Disease Epidemic and Severity of  Rice Blast ,  Rice Brown Spot  and  Rice Narrow Brown Spot   in Lower Yom Basin Off-seas...
<ul><li>Objectives </li></ul><ul><li>Show the case how to use geo-informatic and space technology to support the research ...
Study Area <ul><li>Lower Yom Basin </li></ul><ul><li>Covered 2 districts of Phitsanulok province </li></ul><ul><li>Covered...
Method 1. Satellite use LANDSAT 5 Supported by GISTDA  6 date beginning from December 2008 - May 2009
<ul><li>2. Paddy field survey </li></ul><ul><li>Rice diseases diagnosis and grading disease severity of  3 diseases   symp...
4. Confirmed the diseases causing agents under compond microscope in laboratory
Rice blast symptom  Caused of  Biporalis oryzae and  Curvularia lunata )
Rice brown spot symptom ( Biporalis oryzae )
Rice Narrow Brown Spot caused of  Cercospora oryzae
<ul><li>The difference growth stages of rice   had been used for paddy field area  classification. </li></ul><ul><li>Multi...
The raw data from the LANDSAT had been adjusted the intensity of band 3 and band 4 with linear equations. For provide the ...
Multispectral  from the LANDSAT in 7 periods Lower Yom Basin 9 th  December 2008
10 th  January 2009
26 th  January 2009
11 st  February 2009
27 th  February 2009
16 th  April 2009
18 th  May 2009
multispectral data from LANDSAT in each date had been using for create   DVI =  (B4-B3)  (B4+B3)
DVI on Lower Yom Basin 9 th  December 2008
DVI on Lower Yom Basin 10 th  January 2009
DVI on Lower Yom Basin 26 th  January 2009
DVI on Lower Yom Basin 11 th  February 2009
DVI on Lower Yom Basin 27 th  February 2009
DVI on Lower Yom Basin 16 th  April 2009
DVI on Lower Yom Basin 16 th  May 2009
Step 1 : Classified data from DVI in Multi Date (3 dates) Supervised classification into 5 classes  Class 1 = Bared soil  ...
Step 3 : Calculation paddy field area in each growth stage Seedling Stage
Tillering Stage January 2009
Maturing Stage or Flowering Stage February 2009
Harvesting Stage March 2009
Preparation Stage April 2009
Seedling Stage May 2009
Percentage of area under off - season rice growth stages .
Days   after planting %DVI % DVI = -0.0222X 2  + 2.5325X - 15.178 ;  R 2  = 0.809 Tillering  Stage 57   days
<ul><li>1) Equation for Calculate  </li></ul><ul><li>Age of Rice on Seedling Stage and Tillering Stage </li></ul><ul><li>=...
<ul><li>- Off season rice data had been collected from December 2008 until May 2009. </li></ul><ul><li>Linear Correlation ...
Dbl =  Rice Blast Disease Ds = Rice Brown Spot Dst = Rice Narrow Brown Spot or Streak
<ul><li>Dbl   =  -.027PlantD  + 0.044Age + 7.40  ; R 2 = .150, F= 44.536 Sig.= 0.000 </li></ul><ul><li>( t= -5.467)  ( t=-...
DVI Stage   R Stage   R DBL  Dec09
showed  ≤  10% = 66.99% December 2008 showed  ≤  15% = 33.02% Rice Blast Disease Severity
January 2009 showed  ≤  10%   = 93.69% Rice Blast Disease Severity
showed  ≤  15%   = 31.91% February 2009 showed  ≤  10%   = 46.78% Rice Blast Disease Severity showed  ≤  5%   =  26.70%
Rice Blast Disease Severity showed  ≤  15% = 47.85% showed ≤ 10% = 20.24%  March 2009 showed  ≤  5%   =  20.24%
April 2009 showed  ≤  15% = 15.88% showed ≤ 10% = 34.93%  showed  ≤  5%   =  49.18% Rice Blast Disease Severity
May 2009 showed  ≤  15% =  3.84% showed ≤ 10% = 13.89%  showed  ≤  5%   =  82.27% Rice Blast Disease Severity
February   2009 showed ≤ 10% = 14.66%  showed  ≤  5%   =  82.54% Rice Brown Spot Disease Severity showed no symptom = 2.80%
March 2009 showed ≤ 10% = 70.96%  showed  ≤  5%   =  29.04% Rice Brown Spot Disease Severity
April 2009 showed ≤ 10% = 95.54%  showed no symptom   = 6.46% Rice Brown Spot Disease Severity
May  2009 Rice Brown Spot Disease Severity showed ≤ 10% = 96.31%  showed no symptom   = 3.69%
Rice Narrow Brown Spot   Disease Severity showed  ≤  5%  =  58.16% February 2009 showed no symptom =41.81%
March 2009 showed no symptom  = 14.84% showed  ≤  5%  =  85.66% Rice Narrow Brown Spot   Disease Severity
showed  ≤  5%  =  100%  April 2009 Rice Narrow Brown Spot   Disease Severity
Rice Narrow Brown Spot Severity showed  ≤  5%  =  100% May 2009
Conclusion Rice blast disease severity was decreased from January to May. Off-season rice growing area showed moderately d...
