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Assessment of yield losses in Brassica juncea due to downy mildew (Hyaloperonospora brassicae)

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Title Assessment of yield losses in Brassica juncea due to downy mildew (Hyaloperonospora brassicae)
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Creator Meena, P.D., Lijo Thomas and Dhiraj Singh
 
Subject Brassica juncea, Downy mildew, Hyloperonospora brassicae, yield loss
 
Description Not Available
Susceptibility of cultivated varieties of Indian mustard (Brassica juncea L.) to downy mildew (DM),
[Hyaloperonospora brassicae (Gaum.) Gçker; formerly Peronospora parasitica] is one of the major
constraints in increasing crop productivity. This study reports the effect of DM on yield of three important
Indian mustard cultivars as affected by several yield parameters. Compared to the healthy plants,
DM-infected plants reduced yield by 42.6, 46.8 and 66.7 percent in cvs. Rohini, Varuna and NRCDR-2,
respectively. DM infection significantly reduced average plant height, 1000-seed weight and oil content of
seeds. Number of primary branches per plant however, was significantly higher in infected than in healthy
plants. Generally, the number of siliquae on main shoot, as well as, on primary branches was also significantly
lower in infected than in healthy plants. Quantification of economic impact showed that the yearly expected
loss in India due to DM was about 683.1 million Indian rupees, depending upon the disease severity.
Not Available
 
Date 2018-10-30T10:12:06Z
2018-10-30T10:12:06Z
2014-01-20
 
Type Journal
 
Identifier Meena, P.D., Lijo Thomas and Dhiraj Singh. 2014. Assessment of yield losses in Brassica juncea due to downy mildew (Hyaloperonospora brassicae). J. Oilseed Brassica, 5 (1): 73-77
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http://krishi.icar.gov.in/jspui/handle/123456789/8695
 
Language English
 
Relation Not Available;
 
Publisher Society for Rapeseed-Mustard Research