Seed Health Management for Better Productivity - Govind Ballabh ...

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(Seed Health Management for Better Productivity)Problems related with potato seed:POTATO VIRUSES(a) Diseases caused by fungal pathogenDiseaseLate BlightPowdery ScabBlack ScurfCharcoal RotFusarium WiltVerticillium WiltDry RotSilver ScurfPink RotLeakBlack DotGangreneWartFungal PathogenPhytophthora infestansSpongospora subterraneaRhizoctonia solaniMacrophomina phaseolinaFusarium oxysporumVerticillium spp.Fusarium sambucinumHelminthosporium solaniPhytophthora erythrosepticaPythium spp.Colletotrichum atramentariumPhoma exigua var. exiguaSynchytrium endobioticum(b) Diseases caused by bacterial pathogenDiseaseCommon ScabBacterial Wilt or Brown RotBlack LegSoft RotRing RotPink Eye(c) Mechanical and physiological disordersDiseaseCrackingGreeningBlack heartHollow heartBlack spotPermissible limits of purity and diseases in cropsBacterial PathogenStreptomyces scabiesRalstonia solanacearumErwinia caratovora var. atrosepticaErwinia caratovora var. caratovoraClavibacter michiganensis sub sp. sepedonicusPseudomonas marginaliaBacterial PathogenBruises, cuts and deep abrasionsExposure to sunlightLow oxygen level in the interior of the tuberOver fertilization, high soil moisturePressure bruisingGrade of% plants infected withseed Off Mild Severe mosaic PLRV, Total Brown rot PSTVtype mosaic PVY, yellows virusesFS-I 0.05 1.0 0.5 1.0 - -FS-II 0.05 2.0 0.75 2.0 3 pl/ha -Certified 0.10 3.0 1.0 3.0 3 pl/ha -Permissible limits of seed tuber damages and diseasesGrade% incidence of tuber borne diseasesof seed Common scab Black scurf Cut/bruised LB Dry rot TotaldiseaseFS-I 5.0 5.0 1.0 1.0 1.0 5.0*FS-II 5.0 5.0 1.0 1.0 1.0 5.0- 208 -
(Seed Health Management for Better Productivity)Certified 5.0 5.0 5.0 1.0 1.0 5.0Plant Protection Schedule (healthy seed crop: hills)Chemical Insect/disease Doses Time of applicationChlorpyriphos Cutworms & white 15 kg/ha At planting in seed rows.(Dursban) grubMetasystox Aphids, jassids, 1.251/ha Drench the ridges when damage iswhite fliesnoticed.Rogor Aphids, jassids, 1.121/ha Every 10 days from 3rd week of Maywhite fliestill 1st week of August.Dithane M-45 Early blight, late 2 kg/ha Every 10 days from 3rd week of Mayblight & Phomatill 1st week of August.Metalaxyl(Ridomil)Late blight 2.5 kg/ha 3rd week of June & 1st week of Julycombined with insecticide at 8-10 daysinterval.Sevin Epilachna beetle,caterpillars & otherdefoliating insects.2.5 kg/ha In 2nd week of July on noticing the lateblight.Thiodan Epilachna beetle & 1.5 l/ha As & when damage on foliage isother defoliatingnoticed.insectsFuradan Cyst nematode 65kg/ha Soil application at the time of planting.Plant Protection Schedule (healthy seed crop: plains)Chemical Insect/disease Doses Time of applicationMetasystox Aphids, jassids, 1500ml/ha in At 10 days interval from 2nd week ofwhite flies 1000 lit water November to 3 rd week of December inUP, Punjab, Haryana & 1 st week ofJanuary in MP, Bihar & West Bengal.Rogor Aphids, jassids, 1250 ml/ha in At 10 days interval from 2nd week ofwhite flies 1000 lit water November to 3 rd week of December inUP, Punjab, Haryana & 1 st week ofJanuary in MP, Bihar & West Bengal.Dithane M-45 Early and late 2 kg/ha 2 nd week of November onward &blights, phomacombined with insecticide at 8-10 daysblightsinterval.Metalaxyl(Ridomil)Late blight 2.5 kg/ha On noticing the late blightPotato production in IndiaYearAreaProduction (million t) Yield (t/ha)(million ha)2000-01 1.211 22.142 18.22001-02 1.218 24.082 19.72002-03 1.337 23.181 17.32003-04 1.289 23.060 17.82004-05 1.318 23.631 17.9- 209 -
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Page 219 and 220: potential. An improvement in qualit
Page 221 and 222: 9. Session Arrangement CommitteeDr.
Page 223 and 224: 9. Dr. Pradip Kumar BorahSr. Scient
Page 225 and 226: TRAININGONANNEXURE-IIISEED HEALTH M
Page 227 and 228: ANNEXURE-IVCENTRE OF ADVANCED STUDI
Page 229 and 230: SundayApril 6MondayApril 7TuesdayAp
Page 231: TuesdayApril 15WednesdayApril 16Thu
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