CN108647814A - A kind of forecasting procedure that Powdery Mildew in Tobacco occurs - Google Patents
A kind of forecasting procedure that Powdery Mildew in Tobacco occurs Download PDFInfo
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- CN108647814A CN108647814A CN201810416465.3A CN201810416465A CN108647814A CN 108647814 A CN108647814 A CN 108647814A CN 201810416465 A CN201810416465 A CN 201810416465A CN 108647814 A CN108647814 A CN 108647814A
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- 241000221785 Erysiphales Species 0.000 title claims abstract description 70
- 235000002637 Nicotiana tabacum Nutrition 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims abstract description 16
- 244000061176 Nicotiana tabacum Species 0.000 title description 3
- 241000208125 Nicotiana Species 0.000 claims abstract description 64
- 241000196324 Embryophyta Species 0.000 claims abstract description 36
- 201000010099 disease Diseases 0.000 claims abstract description 31
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 claims abstract description 31
- 241000990144 Veronica persica Species 0.000 claims description 26
- 230000003902 lesion Effects 0.000 claims description 15
- 241001573881 Corolla Species 0.000 claims description 6
- 238000011835 investigation Methods 0.000 claims description 4
- 102000002322 Egg Proteins Human genes 0.000 claims description 3
- 108010000912 Egg Proteins Proteins 0.000 claims description 3
- 241000013557 Plantaginaceae Species 0.000 claims description 3
- 239000002775 capsule Substances 0.000 claims description 3
- 210000003734 kidney Anatomy 0.000 claims description 3
- 210000004681 ovum Anatomy 0.000 claims description 3
- 210000003462 vein Anatomy 0.000 claims description 3
- 230000003442 weekly effect Effects 0.000 claims description 3
- 241000407417 Veronica agrestis Species 0.000 claims 1
- 239000000843 powder Substances 0.000 abstract description 6
- 208000024891 symptom Diseases 0.000 abstract 1
- 230000002265 prevention Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 4
- 206010059866 Drug resistance Diseases 0.000 description 2
- 241000896246 Golovinomyces cichoracearum Species 0.000 description 2
- 241000208041 Veronica Species 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 208000031888 Mycoses Diseases 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002062 proliferating effect Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- G06Q10/04—Forecasting or optimisation specially adapted for administrative or management purposes, e.g. linear programming or "cutting stock problem"
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
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Abstract
The invention discloses the forecasting procedures that a kind of Powdery Mildew in Tobacco occurs, and include the following steps：In tobacco planting season, forecast indicator plant is planted or placed around vega, the time of white powder disease symptoms occurs by observing indicator plant face of blade, to predict Powdery Mildew in Tobacco imminent period；By measuring the disease index of indicator plant blade powdery mildew, to forecast the imminent severity of Powdery Mildew in Tobacco；Control stage that is close and instructing Powdery Mildew in Tobacco.The present invention has the preferable value of forecasting, method easy, reliable, easy to operate.
Description
Technical field
The present invention relates to plant protection arts, relate in particular to a kind of forecasting procedure that Powdery Mildew in Tobacco occurs.
Background technology
Powdery Mildew in Tobacco (tobacco white powder) is that the very strong disease of harmfulness, pathogenic bacteria are on tobacco leaf production
Golovinomyces cichoracearum (with Erysiphe cichoracearum DC), host range is wide and harmfulness
By force, belong to gas fax fungal disease, which has generation in floating seedlings to flue-cured tobacco entire breeding time.It China with south China,
Southwest and Central China cigarette district are the most universal, and for diseased plant rate up to 100%, morbidity leaf rate is serious reachable generally 10%~20%
80% or more, cause serious financial consequences to tobacco grower.In the case where disease occurs in field, germ is spread quickly, is seriously threatened
The production of tobacco, therefore extremely urgent to the prevention of Powdery Mildew in Tobacco.
For a long time, in production Powdery Mildew in Tobacco is prevented mainly by chemical prevention medicament.The prevention medicine of Powdery Mildew in Tobacco
Agent type is single, and use in long-term high dose has made Powdery Mildew field population produce extensive drug resistance.Since tobacco is white
Powder germ has the characteristic that proliferative speed is high, hereditary variation is big and grade of fit is high, chemical agent more and more difficult to its prevention.
