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Title : Annual report 2067/068(2010/11) Material Type: printed text Authors: Surya Narayan Sah, Author ; Ram Baran Yadav, Author Publisher: NARC Publication Date: 2013 Pagination: viii,107 p Languages : English (eng) Keywords: Agriculture-Research Class number: NR4507 Annual report 2067/068(2010/11) [printed text] / Surya Narayan Sah, Author ; Ram Baran Yadav, Author . - [S.l.] : NARC, 2013 . - viii,107 p.
Languages : English (eng)
Keywords: Agriculture-Research Class number: NR4507
in Proceedings of the 27th National Summer Crops Workshop, held at Rampur, Chitawan, 18-20 April 2013, Vol. I / Giri, Y.P.
Title : Development of rice varieties for spring season in Nepal Material Type: printed text Authors: Dil Raj Yadav ; Ram Baran Yadaw ; Surya Narayan Sah ; Umesh Sah Pagination: 75-81 p. Languages : English (eng) Keywords: spring season ; rice genotypes grain yield Abstract: Evaluation of various rice genotypes were tested in a series of trials viz., observation nursery,
initial evaluation, coordinated varietal and coordinated farmers' field trials in the spring
season of 2009 and 20 I Oto identify the suitable rice varieties for spring season. In national
spring rice observation nursery a total of 31 and 36 genotypes were tested in 2009 and 20 I 0,
respectively. Among the tested genotypes, ADRON-117, OM 5796, OM 5939, IR 72944-1-2-
2, BAGHIXIAN, OM 2008, PSBRC, IR 79538-1-1-1-1, OM 6035, PSBRC 50, IR 68305-18-
1-1, OM 2395, OM 5625, lR 72176-307-4-2-2-3, IR 7925-4-65-1-3-2, SILUGONGGO, CT
15675-7-1-4-3-1-M, OM 7938, TR 72892-77-2-2-2, OM 4900, KAWMAS and IR 18154-5-9-
2-1-3-2 were found superior with respect grain yield. Similarly, 24 genotypes tested in initial
evaluation trials of both the years, all the observed traits were found highly significant
different among genotypes in both the years except plant height, effective tillers/m2 and
number of unfilled grains/panicle in 2009. The genotypes OM 3536 (4475 kg/ha), PSBRC 28
(4332 kg/ba), lET 1771 (4557 kg/ha), WAS-57-B-B-17-3-3-1 (4167 kg/ha), OM 1490 (4475
kg/ha) were higher grain yielder in 2009 and IR 73730-33-2-32 (4050 kglha), RR-232-1-
1(3917 kglha), WAS 57-B-B-17-3-3-1(3722kg/ha), ZHON Goo-126(3666kglha), OM-1055
(3760kg/ha) produced higher grain yield in comparison to other tested genotypes in 2010. ln
coordinated varietal trials higher grain yielding genotypes were Kachorwa Dhan-4 (4120
kg/ha), IR 73730-33-2-32 (4050 kg/ha), JET 3137 (4045 kg/ha), OM 1055 (3941 kg/ha) and
OMC 96 (3938 kg/ha). In coordinated farmers' field trials the genotypes IR51656-2K, NR274,
Kachorwa Dhan 4, OMC-96 and OM I 055 performed better than the others.Link for e-copy: http://elibrary.narc.gov.np/?r=866 Development of rice varieties for spring season in Nepal [printed text] / Dil Raj Yadav ; Ram Baran Yadaw ; Surya Narayan Sah ; Umesh Sah . - [s.d.] . - 75-81 p.
in Proceedings of the 27th National Summer Crops Workshop, held at Rampur, Chitawan, 18-20 April 2013, Vol. I / Giri, Y.P.
