dc.contributor.author |
Joseph, P J |
|
dc.contributor.author |
Ramanatha Menon, M |
|
dc.date.accessioned |
2019-04-08T10:52:33Z |
|
dc.date.available |
2019-04-08T10:52:33Z |
|
dc.date.issued |
1978 |
|
dc.identifier.citation |
Agricultural Research Journal of Kerala, 16(2), 148-154. |
en_US |
dc.identifier.uri |
http://hdl.handle.net/123456789/4534 |
|
dc.description.abstract |
The symptom of snake gourd mosaic disease manifested as mosaic
pattern with dark green raised blisters on the leaf lamina. The size of leaves severely reduced ; internodes shortened and the growth of the plant is retarded.
The infected plants blossom sparingly and set few fruits. The virus is sap and
insect transmissible; both Aphis gossypii and A cracdvora transmitted the virus.
Studies on the vector-virus relationships with A. cracdvora showed that the
vector could acquire the virus with 5 minutes acquisiton feeding and transmit
it with 5 minutes feeding on a healthy test plant. A minimum of 5 aphids are
required for transmission and pre-acquisition starvation increased the efficiency
whereas pre-infection starvation beyond 30 minutes ^uucod it. The vector could
met retain the virus for long periods and the relationship was of non-persistent
nature. The physical properties of the virus are: T.!. P. of 70 -75°C, D.E.P. ,of
1 '.5000-1 :1 0000, longevity in vitro of 72-96 hours at room temperature and
144—168 hours at "lOt). Eight species of plants in 3 families ^c susceptible to
infection by the virus. Based on the above characteristics, the virus causing
mosaic disease of snake gourd in Kerala is identified as a strain of ucumis virus 1 . |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
Kerala Agricultural University |
en_US |
dc.subject |
Snake gourd |
en_US |
dc.subject |
snake gourd-mosaic disease |
en_US |
dc.subject |
snake gourd mosaic virus-physical properties |
en_US |
dc.title |
Studies on the mosaic disease of snake gourd (Trichosanthes Anguina L.) |
en_US |
dc.type |
Article |
en_US |