Potential of Rhizobacteria to control bhendi yellow vein mosaic virus in bhendi
KrishiKosh
View Archive InfoField | Value | |
Title |
Potential of Rhizobacteria to control bhendi yellow vein mosaic virus in bhendi
|
|
Creator |
Nisha.M.Patil
|
|
Contributor |
K.S.Jagadeesh
|
|
Subject |
Agricultural Microbiology
|
|
Description |
As many as fifty rhizobacterial isolates from the culture collection of Departments of Agricultural Microbiology and Biotechnology were screened against Bhendi Yellow Vein Mosaic Virus (BYVMV) disease in bhendi. Based on the disease control, five isolates were selected for further studies. Four of them (B-40, 212(1), 212(4), 205(4)) belonged to nonfluorescent Pseudomonas and one 218(1) belonged to fluorescent Pseudomonas. The above selected rhizobacterial isolates were evaluated for their ability to control BYVMV and promote growth in bhendi. These isolates controlled the disease ranging from 60 to 86.67 percent. The green house experiment revealed that Pseudomonas 218(1) was the most promising isolate which controlled BYVMV by 86.67 per cent. The mechanism of virus control was elucidated. All the isolates induced systemic resistance in bhendi plants. Plants inoculated with the lignite based formulation of fluorescent Pseudomonas 218(1) recorded the highest phenol content, peroxidase activity and PALase activity (20.83 %, 79.35 % and 47.05 % respectively higher than the diseased control). The plants treated with fluorescent Pseudomonas 218(1) also showed the highest reduction in the insect population (83.33 per cent less than that of the diseased control). Semi quantitative PCR analysis revealed lower viral load accumulation in plants inoculated with these isolates. The fluorescent Pseudomonas 218(1) recorded maximum plant height, total biomass, chlorophyll content and fruit yield. Which were increased by 46, 56, 62 and 132 per cent, respectively over the diseased control. |
|
Date |
2016-11-09T17:51:01Z
2016-11-09T17:51:01Z 2010 |
|
Type |
Thesis
|
|
Identifier |
http://krishikosh.egranth.ac.in/handle/1/84751
|
|
Format |
application/pdf
|
|
Publisher |
UAS, Dharwad
|
|