CN103823050A - Method for determining maturation of tobacco leaves and method for harvesting tobacco leaves - Google Patents
Method for determining maturation of tobacco leaves and method for harvesting tobacco leaves Download PDFInfo
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- CN103823050A CN103823050A CN201410069866.8A CN201410069866A CN103823050A CN 103823050 A CN103823050 A CN 103823050A CN 201410069866 A CN201410069866 A CN 201410069866A CN 103823050 A CN103823050 A CN 103823050A
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Abstract
The invention belongs to the tobacco field, and relates to a method for determining maturation of tobacco leaves and a method for harvesting tobacco leaves. According to the appearance of different growth characteristics of the tobacco leaves in the filed, the determination can be carried out according to color of each part of the tobacco leaf, the whitening degree of main and branch vein, fuzz shedding condition and size of stem and leaf, so that maturation harvest of the tobacco leaf at each part can be reached. Compared with a traditional method, the method increases operability and accuracy of the tobacco leaves, concrete index and different degrees and levels for determining can be highlighted; so that the method has stronger pertinency, regularity and comprehensiveness, and is easy to be grasped, and is suitable for harvesting the tobacco leaves after optimizing a structure of the current tobacco leaves.
Description
Technical field
The invention belongs to Field of Tobacco, relate to a kind of a kind of determination methods and tobacco leaf picking method of tobacco leaf maturation.
Background technology
Mature degree is seen and is divided into physiological maturity and technical maturity from tobacco physiology and cigarette industry demand.Conventionally the Maturity of Tobacco Leaf of saying refer to that tobacco leaf grows and dry-matter accumulation after, be suitable for the intensity of variation of cigarette industry needed raw material from the conversion of Physiology and biochemistry, comprising the harmony of chemical analysis and the suitability established technology maturation of physical state.
Physiological maturity is the later stage of cigarette strain in growing, and the inner dry-matter accumulation of tobacco leaf reaches peak-peak and starts to occur old and feeble state.Observe from formalness on the one hand, now tobacco leaf cell constantly enriches, and tobacco leaf area and thickness reach maximal value, and in leaf, dry-matter accumulation is maximum; On the other hand, tobacco leaf also peaks as the nutrient fan-out capability of nutrition organs thereupon, the activity of leaf intracellular metabolite reaches photosynthetic assimilability and respiration alienation rate in balance, after this, chlorophyll content starts to decline, and synthesis capability weakens rapidly, and capacity of decomposition relatively progressively improves, tobacco leaf senesces, and output is progressively downtrending.
In the stage of growing from tobacco growing, technical maturity is the variation that continues generation after physiological maturity, is physiological overdone state.Now, chlorophyll content significantly declines, the flavescence of leaf look, and there is certain physiology consumption in the dries such as protein, sugar, starch, also decline thereupon.Along with this appropriateness consumes, free state nitrogen reduces, and Dan Yechong slightly declines, and it is loose that blade construction becomes.Various compositions are tending towards coordinating in leaf, change to being conducive to tabacco fragrance, the jealous and modulating characteristic direction that improves.The most applicable modulation processing of the tobacco leaf of now gathering, and former cigarette after processing meets industrial requirement most.Therefore, just refer in the technical maturity stage so-called ripe picking time gathers as best period, shifts to an earlier date or lag behind to be all unfavorable for modulation.
Maturation further completes physiological and biochemical procedure after referring to that the interior dry of tobacco leaf reaches mxm. (physiological maturity) in field; The leave dual sides color and luster of this type of tobacco leaf is substantially similar, and the back side sees that offshoot is obvious, wrinkles in blade face, and blade is soft and oiliness, tough and not crisp, and color and luster is saturated; After modulation, institutional framework is loose, and color all belongs to Essential colour, and industrial application is worth high, and output is also higher; Mature is gathered and is generally referred to this one-phase, is similar to the technical maturity defining in the world.