Languages : English (eng)
Keywords: spring season ; rice genotypes grain yield Abstract: Evaluation of various rice genotypes were tested in a series of trials viz., observation nursery,
initial evaluation, coordinated varietal and coordinated farmers' field trials in the spring
season of 2009 and 20 I Oto identify the suitable rice varieties for spring season. In national
spring rice observation nursery a total of 31 and 36 genotypes were tested in 2009 and 20 I 0,
respectively. Among the tested genotypes, ADRON-117, OM 5796, OM 5939, IR 72944-1-2-
2, BAGHIXIAN, OM 2008, PSBRC, IR 79538-1-1-1-1, OM 6035, PSBRC 50, IR 68305-18-
1-1, OM 2395, OM 5625, lR 72176-307-4-2-2-3, IR 7925-4-65-1-3-2, SILUGONGGO, CT
15675-7-1-4-3-1-M, OM 7938, TR 72892-77-2-2-2, OM 4900, KAWMAS and IR 18154-5-9-
2-1-3-2 were found superior with respect grain yield. Similarly, 24 genotypes tested in initial
evaluation trials of both the years, all the observed traits were found highly significant
different among genotypes in both the years except plant height, effective tillers/m2 and
number of unfilled grains/panicle in 2009. The genotypes OM 3536 (4475 kg/ha), PSBRC 28
(4332 kg/ba), lET 1771 (4557 kg/ha), WAS-57-B-B-17-3-3-1 (4167 kg/ha), OM 1490 (4475
kg/ha) were higher grain yielder in 2009 and IR 73730-33-2-32 (4050 kglha), RR-232-1-
1(3917 kglha), WAS 57-B-B-17-3-3-1(3722kg/ha), ZHON Goo-126(3666kglha), OM-1055
(3760kg/ha) produced higher grain yield in comparison to other tested genotypes in 2010. ln
coordinated varietal trials higher grain yielding genotypes were Kachorwa Dhan-4 (4120
kg/ha), IR 73730-33-2-32 (4050 kg/ha), JET 3137 (4045 kg/ha), OM 1055 (3941 kg/ha) and
OMC 96 (3938 kg/ha). In coordinated farmers' field trials the genotypes IR51656-2K, NR274,
Kachorwa Dhan 4, OMC-96 and OM I 055 performed better than the others.Link for e-copy: http://elibrary.narc.gov.np/?r=866 E-copies
http://nkcs.org.np/narc/dl/?r=866URL
in Proceedings of the 27th National Summer Crops Workshop, held at Rampur, Chitawan, 18-20 April 2013, Vol. I / Giri, Y.P.
Title : Evaluation of rice genotypes against bacterial leaf blight and blast Material Type: printed text Authors: Purushottam Jha ; Surya Narayan Sah, Author ; Ram Baran Yadaw, Author ; Ram Baran Yadav, Author ; Anand Mandal, Author ; Dev Kumar Saphi, Author Pagination: 281-291 p. Languages : English (eng) Keywords: BLB Resistant Moderately resistant ; Susceptible and highly susceptible Abstract: A total of 354 rice lines in 2009 and 261 lines in 20 I 0 with a diverse genetic background were
evaluated for resistance to bacterial leaf blight over locations. Disease severity ranged from 0
to 9 in both the years. Bacterial leaf blight reactions in different genotypes were differed in
locations. During 2009, 263 genotypes were scored resistant (R) and 90 genotypes moderately
resistant (MR) and one susceptible at Parwanipur. Similarly, 244 genotypes were scored
resistant, 129 moderately resistant, one lines highly susceptible at Hardinath. Likewise, 193
genotypes scored resistant, Ill moderately resistant 39 were susceptible at Bhairahawa.
During 2010,107 genotypes scored resistant, 122 moderately resistant (MR), 33 lines
moderately susceptible (MS) and 2 lines susceptible at Hardinath. Similarly, in 20 I 0, 159
lines scored resistant, 50 moderately resistant (MR) and 23 moderately susceptible at
Parwanipur. This showed that there was prevalence of variable pathotypes over locations and
thus, genotypes need to be tested over locations to identify donor parents and resistant
genotypes for recommendation. Similarly, A total of 242 rice lines in 2009 and 261 lines in
20 I 0 with a diverse genetic background were evaluated for resistance to blast disease over
locations. Disease severity ranged from 0 to 9 in both the years. Blast reactions in genotypes
were differed in all locations. During 2009, 242 genotypes were scored immune, 27 resistant
(R) and 28 genotypes moderately resistant (MR), at Parwanipur. Similarly, 2 genotypes were
scored as 2 immune, 217 resistant, 9 moderately resistant, 7 highly susceptible at Nawalpur.
