely in flue-cured tobacco seedling-cultivating.But in actually promoting, discovery There are still following problems: for tobacco seedlings long term growth in high humidity environment, root system is undeveloped, and root activity is low, absorption function reduction, Seedbed early growth is slow, and also seedling stage is long after transplanting, and resistance is poor, constrains further mentioning for crop field yield of tobacco and quality It rises.
Important bridge of the root system as Exchange of material and energy between connection soil and plant shoot, in addition to can be from soil Middle absorption moisture and inorganic nutrients, and by the transport of the micro-pipe tissue of root and be transported to except overground part, it can also be by overground part The organic matters such as the photosynthate of synthesis are transported to each position of root, and the liquid manure of plant absorbs and utilizes too busy to get away root system, while root System is also many physiological activators of plant, the life such as the vitals of hormone and Amino acid synthesis and conversion, to aerial part Long and physiology has important influence.Flue-cured tobacco root system development and root activity and tobacco leaf growth, disease resistance, Major Economic, Tobacco leaf chemical composition and sucking quality have close relationship.Root system development is bad, causes cigarette strain growth there are nutritional imbalance, no Coordinate and depauperation, yield of tobacco produced is lower, and the appearance of tobacco leaf goes out that oil is insufficient, elasticity is poor, gloss is inclined Secretly, intrinsic chemical ingredient is uncoordinated and flavor and taste is poor, while resistance against disadvantage is low during the growth process, disease weight (is not known towering etc. 2012；Xiang little Liang etc. is 2009).
C N metabolism is the most basic physiological metabolism process of plant, each growth period C N metabolism power direct relation of plant The absorption and assimilation of minerals, the synthesis of nutriment and the formation of photosynthate, conversion etc. (Tang Xiumei etc. 2011).Starch Enzyme and nitrate reductase (NR) are the induced enzyme and rate-limiting enzyme of plant C N metabolism, the two activity size to starch in tobacco leaf body, The formation of the nitrogenous compounds such as the carbon metablisms such as reduced sugar, soluble sugar compound and protein, amino acid, nicotine has important Effect (Huang tree waits 2005 forever), and then influence the harmony and cured tobacco leaf quality of tobacco leaf intrinsic chemical ingredient.
Tobacco leaf is light crop, as other plants, the ability vigorous growth under stronger illumination condition, but only exist More good tobacco leaf can be just produced under suitable illumination condition.By augmenting different light medium, promote plant growth and development and control It is one important in modern agriculture cultivation field technology (Cui Jin etc. 2008) that plant forms processed, which are built up,.Illumination condition is also to influence One of tabacco fragrance style, principal element of yield and quality.The tobacco seedlings cultivated under different illumination conditions, after being transplanted to crop field Cigarette strain growthdevelopmental stage affects the economical character and physical signs of cigarette strain without significant changes to a certain extent, is with feux rouges The tobacco seedlings that main complex light is cultivated, cigarette strain field growing speed are accelerated, and plamochromic pigment and content of reducing sugar improve；With blue light Based on the tobacco seedlings cultivated of complex light, after being transplanted to field, cigarette strain root activity, NR activity and protein content significantly increase Add, cigarette strain blade carries out photosynthesis after seedling stage, supplement illumination was conducive to transplanting, increases tobacco leaf length, hacking degree, rate containing stalk And weight per leaf, while accelerating root growth and development.In addition, the tobacco seedlings cultivated under this condition, crop field upper, middle and lower after transplanting The chemical index of portion's cured tobacco leaf differs greatly, especially (carotenoid, green to carbon metablism associated products, secondary metabolite The content of ortho acid) and sugared alkali than, potassium chlorine being affected than, two sugar differences.
LED is as novel lighting source, and energy conservation and environmental protection, response time be short, long service life, safe and reliable, calorific value Less, spectrum property is good (Bergstrand et al.2013), and many scholars are using LED as light source both at home and abroad, research shows that red indigo plant Light combination is conducive to seedling and robust plant growth, dry-matter accumulation increase, and seedling vigorous index increases (Guo Yinsheng etc. 2011).
Numerous studies think GA3Initiation can improve cigarette kind vigor, germination percentage and seedling quality (Afzal et Al.2002), and the tolerance (Marvin's extensively etc. 2009) of Pelleting cigarette kind under low temperature can be improved.In arid, low temperature or arid-low temperature Intersect under stress, GA3The germinating energy, germination percentage, germination index of cigarette kind and seedling root long, height and fresh dry weight are significant after initiation It improves, cigarette kind germinating time shortens, and improves the anti-adversity ability (bank equality 2014) of cigarette kind and seedling.