It is one of gordian technique of sound tobacco production that maturation is gathered.The degree of ripeness of accurately grasping field fresh tobacco leaf is significant to timely collecting and science modulation.Once carry out systematic research in tobacco leaf maturation abroad aspect gathering, judged whether maturation of tobacco leaf as the U.S. adopts 1 week in advance and pluck tobacco sample to carry out chemical composition analysis; Zimbabwe adopts the quantizating index of the ripe colour picture color of tobacco leaf, barn test and drawer test, and Japan adopts the method for colorimetric card colorimetric to judge etc.Also someone proposes to utilize physiological property to differentiate, as utilizes Flue-cured conductivity, cane sugar content and institutional framework diagnosis to judge Maturity of Tobacco Leaf etc.The domestic research of also carrying out the ripe picking and roasting of tobacco leaf aspect, still bleaches and is judged as master with leaf color and master pulse.
The determination methods of traditional Mature Tobacco Leaves is as follows:
Bottom leaf: blade face yellow green, it is yellow that 6-7 becomes, and master pulse bleaches more than 1/2;
Middle leaf: blade face is light yellow, it is yellow that 7-8 becomes, and master pulse bleaches more than 2/3;
Upper leaf: blade face is light yellow, it is yellow that 8-9 becomes, and master pulse bleaches more than 3/4.
But this determination methods is mainly take tobacco leaf and master pulse change color as main, the maturation of not recognizing tobacco leaf is the result that the Physiology and biochemistry of material in tobacco leaf changes.The present invention not only judges from Ye Se and vein situation of change, and come off from blade fine hair, the generation of tobacco tar, the increase of cauline leaf angle, shrinkage and the mature characteristic on blade face judge, more can, from disclosing in essence the variation of the inherent material of tobacco leaf, hold more accurately the mature characteristic of each position tobacco leaf.
Summary of the invention
The inventor has carried out long-term and unremitting experimental exploring, to having carried out deep experimental study with the ripe closely-related every both macro and micro index of tobacco leaf, combination is on sucking the impact of mouthfeel simultaneously, a kind of thereby creatively obtained the determination methods of a kind of tobacco leaf maturation (degree of ripeness), and tobacco leaf picking method.The inventor is surprised to find, the tobacco leaf obtaining with respect to classic method, every both macro and micro index of the tobacco leaf obtaining according to determination methods of the present invention or collecting method is obviously superior, and the fragrance matter of tobacco leaf after baking is better, measure more enough, pleasant impression is pure comfortable.In addition, also effectively avoided adopting leafiness and adopted overdone leaf.Following invention is provided thus:
One aspect of the present invention relates to a kind of determination methods of tobacco leaf maturation, and it comprises according to the feature of arbitrarily at least 1,2,3 or 4 in the leaf look of tobacco leaf, vein, blade face and cauline leaf angle and shows the step judging.
A technical scheme of the present invention is that bottom leaf first starts maturation according to cigarette strain physiology growth characteristic, middle leaf maturation, upper leaf maturation successively.From the performance of tobacco leaf leaf look, vein, blade face, cauline leaf angle etc., tobacco leaf maturation is comprehensively judged.
The present invention is the outward appearance performance at field growing according to tobacco leaf, judges by turn white degree, fine hair dropping situations, cauline leaf angular dimension etc. of each position tobacco leaf color, main offshoot, gathers with the maturation that reaches each position tobacco leaf, avoids adopting leafiness and adopts overdone leaf.
According to the method described in any one of the present invention, wherein, leaf look is by green flavescence.
According to the method described in any one of the present invention, it is characterized in that any one in following (1)-(3) or multinomial:
(1) bottom leaf is take green as main;
(2) middle leaf yellowish green half and half;
(3) upper leaf is with Huang Weizhu.
Described take green as leading in the process referring to by green flavescence, green accounts for the more than 50% of blade face area.Describedly refer to that with Huang Weizhu, in the process by green flavescence, yellow accounts for the more than 50% of blade face area.
According to the method described in any one of the present invention, wherein, vein is white by blue-stain.
According to the method described in any one of the present invention, it is characterized in that any one in following (1)-(3) or multinomial:
(1) master pulse of bottom leaf 2/3 bleaches to complete white;
(2) middle leaf master pulse is entirely white, and offshoot starts to bleach;
(3) upper leaf master pulse, offshoot all bleach.
According to the method described in any one of the present invention, wherein, put down or gauffer on the blade face of middle leaf and/or upper leaf, and fine hair comes off, and gloss strengthens, and tobacco tar increases, and hand touches with sticky feel.
According to the method described in any one of the present invention, wherein, the yellowish-white spot projection of upper leaf tobacco leaf surface.
