Studies on epidemiology and management of pink canker (Corticium salmonicolor Berk. & Br.) in apple

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dc.contributor.advisorVed Ram
dc.contributor.authorDurga Prashad
dc.date.accessioned2017-06-03T11:19:46Z
dc.date.available2017-06-03T11:19:46Z
dc.date.issued2013
dc.description.abstractPink canker (Corticium salmonicolor Berk. and Br.) in apple is one of the major limiting factor in its cultivation affecting both yield and fruit quality in Himachal Pradesh. Present investigations were undertaken with an objective to study the prevalence of the disease, role of abiotic environmental factors in disease development and to devise suitable disease management strategies. Pink canker was found to occur in moderate to severe form in different apple growing areas of Mandi, Shimla, Kullu and Sirmour districts of Himachal Pradesh. Based on morphological, cultural and molecular characters, the pathogen was identified as Corticium salmonicolor Berk. and Br. Moderate temperatures (19 + 2o C) coupled with high RH (80%) favoured disease development. Conidial germination and germ tube length was high in Mandi isolate. Out of nine cultivars only, Tydeman Early Worcester was found moderately susceptible under field conditions. Ace Spur, Spur Winter Banana and Granny Smith exhibited moderately resistant reaction under flask condition. Under congenial condition, the pathogen infected leaves and fruits of Royal Delicious. Among integration of fungicide and plant oils, integration of Contaf + Brassica juncea var. cunefolia and combinaion of Score + Brassica juncea var. cunefolia provided maximum wound recovery (92.94% and 91.86% respectively) and callus formation (>10 mm). The combination of Contaf + Cow urine + Melia azedarach + Vitex negundo + Artimisia roxburghiana + Juglans regia + Roylea elegans and Score + Cow urine + Melia azedarach + Vitex negundo + Artimisia roxburghiana + Juglans regia + Roylea elegans in white paint exhibited maximum wound recovery (87.17% and 85.81% respectively) and callus formation (>10 mm) during 2011-12. Among combination of fungicides + antagonists, significantly maximum wound recovery (80.47%) was recorded in Contaf + Pseudomonas sp. followed by a combination of Contaf + Trichoderma hamatum (79.95%).en_US
dc.identifier.urihttp://krishikosh.egranth.ac.in/handle/1/5810017202
dc.language.isoenen_US
dc.publisherDYSPUen_US
dc.subMycology and Plant Pathology
dc.subjectManagement, Pink kanker, Corticium salmonicolor, Applesen_US
dc.these.typePh.D
dc.titleStudies on epidemiology and management of pink canker (Corticium salmonicolor Berk. & Br.) in appleen_US
dc.typeThesisen_US
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