Currently, after generally in tobacco leaf breeding time the period using gibberellin spray processing, it is independent or with potash fertilizer interaction, from And improving quality of tobacco to a certain extent in short term, but crop field sprays and is influenced by weather, spraying effect is restricted.Meanwhile Nursery stage often carries out light filling processing using feature the effect of different light medium according to the defect of tobacco seedlings, deposits to the improvement of seedling quality In hysteresis quality, act on to be improved.
Summary of the invention
The purpose of the present invention is to provide a kind of growth and development, productions that seedling quality can be improved and promote tobacco leaf after transplanting The tobacco seedlings breeding method of amount and quality-improving.
In order to achieve the above objectives, the invention adopts the following technical scheme:
A kind of tobacco seedlings breeding method, comprising the following steps:
After flue-cured tobacco is seeded in seedbed, seedbed is placed in and is protected from light in culture environment and starts artificial lighting processing；After emergence, Increase gibberellin simultaneously continuing artificial lighting processing and spray processing, stops artificial lighting before tobacco seedlings are transplanted into crop field Processing；The artificial lighting processing uses feux rouges or blue light.
Preferably, artificial lighting processing uses LED light source, and the power of LED light source is 15~40W, and wavelength is 610~ Intensity of illumination at 720nm or 400~520nm, 0.3~0.5m of light source lower section is 160~200 μm of olm-2·s-1。
Preferably, the period of the artificial lighting processing is 10~12hd-1, the daily artificial lighting time is morning 8: 00 to night 20:00.
Preferably, as tobacco seedlings are gradually grown tall, the position of LED light source is adjusted, makes to keep certain between tobacco seedlings and LED light source Distance (for example, 28cm~30cm).
Preferably, after emergence, a gibberellin was sprayed every 7~10 days (for example, GA3), >=1 time is sprayed altogether, gibberellin Spraying concentration is 30~120mgL-1, sprayed dose be subject to tobacco seedlings blade infiltration.
A kind of tobacco seedlings cultivation facility, including for providing artificial lighting in above-mentioned be protected from light in culture environment to nursery stage flue-cured tobacco Feux rouges or blue light source and the device for carrying out tobacco seedlings foliage-spray.
Preferably, for being handled during floating seedling cultivation of fire-cured tobacco, the culture environment that is protected from light is surrounding setting There is the seedling pond (can specifically realize and light screening material is layered in seedling shed) of light screening material, feux rouges or blue light source are located at seedling Above pond, and it is adjustable at a distance from seedling pond.
Preferably, the feux rouges or blue light source are selected from above-mentioned LED light source.
The beneficial effects of the present invention are embodied in:
The present invention is in pre- seedling stage by carrying out different light medium (replacing natural lighting using feux rouges or blue light) and spraying red mould Element processing can effectively facilitate tobacco root system growth, improve C N metabolism key enzyme activity and improve economical character, to improve cigarette Seedling quality, by artificial lighting and spray gibberellin processing tobacco seedlings be transplanted to crop field after, gained tobacco leaf economic benefit promoted it is significant, Yield, the output value, first-class cigarette ratio dramatically increase.Cured tobacco leaf total nitrogen and potassium content increase, starch, reduced sugar, total reducing sugar and nicotine Content reduces, and nitrogen base ratio improves, and intrinsic chemical ingredient is more coordinated.Meanwhile the method that the present invention uses is easy to operate, not by Natural environmental condition limitation, it is at low cost, be conducive to promote the use of.
Further, the present invention is not necessarily to after emergence by the determining illumination of many experiments and Study On Spraying Condition according to tobacco seedlings Quality adjusts treatment conditions, and only uses certain treatment conditions only to need conventional tube after normal transplanting to crop field in nursery early stage Reason can obtain preferable yield of tobacco and quality after flue-cured tobacco is mature.
Detailed description of the invention
Fig. 1 is culture facility schematic diagram in the present invention；
In figure: 1 is shading seedling shed, and 2 be LED light source, and 3 be lifting device, and 4 be sprayer apparatus, and 5 be seedling pond.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.The embodiment is only used for explaining this Invention, rather than limiting the scope of the invention.
Light quality or hormone have tobacco seedling growth C N metabolism pathway key enzymatic activity and its metabolite synthesis, conversion significant It influences.Suitable illumination or HORMONE TREATMENT can effectively facilitate tobacco seedlings early growth and quick tiller, accelerate root growth and development, and it is living to improve root system Power improves economical character, cultivates strong sprout, has important influence to the promotion of flue-cured tobacco grown in field and yield and quality.Needle To the problems in Shan south flue-cured tobacco actual production, according to producing region concrete condition it is quasi- with different light medium irradiation and plant growth regulator come Seedling quality is improved, undeveloped to solve root system, root activity is low, and absorption function reduction, seedbed early growth is slow, transplanting The problems such as also seedling stage is long afterwards, and resistance is poor, and quality of tobacco is bad.