According to the method described in any one of the present invention, wherein, tobacco leaf blade tip last volume, blade is sagging, and cauline leaf angle increases.
According to the method described in any one of the present invention, wherein, cauline leaf angle is 80-100 degree, 85-95 degree, 88-92 degree or 90 degree.
According to the method described in any one of the present invention, it is characterized in that any one in following (1)-(3) or multinomial:
(1) bottom base of leaf leaf angle is 80-90 degree or 85-90 degree;
(2) middle leaf cauline leaf angle is 85-95 degree, 88-92 degree or 90 degree;
(3) upper leaf cauline leaf angle is 90-100 degree or 90-95 degree.
According to the method described in any one of the present invention, it is characterized in that any one in following (1)-(3) or multinomial:
(1) bottom leaf
Vein 2/3 master pulse bleaches, and rises to the tenth more than offshoot or 65% above leaf area flavescence or basic flavescence by phyllopodium, and green is slightly with on offshoot both sides; Blade tip fine hair slightly moves back, and cauline leaf angle approaches 90 °;
(2) middle leaf
Leaf green goes down, and blade face is pale yellow, the flavescence of blade tip leaf margin, turn white, master pulse is entirely white, offshoot 1/3 to 2/3 bleaches, the micro-Huang of leaf base, phyllopodium to the six offshoots above or 80% leaf area flavescence or basic flavescence, green is slightly with in a thready pulse both sides; Blade is sagging, leaf margin last volume, and ripe blade 1/2 to 2/3 place is obviously sagging is arc, increases (being obviously acute angle) with cane angle before, and cauline leaf angle reaches 90 degree left and right sometimes; Fine hair comes off, and tobacco tar increases, and blade face is glossy; Hand is touched tobacco leaf significantly sticky feel, and wrinkle is sent out on blade face, occurs yellow bubble spot;
(3) upper leaf
The one-piece blade yellow blade face that obviously falls is light yellow to faint yellow, and with a small amount of white dot, auricle flavescence bleaches, main, the full white hair of offshoot is bright, above leaf area 100% flavescence of phyllopodium to the five offshoot, only props up, thready pulse is slightly with green, and there are Huang, white ripe patch projection in blade face; Blade is sagging, leaf margin last volume, and limb edge and leaf tip are obviously bent downwardly, and cauline leaf angle is more than 90 degree; Fine hair comes off, and tobacco tar increases, and blade face is glossy; Wrinkle is sent out on blade face, has ripe spot; Alternatively, even have rust spot, blade tip leaf margin starts to occur dried-up.
According to the method described in any one of the present invention, it is characterized in that any one in following (1)-(3) or multinomial:
(1) the ripe judgement of bottom leaf
The standard of bottom leaf tobacco leaf judgement, 2/3 master pulse bleaches, and rises to the tenth more than offshoot or 65% above leaf area flavescence or flavescence substantially by phyllopodium, and green is slightly with on offshoot both sides; Blade tip fine hair slightly moves back, and cauline leaf angle approaches 90 degree,
Slightly see mature characteristic, medium well just can be gathered, ripe.
(2) the ripe judgement of middle leaf
Leaf green goes down, and blade face is pale yellow, the flavescence of blade tip leaf margin, turn white, master pulse is entirely white, offshoot 1/3 to 2/3 bleaches, the micro-Huang of leaf base, phyllopodium to the six offshoots above or 80% leaf area flavescence or basic flavescence, green is slightly with in a thready pulse both sides;
Blade is sagging, leaf margin last volume, and ripe blade 1/2 to 2/3 place is obviously sagging is arc, increases with cane angle, and cauline leaf angle reaches 90 degree sometimes; Fine hair comes off, and tobacco tar increases, and blade face is glossy.Hand is touched tobacco leaf significantly sticky feel, and wrinkle is sent out on blade face, occurs yellow bubble spot.
Ninety percent ripely just can gather, ripe.
