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http://krishi.icar.gov.in/jspui/handle/123456789/1770| Title: | Identification of nematode resistant gene sources against root-lesion nematode (Pratylenchuscoffeae) in banana. |
| Authors: | Sundararaju P. |
| Published/ Complete Date: | 2010-05-01 |
| Keywords: | Banana germplasm, Pratylenchus coffeae, tolerance, resistance, susceptible |
| Publisher: | Indian Journals.com |
| Abstract/Description: | An experiment was conducted in pots under green house condition during 2003-04 to evaluate for tolerance/resistance in banana varieties against root-lesion nematode. Among 72 Musa germplasms screened against root-lesion nematode, cvs. Singhlal, Sakkarachayna, Malai Kali, Manik Champa, Madavazhai, Kartobiumtham and Marabale were found resistant to Pratylenchus coffeae, whereas cvs. Chakia, ReDia, Ratisa local, Dudh Sagar, Rersian, Karibale, Kechulepa, Rajapuri India, Raidi Chinna, Wather, Chakkara Kannan, Yenagu Rontha, Kachkel, Soniyal and Ambeli were found moderately resistant to root-lesion nematode. It is interesting to note that the cultivars Kothia, Gragric Sarpara, Elavalai, Myndoli and Virupakshi though recorded high root-lesion indices and nematode populations, the reaction of plant growth parameters was minimal which proved that they posses a high degree of tolerance to P. coffeae. The remaining 43 varieties were found susceptible to P. coffeae, of which nine varieties were exhibited highly susceptible to P. coffeae. |
| Description: | The root-lesion nematode, Pratylenchus coffeae considered to be the economically important nematode pests of banana is widely distributed in South India (Sundararaju, 1996). Crop losses caused by nematodes to banana are very high, with an average annual yield losses estimated at about 20% worldwide (Sasser & Freckman, 1987). Crop losses caused due to P.coffeae in cv.Nendran was reported as 44.4% (Sundararaju & Cannayane, 2003). These nematodes can be controlled with the chemicals, but they may have adverse environmental effects and the use of nematicides is too expensive dangerous for subsistence farmers. Breeding for host plant resistance is a promising strategy for controlling nematodes (Speijer & De Waele, 1997). Since the root-lesion nematode has been well documented to cause considerable yield losses to banana, the present study was undertaken to evaluate 72 banana germplasms in pots under greenhouse conditions for locating the resistant/tolerant reaction to root-lesion nematode. |
| Gov't Doc #: | 0974-4444 (Online) |
| ISSN: | 0303-6960 (Print) |
| Type(s) of content: | Research Paper |
| Language: | English |
| Name of Journal: | Indian Journal of Nematology |
| NAAS Rating: | 5.23 |
| Volume No.: | 40(1) |
| Page Number: | 48-54 |
| Name of the Division/Regional Station: | Nematology |
| Source, DOI or any other URL: | http://www.indianjournals.com/ijor.aspx?target=ijor:ijn&volume=40&issue=1&article=007&type=pdf |
| URI: | http://krishi.icar.gov.in/jspui/handle/123456789/1770 |
| Appears in Collections: | HS-NRCB-Publication |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| ijn-40-1-007.pdf | 70.66 kB | Adobe PDF | View/Open |
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