Example 1
1, test material
It is cloud and mist 99 for examination flue-cured tobacco cultivars.Light source used in experimental group is 6 (area coverages are as follows: 2.7744m2) blue led (36W, 450nm, the intensity of illumination under lamp at 0.3m are 180 μm of olm to fluorescent tube-2·s-1), gibberellin (uses GA3) concentration 0mg·L-1、50mg·L-1、100mg·L-1(solvent is water).Light source used in control group is white light.Experiment is arranged in northwest agricultural It is carried out in University of Science and Technology's seedling growth greenhouse.
2, experimental design
Test sequentially includes the following steps:
1) 5 surrounding of Miao Chi is blocked with black light-blocking film material (forms a lighttight space, i.e. shading seedling shed 1), built-in 6 blue led fluorescent tubes constitute LED light source 2, are suspended from 5 top (Fig. 1) Miao Chi using lifting device 3；
2) in after planting, seed plate is put into seedling pond to and is started light filling processing, the light filling period is 12hd-1, lighting time For 8:00 to night 20:00 every morning (being not necessarily to natural lighting)；As tobacco seedlings are gradually grown tall, lamp strip position is adjusted, tobacco seedlings are made The distance between fluorescent tube is maintained between 28cm~30cm；
3) continue the light filling processing after emerging, and spray a GA every 10d using the sprayer apparatus of seedling Chi5Chu 43, It sprays altogether 3 times (after emergence 10 days, 20 days, 30 days), spraying time is before morning 9:00 point, with seedling blade back and leaf when spraying Subject to the infiltration of face.The light filling processing is continued until the end of nursery.
Seedling raising process is in addition to without leaf-cutting, hardening, other administrative skill measures are according to local floating seedlings management regulation Implement, test matrix is commodity matrix, and by volume by turf: fine perlite: vermiculite=70:20:10 is mixed, by lake Nan Xianghui agricultural technology development corporation, Ltd. provides.Floating seedlings special fertilizer is provided by Henan Ai Nong Biotechnology Co., Ltd, N:P2O5:K2O ratio is 20:15:15, includes various trace elements.Water for larval nursing is from local cleaning water source, pollution-free, nursery Nutrient solution depth 8cm~10cm in the process.
3, researching determining
Tobacco root system vigor, flue-cured tobacco root activity and C N metabolism key enzyme activity；Flue-cured tobacco economic characters；In the middle part of flue-cured tobacco Tobacco leaf chemical composition (important symbol that middle part tobacco leaf chemical composition is seedling quality and quality of tobacco and yield).
4, result and analysis
Influence of 1. different disposal of table to tobacco root system vigor
Note: different letters indicate significant difference after number
Referring to table 1, tobacco seedlings are handled by measure of the present invention, 63 days blue lights and various concentration GA after transplanting3With the use of (LG) When, overall effect is better than exclusive use GA3.In blue light and GA3With the use of when, LG50(blue light+spray 50mgL-1GA3) effect Fruit is best.LG50Processing and conventional treatment (BG0: white light+spray 0mgL-1GA3(do not spray GA3)) compare, main root length increases 36.33%, long 42.22%, the lateral root number that increases of lateral root increases by 11.28%, root system volume increase by 179%.
Influence of 2. different disposal of table to flue-cured tobacco root activity and C N metabolism enzyme
Note: different letters indicate significant difference after number
Referring to table 2, tobacco seedlings are handled by measure of the present invention, 63 days blue lights and various concentration GA after transplanting3With the use of when, it is whole Body effect is better than exclusive use GA3.In blue light and GA3With the use of when, LG50(blue light+spray 50mgL-1GA3) effect is most It is good.LG50Processing and conventional treatment (BG0) compare, root activity improves 110.17%, amylase activity and improves 51.08%, nitric acid Reductase activity improves 79.67%.
Influence of 3. different disposal of table to flue-cured tobacco economic characters
Note: different letters indicate significant difference after number
Referring to table 3, tobacco seedlings are handled by measure of the present invention, after transplanting crop field, blue light and various concentration GA3With the use of when, Overall effect is better than exclusive use GA3.In blue light and GA3With the use of when, LG50(blue light+spray 50mgL-1GA3) effect is most It is good.LG50Processing and conventional treatment (BG0) compare, yield increase by 18.93%, average price increase by 8.90%, the output value increase by 29.56%, First-class cigarette ratio increases by 47.94%, better-than-average cigarette ratio and increases by 18.10%, weight per leaf increase by 12.86%.