(3) the ripe judgement of upper leaf
The one-piece blade Huang that obviously falls, it is light yellow to faint yellow that blade face is, and with a small amount of white dot, auricle flavescence bleaches, main, the full white hair of offshoot is bright, above leaf area 100% flavescence of phyllopodium to the five offshoot, only prop up, thready pulse is slightly with green, there are Huang, white ripe patch projection in blade face; Blade is sagging, leaf margin last volume, and limb edge and leaf tip are obviously bent downwardly, and cauline leaf angle is more than 90 degree;
Fine hair comes off, and tobacco tar increases, and blade face is glossy; Wrinkle is sent out on blade face, has ripe spot, even has rust spot, and blade tip leaf margin starts to occur dried-up.
Fully manifest mature characteristic, after hundred per cent is ripe, can gather, ripe.
In one embodiment of the invention, the determination methods of described tobacco leaf maturation is the determination methods of upper leaf maturation.
In one embodiment of the invention, the determination methods of described tobacco leaf maturation is the determination methods of middle leaf maturation.
In one embodiment of the invention, the determination methods of described tobacco leaf maturation is the determination methods of bottom leaf maturation.
Another aspect of the present invention relates to a kind of tobacco leaf picking method, the determination methods that it comprises the tobacco leaf maturation described in any one in the present invention.
Of the present inventionly relate in one aspect to a kind of tobacco leaf, it meets the determination methods of the tobacco leaf maturation described in any one in the present invention, or is obtained by tobacco leaf picking method of the present invention again.
In the present invention,
Term bottom leaf, middle leaf, upper leaf judge according to national standard gradation factor (GB2635-92, flue-cured tobacco [S]), mainly contain the indexs such as blade construction, identity, oil content, colourity, pulse-phase.Wherein, described identity, for referring to tobacco leaf identity, refers to the weight of tobacco leaf thickness, cell density or unit area, is also the concept of comprehensive state.
Described medium well, ninety percent ripe, the ripe basis for estimation of hundred per cent be mainly leaf color green in yellow degree, villus shedding situation, the blade porousness etc. on blade face thoroughly.The maturation of bottom leaf should be inabundant, and because bottom leaf is lighter, inclusions is less, and in follow-up bake process, biochemical variation comparatively fast, is difficult for scalding roasting fragrant.
Term " flue-cured tobacco " refers to tobacco leaf, annual herb, Solanaceae.Plant is by glandular hairs, high 1 meter of left and right.Petiole is not obvious or become aliform handle.Touch up leaf stickness with hand.Panicle top is raw.Calyx tubular, corolla funnel-form, likeness in form bugle, end pink.Capsule, seed tawny.Originate in South America, have cultivation all over the world.
The beneficial effect of the invention
Compared with classic method, the method has improved operability and the accuracy of Mature Tobacco Leaves judgement, has given prominence to the specific targets of judgement and in various degree and class; Therefore this method specific aim, regularity, comprehensive stronger, be easier to be grasped, and is applicable to the foundation of tobacco leaf picking work after current tobacco leaf structure optimization.
Embodiment
Below in conjunction with embodiment, embodiment of the present invention are described in detail, but it will be understood to those of skill in the art that the following example is only for the present invention is described, and should not be considered as limiting scope of the present invention.Unreceipted actual conditions person in embodiment, carries out according to the condition of normal condition or manufacturer's suggestion.The unreceipted person of production firm of agents useful for same or instrument, being can be by the conventional products of commercial acquisition.
embodiment 1: the tobacco leaf of gathering according to method of the present invention
1. gathering of tobacco leaf
Judge in accordance with the following methods and gather:
(1) bottom leaf
Vein, 2/3 master pulse bleaches, and rises to the tenth more than offshoot or 65% above leaf area flavescence or basic flavescence by phyllopodium, and green is slightly with on offshoot both sides; Blade tip fine hair slightly moves back, and cauline leaf angle approaches 90 °.
(2) middle leaf
Leaf green goes down, and blade face is pale yellow, the flavescence of blade tip leaf margin, turn white, master pulse is entirely white, offshoot 1/3 to 2/3 bleaches, the micro-Huang of leaf base, phyllopodium to the six offshoots above or 80% leaf area flavescence or basic flavescence, green is slightly with in a thready pulse both sides; Blade is sagging, leaf margin last volume, and ripe blade 1/2 to 2/3 place is obviously sagging is arc, increases with cane angle, and cauline leaf angle reaches 90 degree left and right sometimes; Fine hair comes off, and tobacco tar increases (be not limited to theoretical restriction, tobacco tar is that mesophyll cell is secreted on blade face), and blade face is glossy; Hand is touched tobacco leaf significantly sticky feel, and wrinkle is sent out on blade face, occurs yellow bubble spot.
