Effect of beet mosaic virus on sugar beet seed yield in greenhouse condition

Document Type : Scientific - Research

Authors

1 Plant Pests and Diseases Dept., Isfahan Agricultural Research Center

2 Tehran Univ., College of Agriculture, Iran

Abstract

In order to  study the effect of beet mosaic virus on sugarbeet seed yield, an isolate of beet mosaic virus was collected from sugarbeet fields in Karaj and biologically was purified by inoculation on Chenopodium amaranticolor and propagated on Beta vulgaris cv. Cicla under greenhouse conditions.
The infected sap was inoculated on leaves of  sugar beet  7233 variety at  two stages, after and before vernalization using a randomized complete design. with 3 treatments and 4 replication.
The results showed  that infection of plants before vernalization  had a serious losses on seed yield. Seed production was decreased 43% as compared with healthy plants (Checks) and showed significant differences with the control. Also, stem length of the infected plants were 33.2% shorter than healthy plants  as significant  differences  with the control.
Infection of the plants after vernalization  had  no  significant differences with the control and  yield  losses were about 7%.

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