Other than generating extensive, high-caliber drug resistance, the main reason for Powdery Mildew in Tobacco is difficult to prevent is that the disease early period of origination is difficult
To find, generation period and state of an illness radix can not be predicted in time, tobacco grower can not be instructed to prevent in time；In addition, tobacco grower due to
Know-how is limited, can not also prepare the generation period for judging powdery mildew and the time of scientific prevention and cure.After disease appearance,
A large amount of conidium will be generated rapidly, and conidium can on a large scale be propagated by wind, and when condition is suitable, field will
Occur multiple infection centers rapidly, hazard area will further expand.Therefore, easy, reliable, easy-operating tobacco white powder is found
The forecasting procedure of disease, the time of origin and severity for using it for forecast Powdery Mildew in Tobacco have wide application space, together
When be also scientific guidance Powdery Mildew in Tobacco prevention needs.
Invention content
The one kind provided it is an object of the invention to overcome the above problem has a preferable value of forecasting, method is easy,
Reliably, the forecasting procedure that easy-operating Powdery Mildew in Tobacco occurs.
The forecasting procedure that a kind of Powdery Mildew in Tobacco of the present invention occurs.Include the following steps：
(1) preparation of indicator plant：
The seed of Veronica persica is planted during 9-10 in basin alms bowl, or before flue-cured tobacco transplanting 7-10 days from weeds in field
In take Veronica persica plant, planted in basin alms bowl, it made to grow blade；
(2) placement of indicator plant vega：
When tobacco transplant, places planting in the basin alms bowl for having Veronica persica or be planted in vega surrounding or vega, the plant
The normal growth under the weather conditions of field；
(3) investigation of period and disease index occurs for indicator plant powdery mildew：
After tobacco seedlings transplanting, the generation period of powdery mildew on indicator plant Veronica persica blade around vega, note are observed weekly
Record disease time.After the onset, the disease index of a powdery mildew is investigated per 5d, continuous observation 10 days is united according to the state of an illness below
Score grade carries out state of an illness statistics according to blade onset area：
0 grade：Full leaf is disease-free；
1 grade：Lesion area accounts for 5% or less blade area；
3 grades：Lesion area accounts for the 6%~10% of blade area；
5 grades：Lesion area accounts for the 11%~20% of blade area；
7 grades：Lesion area accounts for the 21%~40% of blade area；
9 grades：Lesion area accounts for 41% of blade area or more.
(4) forecast of period and severity occurs for Powdery Mildew in Tobacco
After powdery mildew occurs in self-discovery Veronica persica, its disease index is investigated immediately, and investigates its disease respectively in 5,10 days
Feelings index.By the rate of rise of disease index, to judge the imminent severity of Powdery Mildew in Tobacco.Rate of rise>
10%, powdery mildew occurrence degree risk is high；5%<Rate of rise<10%, powdery mildew occurrence degree medium risk is horizontal；Increase speed
Rate<5%, the low equal risk levels of powdery mildew occurrence degree.
The forecasting procedure that above-mentioned Powdery Mildew in Tobacco occurs.Wherein：Veronica persica (Veronica persica) is
Scrophulariaceae, Veronica paving dissipates multi-branched herbaceous plant, high up to 50 centimetres.Blade short handle, egg shape or circular shape, raw flower in armpit
Title bract, edge tool cognate, two sides sparsely grow pubescence, raceme are very long；Bennet is longer than bract, sliver ovum shape lanceolar, corolla
Blue, purple or bluish violet, stamen are shorter than corolla.Capsule kidney shape, net vein is apparent, and tool deep band in the seed back side is opened the 3-5 months
Flower.
Compared with prior art, the present invention there is apparent advantageous effect, as can be known from the above technical solutions：The present invention selects
Indicator plant Veronica persica is because it is compared with tobacco plant, and Veronica persica plant is short and small, powdery mildew on blade
Generation period it is 5-10 days usually more early than Powdery Mildew in Tobacco, when observe there is powdery mildew on Veronica persica blade after, cigarette
Careless powdery mildew will also occur after 5-10 days.In tobacco transplant indicator plant, indicator plant are placed or plant on vega periphery
The investigation of period and disease index occurs for powdery mildew, Powdery Mildew in Tobacco occurs period and severity is forecast.Through field
Between tobacco white powder occur forecast experiment show：The present invention is capable of the time of origin of accurate forecast Powdery Mildew in Tobacco, and forecast tobacco
The germ severity of Powdery Mildew.The present invention has the preferable value of forecasting.Indicator plant is easily cultivated, manages, observes, prediction
Method is easy, reliable, easy to operate, is conducive to timely prevention of the scientific guidance tobacco grower to Powdery Mildew in Tobacco, reduces tobacco white powder
The harm of disease, has ensured the safety in production of tobacco leaf.