(3) upper leaf
The one-piece blade yellow blade face that obviously falls is light yellow to faint yellow, and with a small amount of white dot, auricle flavescence bleaches, and (auricle refers to the position of blade near tobacco stem base portion, near becoming substantially a little large, as ear), main, the full white hair of offshoot is bright, above leaf area 100% flavescence of phyllopodium to the five offshoot, only prop up, thready pulse is slightly with green, there are Huang, white ripe patch projection in blade face; Blade is sagging, leaf margin last volume, and limb edge and leaf tip are obviously bent downwardly, and cauline leaf angle is more than 90 degree; Fine hair comes off, and tobacco tar increases, and blade face is glossy; Wrinkle is sent out on blade face, has ripe spot, even has rust spot, and blade tip leaf margin starts to occur dried-up.
2. the baking of tobacco leaf
The tobacco leaf of gathering (upper leaf, middle leaf, bottom leaf) is toasted according to conventional syllogic to (separately baking, bottom leaf is first roasting, up advances successively.According to the growth and maturity characteristic difference of each roasting hypo-tobacco leaf, baking time is adjusted to some extent).For the following examples 3-5.
embodiment 2: the tobacco leaf of gathering according to classic method
1. gathering of tobacco leaf
From same plot and same time, the implantation methods of tobacco leaf kind and cigarette seedling is also identical with the tobacco leaf picking of embodiment 1.
Specifically judge in accordance with the following methods and gather:
Bottom leaf: blade face yellow green, it is yellow that 6-7 becomes, and master pulse bleaches more than 1/2;
Middle leaf: blade face is light yellow, it is yellow that 7-8 becomes, and master pulse bleaches more than 2/3;
Upper leaf: blade face is light yellow, it is yellow that 8-9 becomes, and master pulse bleaches more than 3/4.
2. the baking of tobacco leaf
The baking method of tobacco leaf (upper leaf, middle leaf, bottom leaf) is identical with embodiment 1.For the following examples 3-5.
embodiment 3: the macro-indicators comparison of the tobacco leaf that distinct methods is gathered
1. laboratory sample
The tobacco leaf of the different collecting methods of embodiment 1 and 2, and through identical baking process processing.
2. experimental technique
Index relatively as shown in Table 1 below.
Blade construction, colourity, oil content judge according to " flue-cured tobacco " national standard (GB2635-92, flue-cured tobacco [S]) and matter sample.
3. experimental result
As table 1 below.
Table 1: the macro-indicators comparison of the tobacco leaf that distinct methods is gathered
(upper leaf, middle leaf and bottom leaf compare generally)
Result shows: the blade performance after the tobacco leaf of gathering by method of the present invention is roasting: degree of ripeness is more consistent, roasting rear blade does not have or few blue veins or floating blue or green, smooth or variegated tissue.
embodiment 4: sensory evaluating smoking's experiment
1. the sample of smokeing panel test
The tobacco leaf of the different collecting methods of embodiment 1 and 2, and through identical baking process processing, choose at random the each 5kg of top, middle part, lower tobacco leaf of embodiment 1 and 2, roll into single-tobacco-typed cigarette and smoke panel test.
2. the method for smokeing panel test
The overall method of smokeing panel test that circulates, specifically carries out (adopt scaling law check, maximum scale is 6) with reference to People's Republic of China (PRC) tobacco business standard tobacco and tobacco product sensory evaluation method YC/T138-1998.
3. smoking result
As shown in Table 2 below.
Table 2: sensory evaluating smoking's result
Table 2 single-tobacco-typed cigarette inherent quality assay
Result shows:
Adopt the tobacco aroma matter of embodiment 1 of method of the present invention better, measure more enough, pleasant impression is pure comfortable.
Adopt the tobacco aroma matter of existing methodical embodiment 2 general, measure lessly, assorted gas is more, and pungency is strong.
embodiment 5: the comparison of ingredients of the tobacco leaf that distinct methods is gathered
1. laboratory sample
The tobacco leaf of the different collecting methods of embodiment 1 and 2, and through identical baking process processing, the top, the each 5kg of middle part lower tobacco leaf that choose at random embodiment 1 and 2 carry out routine chemical components detection.
