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in
| Title : |
Evaluation of level of resistance in paddy genotypes against bacterial leaf blight under bhairahawa condition |
| Material Type: |
printed text |
| Authors: |
Deepak Bhandari, Editor |
| Publication Date: |
2010 |
| Pagination: |
455-459 p. |
| Abstract: |
Bacterial leaf Blight (BB) is the most destructive disease of paddy at Bhairahawa and in areas of western terai having similar weather conditions. Use of resistant genotypes is durable, cheap and widely adoptable method of plant disease management. The experiment was conducted to evaluate the level of resistance in various paddy genotypes against BLB disease and to push up the appropriate paddy genotypes for the western terai region of Nepal. Several genotypes procured from different levels of varietal experiments were tested in rod rows during the year 2005 and 2006. The tested genotypes were artificially inoculated with BLB inoculums at about 45-50 days after transplanting following Kaufmanns's clipping method The inoculwns were collected from surrounding areas of Bhairahawa. The severity of BLB was comparatively high in the year 2005 than the year 2006. Based on disease score, out of290 and 380 genotypes tested under Bhairahawa condition, 150 and 208 genotypes had some level of resistance against BLB during the year 2005 and 2006 respectively. Based on the average score of both years 25 genotypes had stable and good level of resistance against the disease. Among them, BR 4962-12-4, Barlche 2001, Masuli/MT4#69, BRRI Dhan-26, NR 1988-2-3-5, IR 7699-44-3-3-1, Judi 508# 23 and Barkhe 2045 were the best genotypes having stable and higher level of resistance against BB. The higher frequencies of genotypes under highly resistant to resistant group in both the years indicate the constructive direction of our breeding strategies against the BLB disease |
| Link for e-copy: |
http://elibrary.narc.gov.np/?r=1051 |
in
Evaluation of level of resistance in paddy genotypes against bacterial leaf blight under bhairahawa condition [printed text] / Deepak Bhandari, Editor . - 2010 . - 455-459 p. | Abstract: |
Bacterial leaf Blight (BB) is the most destructive disease of paddy at Bhairahawa and in areas of western terai having similar weather conditions. Use of resistant genotypes is durable, cheap and widely adoptable method of plant disease management. The experiment was conducted to evaluate the level of resistance in various paddy genotypes against BLB disease and to push up the appropriate paddy genotypes for the western terai region of Nepal. Several genotypes procured from different levels of varietal experiments were tested in rod rows during the year 2005 and 2006. The tested genotypes were artificially inoculated with BLB inoculums at about 45-50 days after transplanting following Kaufmanns's clipping method The inoculwns were collected from surrounding areas of Bhairahawa. The severity of BLB was comparatively high in the year 2005 than the year 2006. Based on disease score, out of290 and 380 genotypes tested under Bhairahawa condition, 150 and 208 genotypes had some level of resistance against BLB during the year 2005 and 2006 respectively. Based on the average score of both years 25 genotypes had stable and good level of resistance against the disease. Among them, BR 4962-12-4, Barlche 2001, Masuli/MT4#69, BRRI Dhan-26, NR 1988-2-3-5, IR 7699-44-3-3-1, Judi 508# 23 and Barkhe 2045 were the best genotypes having stable and higher level of resistance against BB. The higher frequencies of genotypes under highly resistant to resistant group in both the years indicate the constructive direction of our breeding strategies against the BLB disease |
| Link for e-copy: |
http://elibrary.narc.gov.np/?r=1051 |
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