Likewise, genotypes were found as 78 resistant, 97 moderately resistant, 36 susceptible at
Hardinath. During 20 I 0, genotypes were found as 33resistant, 151 moderately resistant, 56
lines moderately susceptible (MS) and 9 lines susceptible at Hardinath. Similarly in 20 I 0, 261
lines scored resistant, I moderately resistant and 2 highly susceptible at Parwanipur. This
showed that there was prevalence of variable pathotypes over locations and thus, genotypes
need to be tested over locations to identify donor parents and resistant genotypes for
recommendation.Link for e-copy: http://elibrary.narc.gov.np/?r=913 Evaluation of rice genotypes against bacterial leaf blight and blast [printed text] / Purushottam Jha ; Surya Narayan Sah, Author ; Ram Baran Yadaw, Author ; Ram Baran Yadav, Author ; Anand Mandal, Author ; Dev Kumar Saphi, Author . - [s.d.] . - 281-291 p.
in Proceedings of the 27th National Summer Crops Workshop, held at Rampur, Chitawan, 18-20 April 2013, Vol. I / Giri, Y.P.
Languages : English (eng)
Keywords: BLB Resistant Moderately resistant ; Susceptible and highly susceptible Abstract: A total of 354 rice lines in 2009 and 261 lines in 20 I 0 with a diverse genetic background were
evaluated for resistance to bacterial leaf blight over locations. Disease severity ranged from 0
to 9 in both the years. Bacterial leaf blight reactions in different genotypes were differed in
locations. During 2009, 263 genotypes were scored resistant (R) and 90 genotypes moderately
resistant (MR) and one susceptible at Parwanipur. Similarly, 244 genotypes were scored
resistant, 129 moderately resistant, one lines highly susceptible at Hardinath. Likewise, 193
genotypes scored resistant, Ill moderately resistant 39 were susceptible at Bhairahawa.
During 2010,107 genotypes scored resistant, 122 moderately resistant (MR), 33 lines
moderately susceptible (MS) and 2 lines susceptible at Hardinath. Similarly, in 20 I 0, 159
lines scored resistant, 50 moderately resistant (MR) and 23 moderately susceptible at
Parwanipur. This showed that there was prevalence of variable pathotypes over locations and
thus, genotypes need to be tested over locations to identify donor parents and resistant
genotypes for recommendation. Similarly, A total of 242 rice lines in 2009 and 261 lines in
20 I 0 with a diverse genetic background were evaluated for resistance to blast disease over
locations. Disease severity ranged from 0 to 9 in both the years. Blast reactions in genotypes
were differed in all locations. During 2009, 242 genotypes were scored immune, 27 resistant
(R) and 28 genotypes moderately resistant (MR), at Parwanipur. Similarly, 2 genotypes were
scored as 2 immune, 217 resistant, 9 moderately resistant, 7 highly susceptible at Nawalpur.
Likewise, genotypes were found as 78 resistant, 97 moderately resistant, 36 susceptible at
Hardinath. During 20 I 0, genotypes were found as 33resistant, 151 moderately resistant, 56
lines moderately susceptible (MS) and 9 lines susceptible at Hardinath. Similarly in 20 I 0, 261
lines scored resistant, I moderately resistant and 2 highly susceptible at Parwanipur. This
showed that there was prevalence of variable pathotypes over locations and thus, genotypes
need to be tested over locations to identify donor parents and resistant genotypes for
recommendation.Link for e-copy: http://elibrary.narc.gov.np/?r=913 E-copies
http://nkcs.org.np/narc/dl/?r=913URLEvaluation of rice genotypes in winter season at national rice research program, Hardinath / Dil Raj Yadav
in Proceedings of the 27th National Summer Crops Workshop, held at Rampur, Chitawan, 18-20 April 2013, Vol. I / Giri, Y.P.