2. detection method
The detection method of each chemical composition content is carried out (State Tobacco Monopoly Bureau's issue) according to following standard method:
The mensuration continuous flow method of YC/T160-2002 tobacco and tobacco product total alkaloid;
The mensuration continuous flow method (mensuration of water-soluble sugar comprises the mensuration of total reducing sugar and reducing sugar, and total reducing sugar is to measure by the assay method of reducing sugar after being hydrolyzed into monose in fact) of YC/T159-2002 tobacco and tobacco product water-soluble sugar;
The mensuration continuous flow method of YC/T162-2011 tobacco and tobacco product chlorine;
The mensuration continuous flow method of YC/T217-2007 tobacco and tobacco product potassium.
3. testing result
As shown in Table 3 below.
Table 3: sample routine chemical components content comparison
Conventionally this area thinks that the content of total reducing sugar and reducing sugar is high a bit relatively good;
Whether suitable standard is to judge nicotine content: bottom leaf 1.5%-2.0%, middle leaf 2.0%-2.8%, upper leaf 3.0%-3.5%.
Visible, the component target of the tobacco leaf of gathering according to method of the present invention is better than the tobacco leaf that existing method is gathered.
Although the specific embodiment of the present invention has obtained detailed description, it will be understood to those of skill in the art that.According to disclosed all instructions, can carry out various modifications and replacement to those details, these change all within protection scope of the present invention.Four corner of the present invention is provided by claims and any equivalent thereof.
Claims (13)
1. a determination methods for tobacco leaf maturation, it comprises according to the feature of arbitrarily at least 1,2,3 or 4 in the leaf look of tobacco leaf, vein, blade face and cauline leaf angle and shows the step judging.
2. method according to claim 1, wherein, leaf look is by green flavescence.
3. method according to claim 2, is characterized in that any one in following (1)-(3) or multinomial:
(1) bottom leaf is take green as main;
(2) middle leaf yellowish green half and half;
(3) upper leaf is with Huang Weizhu.
4. method according to claim 1, wherein, vein is white by blue-stain.
5. method according to claim 4, is characterized in that any one in following (1)-(3) or multinomial:
(1) master pulse of bottom leaf 2/3 bleaches to complete white;
(2) middle leaf master pulse is entirely white, and offshoot starts to bleach;
(3) upper leaf master pulse, offshoot all bleach.
6. method according to claim 1, wherein, put down or gauffer on the blade face of middle leaf and/or upper leaf, and fine hair comes off, and gloss strengthens, and tobacco tar increases, and hand touches with sticky feel.
7. method according to claim 1, wherein, the yellowish-white spot projection of upper leaf tobacco leaf surface.
8. method according to claim 1, wherein, tobacco leaf blade tip last volume, blade is sagging, and cauline leaf angle increases.
9. method according to claim 8, wherein, cauline leaf angle is 80-100 degree, 85-95 degree, 88-92 degree or 90 degree.
10. method according to claim 8, is characterized in that any one in following (1)-(3) or multinomial:
(1) bottom base of leaf leaf angle is 80-90 degree or 85-90 degree;
(2) middle leaf cauline leaf angle is 85-95 degree, 88-92 degree or 90 degree;
(3) upper leaf cauline leaf angle is 90-100 degree or 90-95 degree.