Influence of 4. different disposal of table to study on chemical compositions of leaves in the middle part of flue-cured tobacco
Note: different letters indicate significant difference after number
Referring to table 4, tobacco seedlings are handled by measure of the present invention, after transplanting crop field, blue light and various concentration GA3With the use of when, Overall effect is better than exclusive use GA3.In blue light and GA3With the use of when, LG50(blue light+spray 50mgL-1GA3) effect is most It is good.LG50Processing and conventional treatment (BG0) compare, content of starch, which reduces by 47.35%, content of reducing sugar, reduces by 12.59%, total reducing sugar Content reduces by 17.00%, total nitrogen content and increases by 44.74%, potassium content increase by 68.60%, nicotine content reduction by 9.25%, sugared alkali Increase by 58.54% than reducing by 3.71%, nitrogen base ratio.
Example 2
1, test material
It is cloud and mist 99 for examination flue-cured tobacco cultivars.Light source used in experimental group is 6 red LED fluorescent tubes (36W, 660nm, under lamp Intensity of illumination at 0.3m is 180 μm of olm-2·s-1), gibberellin (uses GA3) concentration 0mgL-1、50mg·L-1、 100mg·L-1.Light source used in control group is white light.Experiment, which is arranged in Xibei Univ. of Agricultural & Forest Science & Technology's seedling growth greenhouse, to be carried out.
2, experimental design
Test sequentially includes the following steps:
1) 5 surrounding of Miao Chi is blocked with black light-blocking film material, built-in 6 (area coverages are as follows: 2.7744m2) LED light Pipe (is suspended from above seedling pond)；
2) in after planting, seed plate is put into seedling pond to and is started light filling processing, the light filling period is 12hd-1, lighting time 8:00 to night 20:00 every morning (being not necessarily to natural lighting)；As tobacco seedlings are gradually grown tall, adjust lamp strip position, make tobacco seedlings with The distance between fluorescent tube is maintained between 28cm~30cm；
3) continue the light filling processing after emerging, and spray a GA every 10d using the sprayer apparatus of seedling Chi5Chu 43, It sprays altogether 3 times (after emergence 10 days, 20 days, 30 days), spraying time is before morning 9:00 point, with seedling blade back and leaf when spraying Subject to the infiltration of face.The light filling processing is continued until the end of nursery.
Seedling raising process is in addition to without leaf-cutting, hardening, other administrative skill measures are according to local floating seedlings management regulation Implement, test matrix is commodity matrix, and by volume by turf: fine perlite: vermiculite=70:20:10 is mixed, by lake Nan Xianghui agricultural technology development corporation, Ltd. provides.Floating seedlings special fertilizer is provided by Henan Ai Nong Biotechnology Co., Ltd, N:P2O5:K2O ratio is 20:15:15, includes various trace elements.Water for larval nursing is from local cleaning water source, pollution-free, nursery Nutrient solution depth 8cm~10cm in the process.
3, researching determining
Tobacco root system vigor, flue-cured tobacco root activity and C N metabolism key enzyme activity；Flue-cured tobacco economic characters；Cigarette in the middle part of flue-cured tobacco Study on chemical compositions of leaves (important symbol that middle part tobacco leaf chemical composition is seedling quality and quality of tobacco and yield).
4, result and analysis
Influence under 5. different disposal of table to tobacco root system vigor
Note: different letters indicate significant difference after number
Referring to table 5, tobacco seedlings are handled by measure of the present invention, 63 days feux rouges and various concentration GA after transplanting3With the use of (HG) When, overall effect is better than exclusive use GA3.In feux rouges and GA3With the use of when, HG50(feux rouges+spray 50mgL-1GA3) effect Fruit is best.HG50Processing and conventional treatment (BG0) compare, main root length increases by 21.44%, lateral root long increase by 25.66%, lateral root Number increases by 1.51%, root system volume and increases by 117%.
Influence of 6. different disposal of table to flue-cured tobacco root activity and C N metabolism enzyme
Note: different letters indicate significant difference after number
Referring to table 6, tobacco seedlings are handled by measure of the present invention, 63 days feux rouges and various concentration GA after transplanting3With the use of when, it is whole Body effect is better than exclusive use GA3.In feux rouges and GA3With the use of when, HG50(feux rouges+spray 50mgL-1GA3) effect is most It is good.HG50Processing and conventional treatment (BG0) compare, root activity improves 77.97%, amylase activity and improves 77.19%, nitric acid Reductase activity improves 58.92%.