Title : Evaluation of rice genotypes in winter season at national rice research program, Hardinath Material Type: printed text Authors: Dil Raj Yadav ; Ram Baran Yadaw, Author ; Surya Narayan Sah, Author ; Umesh Sah, Author ; Parmananda Sharma, Author ; Dilip Sah, Author Pagination: 169-171 p. Languages : English (eng) Keywords: Boro season ; rice genotypes grain yield Abstract: In order to find out high grain yielding with good quality rice genotypes for winter season; 20
and 22 rice genotypes were evaluated in the boro season of 2009 and 20 I 0 at National Rice
Research Program, Hardinath, Dhanusha. The significantly higher grain yielding genotypes in
2009 were IR72102-3-135-1-l-l (4073 kglha), IR62037-93-1 (3905 kglha) and IR72892-77-
2-2-2 (3900 kglha) . The statistical analysis showed highly significant differences among
genotypes in all observed traits except effective tillers/m2 in 20 I 0. In 2010, the genotypes IR
47686-9-1-B-1 (5282 kg/ha)) and IR 72904-135-1-3-2 ( 4500 kg/ha) produced significantly
higher grain yield than the other tested genotypes. The maturity period of these two genotypes
was 194 and 188 days, respectively which were at par with the checks (Jaya and Radha-4).Link for e-copy: http://elibrary.narc.gov.np/?r=884 Evaluation of rice genotypes in winter season at national rice research program, Hardinath [printed text] / Dil Raj Yadav ; Ram Baran Yadaw, Author ; Surya Narayan Sah, Author ; Umesh Sah, Author ; Parmananda Sharma, Author ; Dilip Sah, Author . - [s.d.] . - 169-171 p.
in Proceedings of the 27th National Summer Crops Workshop, held at Rampur, Chitawan, 18-20 April 2013, Vol. I / Giri, Y.P.
Languages : English (eng)
Keywords: Boro season ; rice genotypes grain yield Abstract: In order to find out high grain yielding with good quality rice genotypes for winter season; 20
and 22 rice genotypes were evaluated in the boro season of 2009 and 20 I 0 at National Rice
Research Program, Hardinath, Dhanusha. The significantly higher grain yielding genotypes in
2009 were IR72102-3-135-1-l-l (4073 kglha), IR62037-93-1 (3905 kglha) and IR72892-77-
2-2-2 (3900 kglha) . The statistical analysis showed highly significant differences among
genotypes in all observed traits except effective tillers/m2 in 20 I 0. In 2010, the genotypes IR
47686-9-1-B-1 (5282 kg/ha)) and IR 72904-135-1-3-2 ( 4500 kg/ha) produced significantly
higher grain yield than the other tested genotypes. The maturity period of these two genotypes
was 194 and 188 days, respectively which were at par with the checks (Jaya and Radha-4).Link for e-copy: http://elibrary.narc.gov.np/?r=884 E-copies
http://nkcs.org.np/narc/dl/?r=884URL
in Proceedings of the 27th National Summer Crops Workshop, held at Rampur, Chitawan, 18-20 April 2013, Vol. I / Giri, Y.P.
Title : Performance of IRRI bred rice hybrids and future strategy for development of hybrid rice in Nepal Material Type: printed text Authors: Shambhu Prasad Khatiwada ; Surya Narayan Sah ; Ram Baran Yadaw ; Umesh Sah ; Joshi, Bal K. Pagination: 1-8 p. Languages : English (eng) Keywords: Hybrid rice ; CMS lines strategies; grain yield Abstract: Cultivation of inbred rice varieties is not sufficient to meet the food demand of ever
increasing population of the country. National Rice Research Program, Hardinath evaluated
IRRJ bred rice hybrids through INGER networks in 2004, 2005 and 2012 for identifying high
yielding suitable rice hybrids in the country. The field experiments were conducted in
augmented design, consisting of 31 hybrids and eight checks, replicated five times in 2004,
and 63 hybrids and eight checks, replicated thrice in 2005. In 2012, it was conducted in RCB
design with three replications having 25 hybrids and three check varieties. Grain yield
difference was statistically significant among the hybrids in 2004 but it was not significant in
2005 and 2012. However, remarkable high yielding hybrids were identified each year
compared to checks. In 2004, I I genotypes produced higher yield than Sabitri (4.4 tfha) on
the basis of yield of Sabitri plus standard error of the mean (>4.4 t+0.88) but six hybrids
showed >30 % higher yield than Sabitri i.e. IR80786H and IR79140H by 34%, IR79168H,
IR80633H and TR8078 I H by 36.4% and TR80634H by 50% . Based on the yield plus the
standard error of the mean (5 .2 t+0.88) only IR80634H produced the higher grain yield than
international check IR75207H (5 .2tfha). ln 2005, highest yielding genotypes were IR80635H,
