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KHAIRA DISEASE OF RICE
DR. RAJBIR SINGH
Assistant Professor
Department of Plant Pathology
Gochar Mahavidyalaya, Rampur Man...
Khaira disease of Rice
• Reported by Dr. Y. L. Nene
• Trai region of UP
• Loss – 25%
Symptoms:
• Seedling stage – 10-15 DA...
• On lower leaves – small brown / bronze /tan color spots
• Later spots merged – drying of leaves & become tan color
• Fir...
Disease Management
• Dressing of sprouted 1% zinc oxide
• Root dipping with 2% Zinc oxide for 1- 2 minutes
• Zinc sulphate...
Thank You
Khaira disease of rice
Khaira disease of rice
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Khaira disease of rice

This PPT includes introduction, symptoms, causal agents and management of khaira disease of rice

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Khaira disease of rice

  1. 1. KHAIRA DISEASE OF RICE DR. RAJBIR SINGH Assistant Professor Department of Plant Pathology Gochar Mahavidyalaya, Rampur Maniharan, Saharanpur (UP), India Affiliated to Ch. Charan Singh University, Meerut (UP), India Email: rajbir25805@yahoo.com, rajbirsingh2810@gmail.com Cell No. 91-9456613374
  2. 2. Khaira disease of Rice • Reported by Dr. Y. L. Nene • Trai region of UP • Loss – 25% Symptoms: • Seedling stage – 10-15 DAS • Firstly – interveinal chlorosis & on the base of new leaves in result formation of long white/yellow streaks
  3. 3. • On lower leaves – small brown / bronze /tan color spots • Later spots merged – drying of leaves & become tan color • First on upper then on lower surface of leaves • No Pl. growth • Roots - brown • Ear - less • Grain less & light in weight Cause agent – Deficiency of Zinc • Zn catalyze the enzymatic activities & oxidation reduction reaction
  4. 4. Disease Management • Dressing of sprouted 1% zinc oxide • Root dipping with 2% Zinc oxide for 1- 2 minutes • Zinc sulphate 25 – 30 kg/ha as soil application • 5 kg ZnSO4 + 2.5 kg slaked lime + 1000 litre water Ist spray after – 10 DAS in nursery IIend spray after – 20 DAS in nursery IIIrd spray after – 15-30 DAP
  5. 5. Thank You

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This PPT includes introduction, symptoms, causal agents and management of khaira disease of rice

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