- Rice brown spot symptom was not found on December and January. But rice brown spot disease was increasing in infection a...
Acknowledgement <ul><li>GISTDA for research financial and satellite data support. </li></ul><ul><li>Assist. Prof. Vicharn ...
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Disease Epidemic and Severity of Rice Blast, Rice Brown Spot and Rice Narrow Brown Spot in Lower Yom Basin Off-season Rice Using Geo-Informatics

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Presented in “China – Thailand Geo-Informatics Workshop Series I: Agricultural Applications” 30 June - 2 July 2010 at Pattaya, Thailand

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Disease Epidemic and Severity of Rice Blast, Rice Brown Spot and Rice Narrow Brown Spot in Lower Yom Basin Off-season Rice Using Geo-Informatics

  1. 1. Disease Epidemic and Severity of Rice Blast , Rice Brown Spot and Rice Narrow Brown Spot in Lower Yom Basin Off-season Rice Using Geo-Informatics
  2. 2. <ul><li>Objectives </li></ul><ul><li>Show the case how to use geo-informatic and space technology to support the research of rice disease epidemic and severity in the Lower Yom Basin </li></ul>
  3. 3. Study Area <ul><li>Lower Yom Basin </li></ul><ul><li>Covered 2 districts of Phitsanulok province </li></ul><ul><li>Covered 3 districts of Phichit province </li></ul><ul><li>2,000 Sq.Km </li></ul>
  4. 4. Method 1. Satellite use LANDSAT 5 Supported by GISTDA 6 date beginning from December 2008 - May 2009
  5. 5. <ul><li>2. Paddy field survey </li></ul><ul><li>Rice diseases diagnosis and grading disease severity of 3 diseases symptoms </li></ul><ul><li>Seedling stage 1 – 30 days </li></ul><ul><li>Tillering stage 31-51 days </li></ul><ul><li>Flowering Stage 51-80 days </li></ul><ul><li>Maturing Stage more than 81 days </li></ul>3. Recorded the coordinate of sampling plots
  6. 6. 4. Confirmed the diseases causing agents under compond microscope in laboratory
  7. 7. Rice blast symptom Caused of Biporalis oryzae and Curvularia lunata )
  8. 8. Rice brown spot symptom ( Biporalis oryzae )
  9. 9. Rice Narrow Brown Spot caused of Cercospora oryzae
  10. 10. <ul><li>The difference growth stages of rice had been used for paddy field area classification. </li></ul><ul><li>Multispectral from the LANDSAT in 7 periods </li></ul><ul><li>Start from November 2008 until May 2009 </li></ul>
  11. 11. The raw data from the LANDSAT had been adjusted the intensity of band 3 and band 4 with linear equations. For provide the valuable information on the intensity between 0 - 255.
  12. 12. Multispectral from the LANDSAT in 7 periods Lower Yom Basin 9 th December 2008
  13. 13. 10 th January 2009
  14. 14. 26 th January 2009
  15. 15. 11 st February 2009
  16. 16. 27 th February 2009
  17. 17. 16 th April 2009
  18. 18. 18 th May 2009
  19. 19. multispectral data from LANDSAT in each date had been using for create DVI = (B4-B3) (B4+B3)
  20. 20. DVI on Lower Yom Basin 9 th December 2008
  21. 21. DVI on Lower Yom Basin 10 th January 2009
  22. 22. DVI on Lower Yom Basin 26 th January 2009
  23. 23. DVI on Lower Yom Basin 11 th February 2009
  24. 24. DVI on Lower Yom Basin 27 th February 2009
  25. 25. DVI on Lower Yom Basin 16 th April 2009
  26. 26. DVI on Lower Yom Basin 16 th May 2009
  27. 27. Step 1 : Classified data from DVI in Multi Date (3 dates) Supervised classification into 5 classes Class 1 = Bared soil Class 2 = Seedling Stage Class 3 = Tillering Stage Class 4 =Maturing Stage Class 5 = Haversting Stage Step 2 : Intersect paddy field frame which derived from Land Development Department
  28. 28. Step 3 : Calculation paddy field area in each growth stage Seedling Stage
  29. 29. Tillering Stage January 2009
  30. 30. Maturing Stage or Flowering Stage February 2009
  31. 31. Harvesting Stage March 2009
  32. 32. Preparation Stage April 2009
  33. 33. Seedling Stage May 2009
  34. 34. Percentage of area under off - season rice growth stages .
