Inhibitory Effects Of Certain Plant Extracts On The Incidence Of Cowpea Mosaic (Record no. 25265)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 03149nam a2200193Ia 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | OSt |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20220117140357.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 140128s9999 xx 000 0 und d |
| 082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER | |
| Classification number | 632.3 |
| Item number | MAL/IN |
| 100 ## - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Mallika Devi S |
| 245 ## - TITLE STATEMENT | |
| Title | Inhibitory Effects Of Certain Plant Extracts On The Incidence Of Cowpea Mosaic |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) | |
| Place of publication, distribution, etc. | Vellayani |
| Name of publisher, distributor, etc. | Department of Plant Pathology, College of Agriculture |
| Date of publication, distribution, etc. | 1990 |
| 502 ## - DISSERTATION NOTE | |
| Degree type | MSc |
| 520 3# - SUMMARY, ETC. | |
| Summary, etc. | The inhibitory effect of certain plant extracts on the incidence of cowpea mosaic was studied. Preliminary screening of non-host plants for antiviral property against cowpea mosaic virus revealed that extracts of sixteen plants viz. Adenocalyma allicea, Azadirachta indica, Boerhaavia diffusa, Bougainvillea spectabilis, Calotropis gigantean, Clerodendron inflortunatum, Curcuma longa, Eupatorium odoratum, Ferrula indica, Mirabilis jalapa, Moringa Olifera, Phyllanthus niruri, Polyalthia longifolia, solanum indicum, Thespesia populnea and Vitex negundo inhibited the production of local lesions on the leaves of Chenopodium amaranticolor indicating that these extracts possessed antiviral property. The extracts of A. Indica, B. diffusa, B. spectabilis, C. gigantean, C. infortunatum, C. longa, M. jalapa, P. niruri, S. indicum, and V. negundo caused 100 per cent inhibition of the production of local lesions on C. amaranticolor even at five per cent concentration. The inhibitory effect of the plant extracts was found to be less pronounced when tested on the primary leaves of cowpea seedlings. Pre - inoculation application of plant extracts was found to be more effective than post-inoculation application in checking the incidence of cowpea mosaic. In insect transmission studies with Aphis craccivora cent per cent inhibition of disease incidence was obtained with the extracts of A. indicum, C. infortunatum, P. niruri and V. negundo. Studies on the effect of plant extracts on the acquisition and transmission of cowpea mosaic virus by A. craccivora revealed that the extract of P. niruri caused 100 per cent reduction over control. Maximum inhibition of disease development was obtained in plants inoculated with cowpea mosaic virus upto two days after the application of extracts of A. indica, P. niruri, V. negundo and C. infortunatum. Extracts of V. negundo and A. indica caused considerable reduction in the survival of A. craccivora on cowpea. The present studies indicated that, the extract of C. infortunatum had some systemic effect against cowpea mosaic virus. Repeated application of plant extracts on cowpea plants revealed that V. negundo had the maximum inhibitory effect on symptom development, in both sap and insect transmission trials. Height and weight of plants, number and weight of pods and root nodules of cowpea plants treated with plant extracts were found to be more than that of the control. |
| 700 ## - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Rajagopalan B (Guide) |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | https://krishikosh.egranth.ac.in/handle/1/5810094903 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | https://krishikosh.egranth.ac.in/displaybitstream?handle=1/5810094903&fileid=af63ddc3-e254-467f-babb-3cb024d79e9d |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | |
| Koha item type | Theses |
| Withdrawn status | Lost status | Source of classification or shelving scheme | Damaged status | Not for loan | Permanent Location | Current Location | Shelving location | Date acquired | Full call number | Barcode | Date last seen | Price effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| KAU Central Library, Thrissur | KAU Central Library, Thrissur | Theses | 2014-03-18 | 632.3 MAL/IN | 170310 | 2014-03-18 | 2014-03-18 | Theses |