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in
| Title : |
Selection of resistant genotypes of rice against blast (pyricularia grisea) and bacterial leaf blight (Xanthomonas Oryzae Pv. Oryzae) at rars, Parwanipur in 2005-2006 |
| Material Type: |
printed text |
| Authors: |
P.C.P. Chaurasia, Editor ; J.B Prasad, Author ; A Mandal, Author |
| Publication Date: |
2010 |
| Pagination: |
415-423 p. |
| Abstract: |
There were three hundred and twelve rice breeding lines/ varieties in National Rice Blast and National Bacterial Leaf Blight
Screening Nurseries at RARS Parwanipur in 2005 including twenty-one rice varieties that were received from bora rice program of
Parwanipur and repeated use of resistant and susceptible checks in ach twenty entries. The test entries were sown I transplanted in
rod -row design at 10 and 25 em spacing of rows in national blast and BLB nurseries respectively. The test entries were sown/
transplanted on 20th and 21 •July 2005 respectively of Blast and BLB nurseries. Similar~ there were three hundred and forty test rice
entries excluding repeated use of resistant and susceptible checks were seeded on 24 July 2006 in blast nursery and transplanted
on 19th July 2006 Of BLB nursery . The test entries were inoculated. with local blast and BLB inocula on 5th September and 7th
September 2006 and diseases were scored on ... 11th October 2006 respectively. The test entries were fertilized at the rate of
120:50:0 Kg NP.Kiha. 1N-l and Laxmi were used as susceptible and resistant checks in both the kind of nurseries. Blast and
Bacterial Leaf Blight diseases were scored using 0-9 scale of IRRI. In blast nursery which was scored on 12th Sept.2005, all rice
genotypes except susceptible check, Masuli (3), Sugandha 3-1 (3),Tarahara-1(3) and IR 744052-165-3-2 (2) were found free from
Pyricularia grisea infection. In national BLB screening nursery which was inoculated on l01
h Sept. 2005 with local BLB inoculum
and scored on 3111 October 2005 had fourteen rice genotypes free from bacterial leaf blight infection, two hundred and forty- eight
genotypes were rated resistant and twelve genotypes were rated moderately susceptible and only one 1N-1 was fow1d
susceptible. The genotypes of rice which were free from BLB and blast infection were WAT 316-WAS-B-Sl,RHS 392-13X-3CXOZA,
SPR85163-5-l-2-4,ITA410, BR4684-13-1-1, OR367, NR1894-10-3-2-3, BAR! DHAN-28 ,NR 10488, Tainan-1, NR10375,
YOANIAN-4, Gautam and I ~m. In blast nursery, out of three hundred forty test entries _, three hundred and twenty-one entries
were rated resistant , one entry was found moderately susceptible and one entry was found suscepttble.in 2006. In BLB nursery, out
of three hundred forty test entries three hundred and twenty -nine test entries were found resistant and eleven test entries were rated
moderately susceptible in 2006. |
| Link for e-copy: |
http://elibrary.narc.gov.np/?r=1046 |
in
Selection of resistant genotypes of rice against blast (pyricularia grisea) and bacterial leaf blight (Xanthomonas Oryzae Pv. Oryzae) at rars, Parwanipur in 2005-2006 [printed text] / P.C.P. Chaurasia, Editor ; J.B Prasad, Author ; A Mandal, Author . - 2010 . - 415-423 p. | Abstract: |
There were three hundred and twelve rice breeding lines/ varieties in National Rice Blast and National Bacterial Leaf Blight
Screening Nurseries at RARS Parwanipur in 2005 including twenty-one rice varieties that were received from bora rice program of
Parwanipur and repeated use of resistant and susceptible checks in ach twenty entries. The test entries were sown I transplanted in
rod -row design at 10 and 25 em spacing of rows in national blast and BLB nurseries respectively. The test entries were sown/
transplanted on 20th and 21 •July 2005 respectively of Blast and BLB nurseries. Similar~ there were three hundred and forty test rice
entries excluding repeated use of resistant and susceptible checks were seeded on 24 July 2006 in blast nursery and transplanted
on 19th July 2006 Of BLB nursery . The test entries were inoculated. with local blast and BLB inocula on 5th September and 7th
September 2006 and diseases were scored on ... 11th October 2006 respectively. The test entries were fertilized at the rate of
120:50:0 Kg NP.Kiha. 1N-l and Laxmi were used as susceptible and resistant checks in both the kind of nurseries. Blast and
Bacterial Leaf Blight diseases were scored using 0-9 scale of IRRI. In blast nursery which was scored on 12th Sept.2005, all rice
genotypes except susceptible check, Masuli (3), Sugandha 3-1 (3),Tarahara-1(3) and IR 744052-165-3-2 (2) were found free from
Pyricularia grisea infection. In national BLB screening nursery which was inoculated on l01
h Sept. 2005 with local BLB inoculum
and scored on 3111 October 2005 had fourteen rice genotypes free from bacterial leaf blight infection, two hundred and forty- eight
genotypes were rated resistant and twelve genotypes were rated moderately susceptible and only one 1N-1 was fow1d
susceptible. The genotypes of rice which were free from BLB and blast infection were WAT 316-WAS-B-Sl,RHS 392-13X-3CXOZA,
SPR85163-5-l-2-4,ITA410, BR4684-13-1-1, OR367, NR1894-10-3-2-3, BAR! DHAN-28 ,NR 10488, Tainan-1, NR10375,
YOANIAN-4, Gautam and I ~m. In blast nursery, out of three hundred forty test entries _, three hundred and twenty-one entries
were rated resistant , one entry was found moderately susceptible and one entry was found suscepttble.in 2006. In BLB nursery, out
of three hundred forty test entries three hundred and twenty -nine test entries were found resistant and eleven test entries were rated
moderately susceptible in 2006. |
| Link for e-copy: |
http://elibrary.narc.gov.np/?r=1046 |
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