  35. 35. Days after planting %DVI % DVI = -0.0222X 2 + 2.5325X - 15.178 ; R 2 = 0.809 Tillering Stage 57 days
  36. 36. <ul><li>1) Equation for Calculate </li></ul><ul><li>Age of Rice on Seedling Stage and Tillering Stage </li></ul><ul><li>= 57 – (3138.002 –( %DVI*45.0451)) ½ </li></ul>2) Equation for Calculate Age of Rice on Maturing Stage and Harvesting Stage = 57 + (3138.002 –( %DVI*45.0451)) ½ Equation for Calculation Growth Stage of Rice
  37. 37. <ul><li>- Off season rice data had been collected from December 2008 until May 2009. </li></ul><ul><li>Linear Correlation (r) between Planting Date and Age of Rice </li></ul>Planting Date (on 1 st November until 31 st May is the timing to begin palnting off season) Age of rice (beginning from sowing day or planting day until harvesting day)
  38. 38. Dbl = Rice Blast Disease Ds = Rice Brown Spot Dst = Rice Narrow Brown Spot or Streak
  39. 39. <ul><li>Dbl = -.027PlantD + 0.044Age + 7.40 ; R 2 = .150, F= 44.536 Sig.= 0.000 </li></ul><ul><li>( t= -5.467) ( t=-5.467) ( t=9.432) </li></ul>Equation for calculated plant disease severity Ds = .039PlantD + .068Age - 1.075 ; R2= .101, F= 28.384 Sig.= 0.000 ( t= 6.930) ( t= 5.781) ( t= -1.182) Dst = .024PlantD + .039Age - 1.938 ; R2= .382, F= 156.343 Sig.= 0.00 0 ( t= 16.580) ( t= 13.005) ( t= -8.384)
  40. 40. DVI Stage R Stage R DBL Dec09
  41. 41. showed ≤ 10% = 66.99% December 2008 showed ≤ 15% = 33.02% Rice Blast Disease Severity
  42. 42. January 2009 showed ≤ 10% = 93.69% Rice Blast Disease Severity
  43. 43. showed ≤ 15% = 31.91% February 2009 showed ≤ 10% = 46.78% Rice Blast Disease Severity showed ≤ 5% = 26.70%
  44. 44. Rice Blast Disease Severity showed ≤ 15% = 47.85% showed ≤ 10% = 20.24% March 2009 showed ≤ 5% = 20.24%
  45. 45. April 2009 showed ≤ 15% = 15.88% showed ≤ 10% = 34.93% showed ≤ 5% = 49.18% Rice Blast Disease Severity
  46. 46. May 2009 showed ≤ 15% = 3.84% showed ≤ 10% = 13.89% showed ≤ 5% = 82.27% Rice Blast Disease Severity
  47. 47. February 2009 showed ≤ 10% = 14.66% showed ≤ 5% = 82.54% Rice Brown Spot Disease Severity showed no symptom = 2.80%
  48. 48. March 2009 showed ≤ 10% = 70.96% showed ≤ 5% = 29.04% Rice Brown Spot Disease Severity
  49. 49. April 2009 showed ≤ 10% = 95.54% showed no symptom = 6.46% Rice Brown Spot Disease Severity
  50. 50. May 2009 Rice Brown Spot Disease Severity showed ≤ 10% = 96.31% showed no symptom = 3.69%
  51. 51. Rice Narrow Brown Spot Disease Severity showed ≤ 5% = 58.16% February 2009 showed no symptom =41.81%
  52. 52. March 2009 showed no symptom = 14.84% showed ≤ 5% = 85.66% Rice Narrow Brown Spot Disease Severity
  53. 53. showed ≤ 5% = 100% April 2009 Rice Narrow Brown Spot Disease Severity
  54. 54. Rice Narrow Brown Spot Severity showed ≤ 5% = 100% May 2009
  55. 55. Conclusion Rice blast disease severity was decreased from January to May. Off-season rice growing area showed moderately disease severity in 33.02 of planting area. But showed low disease severity in 82.27% of planting area.
  56. 56. - Rice brown spot symptom was not found on December and January. But rice brown spot disease was increasing in infection area on February until May, in the low level of disease severity. - Rice narrow brown spot symptom was not found on December and January. But rice narrow brown spot disease was increasing in infection area on February until May, in the low level of disease severity
  57. 57. Acknowledgement <ul><li>GISTDA for research financial and satellite data support. </li></ul><ul><li>Assist. Prof. Vicharn Amarakul for GIS analysis </li></ul>

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