Search results
2 result(s) search for keyword(s) 'prevalance'
Bacterial leaf blight of rice in mid and farwestern Nepal: Preliminary study of disease prevalance in farmers field / Ram Bahadur Khadka
in Proceedings of the 27th National Summer Crops Workshop, held at Rampur, Chitawan, 18-20 April 2013, Vol. I / Giri, Y.P.
Title : Bacterial leaf blight of rice in mid and farwestern Nepal: Preliminary study of disease prevalance in farmers field Material Type: printed text Authors: Ram Bahadur Khadka ; Sharad Adhikari, Author ; Gopi Shrestha, Author Pagination: 298-302 p. Languages : English (eng) Keywords: Leaf Blight ; Disease Prevalance Abstract: Bacterial leaf blight is one of the major constraints for rice production in mid and far-western
Nepal. Tn case of high intensity, it may cause significant loss in the yield of rice. There is little
knowledge about the diversity, pathogenicity and epidemiology of bacterial leaf blight ofrice
i.n the regions. A sampling and disease survey were undertaken to identify the incidence of
bacterial leaf blight in farmer's field in Banke, Bardiya, Dang and Kail ali districts in main rice
growing season of2012. According to survey result, Bindeshowari, Local manshuli, Indrasan ,
Kalanamak and Sarju # 52 varieties of rice had remarkably higher disease incidence (42.5,
34.66, 85, 65. 73.75%, respectively) at Narayanpur, Dang; Mainpokhar and Beluwa of
Bardiya; Khurd Khajura, Banke and Chuba, Manuwa, Partapur and Janakinagar of Kailali
district, respectively. Low disease incidence (3.66 and 11 .83%, respectively) were observed in
Sabitri and Radha4 varieties of rice at Mainapokhar, Motipur, Kalika and Beluwa of Baridya
district; Urhari and Narayanpur of Dang; Makawanpur, Radha 4 and Sabitri varieties at
Rajapur, Bardiya, Sukha Dhan 1 and Sukha Dhan 2 at Khurd Kahjura Banke. The survey
reveal ed that there is very low awareness among farmers about impact of bacterial leaf blight
disease in rice production. Among the surveyed areas only farmers of Narayanpur, Dang;
Beluwa, Bardiya; and Rainiyapur, Banke district were found to be more serious to disease
management whereas at other places the farmers did not show any interest to disease
management. The results obtained in this initial study shows potential research scope and
future research thrust on bacterial leaf blight management in mid and far western Nepal.Link for e-copy: http://elibrary.narc.gov.np/?r=915 Bacterial leaf blight of rice in mid and farwestern Nepal: Preliminary study of disease prevalance in farmers field [printed text] / Ram Bahadur Khadka ; Sharad Adhikari, Author ; Gopi Shrestha, Author . - [s.d.] . - 298-302 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: Leaf Blight ; Disease Prevalance Abstract: Bacterial leaf blight is one of the major constraints for rice production in mid and far-western
Nepal. Tn case of high intensity, it may cause significant loss in the yield of rice. There is little
knowledge about the diversity, pathogenicity and epidemiology of bacterial leaf blight ofrice
i.n the regions. A sampling and disease survey were undertaken to identify the incidence of
bacterial leaf blight in farmer's field in Banke, Bardiya, Dang and Kail ali districts in main rice
growing season of2012. According to survey result, Bindeshowari, Local manshuli, Indrasan ,
Kalanamak and Sarju # 52 varieties of rice had remarkably higher disease incidence (42.5,
34.66, 85, 65. 73.75%, respectively) at Narayanpur, Dang; Mainpokhar and Beluwa of
Bardiya; Khurd Khajura, Banke and Chuba, Manuwa, Partapur and Janakinagar of Kailali
district, respectively. Low disease incidence (3.66 and 11 .83%, respectively) were observed in
Sabitri and Radha4 varieties of rice at Mainapokhar, Motipur, Kalika and Beluwa of Baridya
district; Urhari and Narayanpur of Dang; Makawanpur, Radha 4 and Sabitri varieties at
Rajapur, Bardiya, Sukha Dhan 1 and Sukha Dhan 2 at Khurd Kahjura Banke. The survey
reveal ed that there is very low awareness among farmers about impact of bacterial leaf blight
disease in rice production. Among the surveyed areas only farmers of Narayanpur, Dang;
Beluwa, Bardiya; and Rainiyapur, Banke district were found to be more serious to disease
management whereas at other places the farmers did not show any interest to disease
management. The results obtained in this initial study shows potential research scope and
future research thrust on bacterial leaf blight management in mid and far western Nepal.Link for e-copy: http://elibrary.narc.gov.np/?r=915 E-copies
http://nkcs.org.np/narc/dl/?r=915URL
in Rice research in Nepal : Proceedings of 24th National Summer Crops Research Workshop, Khumaltar, Lalitpur, 30-31 June 2004 / Adhikari, N.P.