Influence of 7. different disposal of table to flue-cured tobacco economic characters
Note: different letters indicate significant difference after number
Referring to table 7, tobacco seedlings are handled by measure of the present invention, 63 days feux rouges and various concentration GA after transplanting3With the use of when, it is whole Body effect is better than exclusive use GA3.In feux rouges and GA3With the use of when, HG50(feux rouges+spray 50mgL-1GA3) effect is most It is good.HG50Processing and conventional treatment (BG0) compare, yield increase by 8.04%, average price increase by 3.48%, the output value increase by 11.78%, First-class cigarette ratio increases by 33.24%, better-than-average cigarette ratio and increases by 14.30%, weight per leaf increase by 6.71%.
Influence of 8. different disposal of table to study on chemical compositions of leaves in the middle part of flue-cured tobacco
Note: different letters indicate significant difference after number
Referring to table 8, handled by measure of the present invention, after tobacco seedlings transplant crop field, feux rouges and various concentration GA3With the use of when, Overall effect is better than exclusive use GA3.In feux rouges and GA3With the use of when, HG50(feux rouges+spray 50mgL-1GA3) effect is most It is good.HG50Processing and conventional treatment (BG0) compare, content of starch, which reduces by 33.38%, content of reducing sugar, reduces by 17.46%, total reducing sugar Content reduces by 18.12%, total nitrogen content and increases by 38.60%, potassium content increase by 46.51%, nicotine content reduction by 13.88%, sugar Alkali increases by 58.54% than reducing by 4.24%, nitrogen base ratio.

Claims (9)

1. a kind of tobacco seedlings breeding method, it is characterised in that: the following steps are included:
After flue-cured tobacco is seeded in seedbed, seedbed is placed in and is protected from light in culture environment and starts artificial lighting processing；After emergence, after Continuous progress artificial lighting, which handles while increasing gibberellin, sprays processing, until tobacco seedlings stop at artificial lighting before being transplanted into crop field Reason；The artificial lighting processing uses feux rouges or blue light.
2. a kind of tobacco seedlings breeding method according to claim 1, it is characterised in that: the artificial lighting processing uses LED light Source, the power of LED light source are 15~40W, and wavelength is 610~720nm or 400~520nm, below light source at 0.3~0.5m Intensity of illumination is 160~200 μm of olm-2·s-1。
3. a kind of tobacco seedlings breeding method according to claim 1, it is characterised in that: the period of the artificial lighting processing is 10 ~12hd-1。
4. a kind of tobacco seedlings breeding method according to claim 2, it is characterised in that: as tobacco seedlings are gradually grown tall, adjust LED light The position in source makes to maintain a certain distance between tobacco seedlings and LED light source.
5. a kind of tobacco seedlings breeding method according to claim 1, it is characterised in that: after emergence, sprayed every 7~10 days primary Gibberellin sprays >=1 time altogether, and gibberellin spraying concentration is 30~120mgL-1, sprayed dose be subject to tobacco seedlings blade infiltration.
6. a kind of tobacco seedlings cultivate facility according to claim 1, it is characterised in that: the culture environment that is protected from light is surrounding setting There is the seedling pond of light screening material.
7. a kind of tobacco seedlings cultivate facility, it is characterised in that: including for providing people to nursery stage flue-cured tobacco in being protected from light culture environment The feux rouges or blue light source of work illumination and device for carrying out tobacco seedlings foliage-spray.
8. a kind of tobacco seedlings cultivate facility according to claim 7, it is characterised in that: the culture environment that is protected from light is surrounding setting There are the seedling pond (5) of light screening material, feux rouges or blue light source adjustable at a distance from the seedling pond (5).
9. a kind of tobacco seedlings cultivate facility according to claim 7, it is characterised in that: the feux rouges or blue light source are selected from LED Light source (2), the power of LED light source (2) are 15~40W, and wavelength is 610~720nm or 400~520nm, 0.3 below light source~ Intensity of illumination at 0.5m is 160~200 μm of olm-2·s-1。
CN201811504240.XA 2018-12-10 2018-12-10 A kind of tobacco seedlings breeding method Pending CN109349082A (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106922506A (en) * 2017-03-03 2017-07-07 福建省中科生物股份有限公司 The one artificial light environment cultural method for growing tobacco

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106922506A (en) * 2017-03-03 2017-07-07 福建省中科生物股份有限公司 The one artificial light environment cultural method for growing tobacco

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
崔志燕: "光照与赤霉素对烟苗素质及烟叶生长和产质量的影响", 《中国优秀硕士学位论文全文数据库 农业科技辑》 *

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