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STUDIES ON FIELD EVALUATION OF BRASSICA GERMPLASM/VARIETIES AGAINST SCLEROTINIA SCLEROTIORUM UNDER INOCULATED CONDITION

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Indian mustard, Brassica juncea belong to Brassicaceae and Centre of origin Mideterian. Sclerotinia stem rot/ blight caused by Sclerotinia sclerotiorum is one of the most important fungal diseases in rapeseed and other crops in the world. The present study was undertaken to access the forty seven germplasm/varieties to find out the resistance against S. sclerotiorum under inoculated condition. The reaction of forty-seven germplasm was evaluated in randomized complete block design with thrice replications at the experimental field, Department of Plant Pathology, College of Agriculture, Gwalior during Rabi season 2014-15 and laboratory work was done in the Department of Plant Pathology, College of Agriculture, Gwalior (M.P.). Observations for severity of stem rot on main stem were recorded after 120 days of sowing using 0 - 4 scale. (Assessment scale 0-4 where 0 = no disease (resistance), 1 = less than half stem girdled (moderate resistance), 2 = more than half stem girdled (susceptible), 3 = whole stem girdled (moderate susceptible), 4 = plant dead (highly suscepitble). Forty-seven germplasm/varieties were evaluated for their reaction against Sclerotinia blight (Sclerotinia sclerotiorum). Out of forty seven germplasm / varieties, tested two Cultivar SBG-14-5 and SBG-14- 6 gave highly resistance reactions, while twenty six varieties are found resistant SBG-14-2, SBG-14-3, SBG-14-4, SBG-14-7, SBG-14-8, SBG-14-9, SBG-14-10, SBG-14-11, SBG-14-13, SBG14-15, SBG-14-17, SBG-14-18, SBG-14-23, SBG-14-27, SBG-14-28, SBG-14-30, SBG-14-31, SBG-14-32, SBG-14-33, SBG-14-34, SBG-14-35, SBG-14-36, SBG- 14-41, SBG-14-42, NDNSR-14-76, NDNSR-14-77, twelve varieties are found susceptible SBG-14-1, SBG-14-12, SBG- 14-14, SBG-14-16, SBG-14-21, SBG-14-22, SBG-14-24, SBG-14-26, SBG-14-29, SBG-14-37, SBG-14-39, SBG-14-40 and seven varieties SBG-14-19, SBG-14-20, SBG-14-25, SBG-14-38, Varuna, Rohini and BIOYSR were found highly susceptible against Sclerotinia blight (Sclerotinia sclerotiorum).
SURYA
PRAMOD KUMAR FATEHPURIA RAJNI S. SASODE DEVASHISH R. CHOBE VEERENDRA GUPTA REETI SINGH
FLORA AND FAUNA
2019
Title: STUDIES ON FIELD EVALUATION OF BRASSICA GERMPLASM/VARIETIES AGAINST SCLEROTINIA SCLEROTIORUM UNDER INOCULATED CONDITION
Description:
Indian mustard, Brassica juncea belong to Brassicaceae and Centre of origin Mideterian.
Sclerotinia stem rot/ blight caused by Sclerotinia sclerotiorum is one of the most important fungal diseases in rapeseed and other crops in the world.
The present study was undertaken to access the forty seven germplasm/varieties to find out the resistance against S.
sclerotiorum under inoculated condition.
The reaction of forty-seven germplasm was evaluated in randomized complete block design with thrice replications at the experimental field, Department of Plant Pathology, College of Agriculture, Gwalior during Rabi season 2014-15 and laboratory work was done in the Department of Plant Pathology, College of Agriculture, Gwalior (M.
P.
).
Observations for severity of stem rot on main stem were recorded after 120 days of sowing using 0 - 4 scale.
(Assessment scale 0-4 where 0 = no disease (resistance), 1 = less than half stem girdled (moderate resistance), 2 = more than half stem girdled (susceptible), 3 = whole stem girdled (moderate susceptible), 4 = plant dead (highly suscepitble).
Forty-seven germplasm/varieties were evaluated for their reaction against Sclerotinia blight (Sclerotinia sclerotiorum).
Out of forty seven germplasm / varieties, tested two Cultivar SBG-14-5 and SBG-14- 6 gave highly resistance reactions, while twenty six varieties are found resistant SBG-14-2, SBG-14-3, SBG-14-4, SBG-14-7, SBG-14-8, SBG-14-9, SBG-14-10, SBG-14-11, SBG-14-13, SBG14-15, SBG-14-17, SBG-14-18, SBG-14-23, SBG-14-27, SBG-14-28, SBG-14-30, SBG-14-31, SBG-14-32, SBG-14-33, SBG-14-34, SBG-14-35, SBG-14-36, SBG- 14-41, SBG-14-42, NDNSR-14-76, NDNSR-14-77, twelve varieties are found susceptible SBG-14-1, SBG-14-12, SBG- 14-14, SBG-14-16, SBG-14-21, SBG-14-22, SBG-14-24, SBG-14-26, SBG-14-29, SBG-14-37, SBG-14-39, SBG-14-40 and seven varieties SBG-14-19, SBG-14-20, SBG-14-25, SBG-14-38, Varuna, Rohini and BIOYSR were found highly susceptible against Sclerotinia blight (Sclerotinia sclerotiorum).
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