Title : Status of sheath blight disease of rice in central terai of Nepal Material Type: printed text Authors: DB Gharti ; J.B Sah, Author ; Shrestha, C.L., Author ; Khadge, B.R., Author Pagination: 353-362 p. Languages : English (eng) Keywords: Thanatephorus cucumeris ; rice sheath blight prevalance yield loss genetic resistance Abstract: This study consisted of field survey, yield loss assessment and disease screening nursery
undertaken at RARS, Parwanipur and its command area during 2001102 and 2002103 with a ·
view to know the status of sheath blight disease of rice in Central Terai of Nepal and plan
future research programs accordingly. Survey in few command districts revealed sheath
blight prevalence in 75. 7% surveyed fields. Farmers reported almost 28% yield loss due to
this disease in susceptible farmer adopted rice variety "Sona Masuli" However, yield loss
assessment at the research station showed 9. 44% yield loss in this particular variety. Yield
losses varied between 4. 77 to 9.44% in different varieties. However, yield differences
between sprayed and non- sprayed plots were non significant. Relative lesion height was
significantly different among the tested genotypes and between the spray treatments as well.
Sheath Blight Screening Nursery conducted during 2001102 and 2002103 indicated NR 1769- -
20-2-2-3-4 as resistant genotype to rice sheath blight. Genotypes/varieties like Pusa 834, NR
1558-76-1-1-2-3-1-2-3, FRX 29F3B-5F6BF7, FRX 29F5B-5F6BF8, Sabitri, Radha-11,
Jaya, NR 1743-1-2-4-1-2-2, BR 802-78-2-1, NR 1736-4-6-2-1-1-1 were found moderately
resistant over years.Link for e-copy: http://elibrary.narc.gov.np/?r=1123 Status of sheath blight disease of rice in central terai of Nepal [printed text] / DB Gharti ; J.B Sah, Author ; Shrestha, C.L., Author ; Khadge, B.R., Author . - [s.d.] . - 353-362 p.
in Rice research in Nepal : Proceedings of 24th National Summer Crops Research Workshop, Khumaltar, Lalitpur, 30-31 June 2004 / Adhikari, N.P.
Languages : English (eng)
Keywords: Thanatephorus cucumeris ; rice sheath blight prevalance yield loss genetic resistance Abstract: This study consisted of field survey, yield loss assessment and disease screening nursery
undertaken at RARS, Parwanipur and its command area during 2001102 and 2002103 with a ·
view to know the status of sheath blight disease of rice in Central Terai of Nepal and plan
future research programs accordingly. Survey in few command districts revealed sheath
blight prevalence in 75. 7% surveyed fields. Farmers reported almost 28% yield loss due to
this disease in susceptible farmer adopted rice variety "Sona Masuli" However, yield loss
assessment at the research station showed 9. 44% yield loss in this particular variety. Yield
losses varied between 4. 77 to 9.44% in different varieties. However, yield differences
between sprayed and non- sprayed plots were non significant. Relative lesion height was
significantly different among the tested genotypes and between the spray treatments as well.
Sheath Blight Screening Nursery conducted during 2001102 and 2002103 indicated NR 1769- -
20-2-2-3-4 as resistant genotype to rice sheath blight. Genotypes/varieties like Pusa 834, NR
1558-76-1-1-2-3-1-2-3, FRX 29F3B-5F6BF7, FRX 29F5B-5F6BF8, Sabitri, Radha-11,
Jaya, NR 1743-1-2-4-1-2-2, BR 802-78-2-1, NR 1736-4-6-2-1-1-1 were found moderately
resistant over years.Link for e-copy: http://elibrary.narc.gov.np/?r=1123 E-copies
http://nkcs.org.np/narc/dl/?r=1123URL