Specific implementation mode
Embodiment 1
A kind of forecasting procedure that Powdery Mildew in Tobacco occurs, includes the following steps：
(1) preparation of indicator plant：
It is indicator plant to select plant Veronica persica (Veronica persica), which is Scrophulariaceae, Veronica
Paving dissipates multi-branched herbaceous plant, high up to 50 centimetres.Blade short handle, egg shape or circular shape, the title bract of raw flower in armpit, edge tool are blunt
Tooth, two sides sparsely grow pubescence, raceme are very long；Bennet is longer than bract, sliver ovum shape lanceolar, corolla blue, purple or royal purple
Color, stamen are shorter than corolla.Capsule kidney shape, net vein is apparent, and tool deep band in the seed back side is bloomed the 3-5 months；By Veronica persica
Seed planted during 9-10 in basin alms bowl, or 7-10 days before flue-cured tobacco transplanting take Veronica persica from weeds in field
Plant is planted in basin alms bowl, it is made to grow blade；
(2) placement of indicator plant vega：
When tobacco transplant, vega surrounding is placed or is planted in by planting in the basin alms bowl for having Veronica persica, the plant is in field gas
Normal growth under the conditions of time；
(3) investigation of period and disease index occurs for indicator plant powdery mildew：
After tobacco seedlings transplanting, the generation period of powdery mildew on indicator plant Veronica persica blade around vega, note are observed weekly
Record disease time.After the onset, the disease index of a powdery mildew is investigated per 5d, continuous observation 10 days is united according to the state of an illness below
Score grade carries out state of an illness statistics according to blade onset area：
0 grade：Full leaf is disease-free；
1 grade：Lesion area accounts for 5% or less blade area；
3 grades：Lesion area accounts for the 6%~10% of blade area；
5 grades：Lesion area accounts for the 11%~20% of blade area；
7 grades：Lesion area accounts for the 21%~40% of blade area；
9 grades：Lesion area accounts for 41% of blade area or more.
(4) forecast of period and severity occurs for Powdery Mildew in Tobacco
Compared with tobacco plant, indicator plant Veronica persica plant is short and small, and the generation period of powdery mildew is usual on blade
5-10 days more early than Powdery Mildew in Tobacco, when observing that Powdery Mildew in Tobacco also will be in after there is powdery mildew on Veronica persica blade
Occur after 5-10 days, period of disease that is close by inquiry and determining Powdery Mildew in Tobacco.There is powdery mildew in self-discovery Veronica persica
Afterwards, its disease index is investigated immediately, and investigates its disease index respectively in 5,10 days.By the rate of rise of disease index, come
Judge the imminent severity of Powdery Mildew in Tobacco.Rate of rise>10%, powdery mildew occurrence degree risk is high；5%<Increase
Rate<10%, powdery mildew occurrence degree medium risk is horizontal；Rate of rise<5%, the low equal risk levels of powdery mildew occurrence degree.
It the results are shown in Table 1.
Embodiment 2
A kind of forecasting procedure that Powdery Mildew in Tobacco occurs, includes the following steps：
(1) with embodiment 1；
(2) placement of indicator plant vega：
When tobacco transplant, places or be planted in vega in the basin alms bowl for having Veronica persica by planting, the plant is in field weather
Under the conditions of normal growth；
(3) (4) are the same as embodiment 1.It the results are shown in Table 1.
Embodiment 3
A kind of forecasting procedure that Powdery Mildew in Tobacco occurs, includes the following steps：
(1) with embodiment 1；
(2) placement of indicator plant vega：
When tobacco transplant, places planting in the basin alms bowl for having Veronica persica or be planted in vega surrounding or vega, the plant
The normal growth under the weather conditions of field；
(3) (4) are the same as embodiment 1.It the results are shown in Table 1.
1 indicator plant of table handles the forecast that Powdery Mildew in Tobacco occurs
Powdery Mildew in Tobacco occur field forecast experiments the result shows that, indicator plant processing group can be good at prevent Powdery Mildew in Tobacco
Time of origin and severity, the pre- rate of accuracy reached that calls time is to 95% or more, powdery mildew severity rate of accuracy reached 96%
More than.
The above described is only a preferred embodiment of the present invention, being not intended to limit the present invention in any form, appoint
What is simply repaiied to any made by above example according to the technical essence of the invention without departing from technical solution of the present invention content
Change, equivalent variations and modification, in the range of still falling within technical solution of the present invention.
