Morphological and biochemical bases of resistance to melon fruit fly, [Bactrocera cucurbitae(Coquillett)(Diptera:Tephritidae) in Bitter gourd(Momordica charantia L.)] (Record no. 141375)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 03931nam a22001937a 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | OSt |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20220404160552.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 220404b ||||| |||| 00| 0 eng d |
| 082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER | |
| Classification number | 632.6 |
| Item number | MAN/MO |
| 100 ## - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Manju Roshni K |
| 245 ## - TITLE STATEMENT | |
| Title | Morphological and biochemical bases of resistance to melon fruit fly, [Bactrocera cucurbitae(Coquillett)(Diptera:Tephritidae) in Bitter gourd(Momordica charantia L.)] |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) | |
| Place of publication, distribution, etc. | Vellanikkara |
| Name of publisher, distributor, etc. | Department of Agricultural entomology, College of Horticulture |
| Date of publication, distribution, etc. | 2014 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 54p |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | MSc |
| 520 3# - SUMMARY, ETC. | |
| Summary, etc. | A study titled “Morphological and biochemical bases of resistance to melon fruit fly,<br/>Bactrocera cucurbitae (Coquillett) (Diptera: Tephritidae) in bitter gourd (Momordica charantia<br/>L.)” was undertaken at College of Horticulture, Vellanikkara during 2013-2014 with the<br/>objectives of evaluation of the degree of resistance to melon fruit fly in selected accessions of<br/>bitter gourd, identification of morphological and biochemical bases of resistance and assessment<br/>of the olfactory response of melon fruit flies to fruit extracts of bitter gourd accessions. <br/>A field experiment was carried out in Randomised Block Design with ten treatments and<br/>three replications at Instructional Farm, Vellanikkara. The treatments consisted of accessions<br/>Priya, Preethi, Priyanka, CO-1, VKB-136, VKB-130, VKB-196, IC-0596980, IC-0596981 and<br/>IC-0596983. The resistance of bitter gourd accessions to melon fly was evaluated in terms of per<br/>cent fruit damage and larval density. The results showed significant variation in fruit infestation<br/>among the accessions evaluated. The lowest damage of 9.13 per cent was recorded in VKB-196 <br/>followed by CO-1 at 10.17 per cent, both being on par. Four accessions, including Priya (49.08<br/>%), Priyanka (50.99 %), VKB-130 (53.14 %) and Preethi (64.56 %) recorded higher levels of<br/>infestation and were on par.<br/>Melon fly damage was found to be influenced by the fruit characters of different <br/>accessions. Correlation of infestation with fruit characters such as colour, weight, length, width,<br/>flesh thickness, spine length, spine form and spine density revealed that spine density and flesh<br/>thickness were negatively and significantly correlated with per cent fruit damage (-0.81 and-0.69<br/>respectively) and larval density (-0.74 and -0.69 respectively). VKB-196, which recorded the <br/>highest values for flesh thickness and spine density (0.52 cm and 9.83/cm<br/>, respectively)<br/>recorded the lowest incidence of 9.13 per cent while VKB- 130 with flesh thickness of 0.32cm2 and spine density of 4.81 cm2 recorded higher damage of 53.14 per cent. <br/><br/>Analysis of parameters like protein content, moisture content, peroxidase activity and <br/>polyphenol oxidase activity showed a negative and significant correlation of peroxidase activity with fruit fly infestation. <br/> Studies on olfactory responses of gravid female melon fly to fruit extracts recorded<br/>higher response to hexane fruit extract as against aqueous extract. Similarly melon flies showed<br/>greater attraction to those accessions which had recorded higher per cent damage, suggesting<br/>presence of volatile chemicals which might have mediated response of melon fly towards the<br/>accessions. <br/><br/>Based on present investigations, VKB-196 and CO-1 may be rated as highly resistant to <br/>melon fly, IC-0596983 as resistant, IC-0596981, VKB-136, IC-0596980 and Priya as moderately<br/>resistant and VKB-130, Preethi and Priyanka as susceptible. The studies also show that<br/>resistance could be mediated by fruit characters like flesh thickness, spine density and peroxidase<br/>activity. Sustained efforts could lead to development of melon fly resistant bitter gourd varieties,<br/>providing the much needed edge to melon fly management in bitter gourd. <br/><br/><br/> |
| 700 ## - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Madhu Subramanian(Guide) |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href="http://krishikosh.egranth.ac.in/handle/1/5810136139">http://krishikosh.egranth.ac.in/handle/1/5810136139</a> |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | Dewey Decimal Classification |
| Koha item type | Theses |
| Withdrawn status | Lost status | Damaged status | Not for loan | Collection code | Home library | Current library | Shelving location | Date acquired | Total Checkouts | Full call number | Barcode | Date last seen | Price effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Not For Loan | Reference Book | KAU Central Library, Thrissur | KAU Central Library, Thrissur | Theses | 09/02/2015 | 632.6 MAN/MO | 173413 | 09/02/2015 | 09/02/2015 | Theses |