11. methods according to claim 1, is characterized in that any one in following (1)-(3) or multinomial:
(1) bottom leaf
Vein 2/3 master pulse bleaches, and rises to the tenth more than offshoot or 65% above leaf area flavescence or basic flavescence by phyllopodium, and green is slightly with on offshoot both sides; Blade tip fine hair slightly moves back, and cauline leaf angle approaches 90 °;
(2) middle leaf
Leaf green goes down, and blade face is pale yellow, the flavescence of blade tip leaf margin, turn white, master pulse is entirely white, offshoot 1/3 to 2/3 bleaches, the micro-Huang of leaf base, phyllopodium to the six offshoots above or 80% leaf area flavescence or basic flavescence, green is slightly with in a thready pulse both sides; Blade is sagging, leaf margin last volume, and ripe blade 1/2 to 2/3 place is obviously sagging is arc, increases with cane angle, and cauline leaf angle reaches 90 degree left and right sometimes; Fine hair comes off, and tobacco tar increases, and blade face is glossy; Hand is touched tobacco leaf significantly sticky feel, and wrinkle is sent out on blade face, occurs yellow bubble spot;
(3) upper leaf
The one-piece blade yellow blade face that obviously falls is light yellow to faint yellow, and with a small amount of white dot, auricle flavescence bleaches, main, the full white hair of offshoot is bright, above leaf area 100% flavescence of phyllopodium to the five offshoot, only props up, thready pulse is slightly with green, and there are Huang, white ripe patch projection in blade face; Blade is sagging, leaf margin last volume, and limb edge and leaf tip are obviously bent downwardly, and cauline leaf angle is more than 90 degree; Fine hair comes off, and tobacco tar increases, and blade face is glossy; Wrinkle is sent out on blade face, has ripe spot; Alternatively, even have rust spot, blade tip leaf margin starts to occur dried-up.
12. 1 kinds of tobacco leaf picking methods, the determination methods that it comprises the tobacco leaf maturation described in any one in claim 1 to 11.
13. 1 kinds of tobacco leaves, it meets the determination methods of the tobacco leaf maturation described in any one in claim 1 to 11, or is obtained by the tobacco leaf picking method described in claim 12.
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| CN104568771A (en) * | 2014-12-21 | 2015-04-29 | 云南省烟草公司昆明市公司 | Economical, portable and efficient grading method for maturity of fresh tobacco leaves of flue-cured tobaccos |
| CN106248591A (en) * | 2016-08-10 | 2016-12-21 | 中国农业科学院烟草研究所 | A kind of Maturity of Tobacco Leaf differentiation utensil and differentiating method thereof |
| CN106501185A (en) * | 2016-10-31 | 2017-03-15 | 云南省烟草农业科学研究院 | A kind of method for rapidly judging of ripe cured tobacco leaf |
| CN108120802A (en) * | 2017-12-19 | 2018-06-05 | 广西中烟工业有限责任公司 | A kind of Maturity of Flue-cured Tobacco field investigation quantitative forecasting technique for being used to determine tobacco leaf suitable collection period |
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| CN107319625B (en) * | 2017-07-27 | 2018-04-13 | 山东临沂烟草有限公司 | A kind of 68 tobacco leaves in top, which are concentrated, adopts roasting method |
| CN109770410A (en) * | 2019-03-21 | 2019-05-21 | 贵州省烟草科学研究院 | A kind of tobacco leaf picking and roasting method |
| CN114073199B (en) * | 2021-11-22 | 2022-12-30 | 云南省烟草农业科学研究院 | Field tobacco leaf ripening and harvesting method for reducing content of lipid powder gas in flue-cured tobacco fragrance |
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| CN102183617B (en) * | 2011-03-22 | 2013-08-21 | 云南省烟草农业科学研究院 | Method for measuring harvest maturity of tobacco leaves |
| CN103238919B (en) * | 2013-05-20 | 2015-03-18 | 湖北中烟工业有限责任公司 | Preparation method for cured tobacco leaves |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568771A (en) * | 2014-12-21 | 2015-04-29 | 云南省烟草公司昆明市公司 | Economical, portable and efficient grading method for maturity of fresh tobacco leaves of flue-cured tobaccos |
| CN106248591A (en) * | 2016-08-10 | 2016-12-21 | 中国农业科学院烟草研究所 | A kind of Maturity of Tobacco Leaf differentiation utensil and differentiating method thereof |
| CN106248591B (en) * | 2016-08-10 | 2022-03-04 | 中国农业科学院烟草研究所 | Device for distinguishing maturity degree of tobacco leaves and distinguishing method thereof |
| CN106501185A (en) * | 2016-10-31 | 2017-03-15 | 云南省烟草农业科学研究院 | A kind of method for rapidly judging of ripe cured tobacco leaf |
| CN108120802A (en) * | 2017-12-19 | 2018-06-05 | 广西中烟工业有限责任公司 | A kind of Maturity of Flue-cured Tobacco field investigation quantitative forecasting technique for being used to determine tobacco leaf suitable collection period |
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|---|---|
| CN104737716A (en) | 2015-07-01 |
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