Claims (2)
1. the forecasting procedure that a kind of Powdery Mildew in Tobacco occurs, includes the following steps：
（1）The preparation of indicator plant：
The seed of Veronica persica is planted during 9-10 in basin alms bowl, or before flue-cured tobacco transplanting 7-10 days from weeds in field
In take Veronica persica plant, planted in basin alms bowl, it made to grow blade；
（2）The placement of indicator plant vega：
When tobacco transplant, places planting in the basin alms bowl for having Veronica persica or be planted in vega surrounding or vega, the plant
The normal growth under the weather conditions of field；
（3）The investigation of period and disease index occurs for indicator plant powdery mildew：
After tobacco seedlings transplanting, the generation period of powdery mildew on indicator plant Veronica persica blade around vega, note are observed weekly
Record disease time；After the onset, every 5 d investigates the disease index of a powdery mildew, and continuous observation 10 days is united according to the state of an illness below
Score grade carries out state of an illness statistics according to blade onset area：
0 grade：Full leaf is disease-free；
1 grade：Lesion area accounts for 5% or less blade area；
3 grades：Lesion area accounts for the 6%~10% of blade area；
5 grades：Lesion area accounts for the 11%~20% of blade area；
7 grades：Lesion area accounts for the 21%~40% of blade area；
9 grades：Lesion area accounts for 41% of blade area or more；
（4）The forecast of period and severity occurs for Powdery Mildew in Tobacco
After powdery mildew occurs in self-discovery Veronica persica, its disease index is investigated immediately, and investigates its disease respectively in 5,10 days
Feelings index；By the rate of rise of disease index, to judge the imminent severity of Powdery Mildew in Tobacco；Rate of rise>
10%, powdery mildew occurrence degree risk is high；5%<Rate of rise<10%, powdery mildew occurrence degree medium risk is horizontal；Rate of rise<
5%, the low equal risk levels of powdery mildew occurrence degree.
2. the forecasting procedure that Powdery Mildew in Tobacco as described in claim 1 occurs, wherein：Veronica persica is Scrophulariaceae, mother-in-law
Procumbent speedwell belongs to paving and dissipates multi-branched herbaceous plant, high up to 50 centimetres；Blade short handle, egg shape or circular shape, the title bract of raw flower, side in armpit
Edge tool cognate, two sides sparsely grow pubescence, raceme are very long；Bennet is longer than bract, sliver ovum shape lanceolar, corolla blue, purple
Or bluish violet, stamen are shorter than corolla；Capsule kidney shape, net vein is apparent, and tool deep band in the seed back side is bloomed the 3-5 months.
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| CN201810416465.3A CN108647814B (en) | 2018-05-03 | 2018-05-03 | Method for forecasting occurrence of powdery mildew of tobacco |
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| CN201810416465.3A CN108647814B (en) | 2018-05-03 | 2018-05-03 | Method for forecasting occurrence of powdery mildew of tobacco |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111727785A (en) * | 2020-07-27 | 2020-10-02 | 贵州省烟草科学研究院 | Method for forecasting initiation period of tobacco bacterial wilt |
| CN111727783A (en) * | 2020-07-27 | 2020-10-02 | 贵州省烟草科学研究院 | Method for forecasting starting period of alternaria alternata |
| CN112913592A (en) * | 2021-01-22 | 2021-06-08 | 中国农业科学院果树研究所 | Planting method of grape garden samara chrysanthemum and method for preventing grape powdery mildew by using samara chrysanthemum |
| CN115018131A (en) * | 2022-05-18 | 2022-09-06 | 北京市农林科学院 | Method for simulating grape downy mildew disease leaf rate with regional portability |
| CN116267445A (en) * | 2023-03-23 | 2023-06-23 | 上海华维可控农业科技集团股份有限公司 | Controllable agricultural cultivation method for preventing and controlling plant virus diseases |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111727785A (en) * | 2020-07-27 | 2020-10-02 | 贵州省烟草科学研究院 | Method for forecasting initiation period of tobacco bacterial wilt |
| CN111727783A (en) * | 2020-07-27 | 2020-10-02 | 贵州省烟草科学研究院 | Method for forecasting starting period of alternaria alternata |
| CN112913592A (en) * | 2021-01-22 | 2021-06-08 | 中国农业科学院果树研究所 | Planting method of grape garden samara chrysanthemum and method for preventing grape powdery mildew by using samara chrysanthemum |
| CN115018131A (en) * | 2022-05-18 | 2022-09-06 | 北京市农林科学院 | Method for simulating grape downy mildew disease leaf rate with regional portability |
| CN116267445A (en) * | 2023-03-23 | 2023-06-23 | 上海华维可控农业科技集团股份有限公司 | Controllable agricultural cultivation method for preventing and controlling plant virus diseases |
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| Publication number | Publication date |
|---|---|
| CN108647814B (en) | 2022-03-18 |
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