IR81962H, TR80627H and IR81247H that produced the grain yield of 5.7 t/ha, 5.7 tfha, 5.4
tfha and 5.1 tfha, respectively and these three superior yields were in order of 42.5%, 35% and
27.5% higher to the yield of Sabitri. Similarly, in 2012 four hybrids that produced the grain
yield >5.0 tfha were IR90872H (5 .6tfha), IR82391 H (5 .3 tfha), IR82366H (5.1 tfha) and
IRRII67 (5.1 tfha) which were 43 .6%, 35.9% and 30.1% higher to Sabitri (3.9 tfha). These
high yielding hybrids had other desirable agronomic traits to fit in prevailing rice cropping
system. Nepal has recently received the membership to international hybrid rice consortium to
strengthen hybrid rice research in the cotmtry and NARC is eligible to get support for
advancing hybrid rice research from IRRI. NRRP-NARC has formulated the short and long
term strategies for hybrid rice research and development. The short term strategy includes the
identification of introduced hybrids and introduction of their A, B and R lines, while the long
term strategy considers the development of A, B and R lines from own germplasm. In
addition to IRRI, NARC is also looking forward for collaboration with Chinese Government
for hybrid rice development in the country.Link for e-copy: http://elibrary.narc.gov.np/?r=852 Performance of IRRI bred rice hybrids and future strategy for development of hybrid rice in Nepal [printed text] / Shambhu Prasad Khatiwada ; Surya Narayan Sah ; Ram Baran Yadaw ; Umesh Sah ; Joshi, Bal K. . - [s.d.] . - 1-8 p.
in Proceedings of the 27th National Summer Crops Workshop, held at Rampur, Chitawan, 18-20 April 2013, Vol. I / Giri, Y.P.
Languages : English (eng)
Keywords: Hybrid rice ; CMS lines strategies; grain yield Abstract: Cultivation of inbred rice varieties is not sufficient to meet the food demand of ever
increasing population of the country. National Rice Research Program, Hardinath evaluated
IRRJ bred rice hybrids through INGER networks in 2004, 2005 and 2012 for identifying high
yielding suitable rice hybrids in the country. The field experiments were conducted in
augmented design, consisting of 31 hybrids and eight checks, replicated five times in 2004,
and 63 hybrids and eight checks, replicated thrice in 2005. In 2012, it was conducted in RCB
design with three replications having 25 hybrids and three check varieties. Grain yield
difference was statistically significant among the hybrids in 2004 but it was not significant in
2005 and 2012. However, remarkable high yielding hybrids were identified each year
compared to checks. In 2004, I I genotypes produced higher yield than Sabitri (4.4 tfha) on
the basis of yield of Sabitri plus standard error of the mean (>4.4 t+0.88) but six hybrids
showed >30 % higher yield than Sabitri i.e. IR80786H and IR79140H by 34%, IR79168H,
IR80633H and TR8078 I H by 36.4% and TR80634H by 50% . Based on the yield plus the
standard error of the mean (5 .2 t+0.88) only IR80634H produced the higher grain yield than
international check IR75207H (5 .2tfha). ln 2005, highest yielding genotypes were IR80635H,
IR81962H, TR80627H and IR81247H that produced the grain yield of 5.7 t/ha, 5.7 tfha, 5.4
tfha and 5.1 tfha, respectively and these three superior yields were in order of 42.5%, 35% and
27.5% higher to the yield of Sabitri. Similarly, in 2012 four hybrids that produced the grain
yield >5.0 tfha were IR90872H (5 .6tfha), IR82391 H (5 .3 tfha), IR82366H (5.1 tfha) and
IRRII67 (5.1 tfha) which were 43 .6%, 35.9% and 30.1% higher to Sabitri (3.9 tfha). These
high yielding hybrids had other desirable agronomic traits to fit in prevailing rice cropping
system. Nepal has recently received the membership to international hybrid rice consortium to
strengthen hybrid rice research in the cotmtry and NARC is eligible to get support for
advancing hybrid rice research from IRRI. NRRP-NARC has formulated the short and long
term strategies for hybrid rice research and development. The short term strategy includes the
identification of introduced hybrids and introduction of their A, B and R lines, while the long
term strategy considers the development of A, B and R lines from own germplasm. In
addition to IRRI, NARC is also looking forward for collaboration with Chinese Government
for hybrid rice development in the country.Link for e-copy: http://elibrary.narc.gov.np/?r=852 E-copies
http://nkcs.org.np/narc/dl/?r=852URL
