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6 result(s) search for keyword(s) 'resistance,'
Antibiotic Resistance: A Concern to Veterinary and Human Medicine / Aryal, S.R. in Nepal Agriculture Research Journal, Vol. 4 (2000/2001)
[article]
Title : Antibiotic Resistance: A Concern to Veterinary and Human Medicine Material Type: printed text Authors: Aryal, S.R., Author Publication Date: 2000 Article on page: 66-70 p General note: Review article Languages : English (eng) Keywords: Antibiotic resistance, bacteria, extrachromosomal material, R-plasmids Abstract: Bacterial resistance to antibiotics occurs even without the use of antibiotics. Antibiotic use exerts a
selective pressure to the bacterial flora that help in the emergence and development of antibiotic
resistance. Antibiotics are used worldwide both in veterinary and human medicine. The wide
spread use of antibiotics in human and animal has raised the concern about the development of
resistant and multi resistant bacteria that possess a potential danger to animals and men, as
resistance may cause treatment failure. Resistance may be natural or acquired. Acquired resistance
is due to transfer of extrachromosomal genetic material (R-plasmids) and is very important. The
R-plasmids are spread to other bacterial cells by transformation, transduction, conjugation and
transposition. Transmitted antibiotic resistance in disease causing bacteria may cause zoonotic
infections and resistant non-infectious bacteria may serve as a reservoir of R- plasmids for the
pathogenic organism(s). This paper highlights the mechanism of development of resistance in
bacteria and means to minimize it.Link for e-copy: http://elibrary.narc.gov.np/?r=97
in Nepal Agriculture Research Journal > Vol. 4 (2000/2001) . - 66-70 p[article] Antibiotic Resistance: A Concern to Veterinary and Human Medicine [printed text] / Aryal, S.R., Author . - 2000 . - 66-70 p.
Review article
Languages : English (eng)
in Nepal Agriculture Research Journal > Vol. 4 (2000/2001) . - 66-70 p
Keywords: Antibiotic resistance, bacteria, extrachromosomal material, R-plasmids Abstract: Bacterial resistance to antibiotics occurs even without the use of antibiotics. Antibiotic use exerts a
selective pressure to the bacterial flora that help in the emergence and development of antibiotic
resistance. Antibiotics are used worldwide both in veterinary and human medicine. The wide
spread use of antibiotics in human and animal has raised the concern about the development of
resistant and multi resistant bacteria that possess a potential danger to animals and men, as
resistance may cause treatment failure. Resistance may be natural or acquired. Acquired resistance
is due to transfer of extrachromosomal genetic material (R-plasmids) and is very important. The
R-plasmids are spread to other bacterial cells by transformation, transduction, conjugation and
transposition. Transmitted antibiotic resistance in disease causing bacteria may cause zoonotic
infections and resistant non-infectious bacteria may serve as a reservoir of R- plasmids for the
pathogenic organism(s). This paper highlights the mechanism of development of resistance in
bacteria and means to minimize it.Link for e-copy: http://elibrary.narc.gov.np/?r=97 Resistance in Groundnut Genotypes to Cercospara Leaf Spot Disease and its Relation with Yield / Shree B. Thakur in Nepal Agriculture Research Journal, Vol.12 (2012)
[article]
Title : Resistance in Groundnut Genotypes to Cercospara Leaf Spot Disease and its Relation with Yield Material Type: printed text Authors: Shree B. Thakur, Author ; Surya K. Ghimire, Author ; Sundar M. Shrestha, Author Publication Date: 2012 Article on page: 63-70p. Languages : English (eng) Keywords: Cercospora leaf spot, Groundnut, Incidence, Resistance, Tolerance Link for e-copy: http://elibrary.narc.gov.np/?r=1285
in Nepal Agriculture Research Journal > Vol.12 (2012) . - 63-70p.[article] Resistance in Groundnut Genotypes to Cercospara Leaf Spot Disease and its Relation with Yield [printed text] / Shree B. Thakur, Author ; Surya K. Ghimire, Author ; Sundar M. Shrestha, Author . - 2012 . - 63-70p.
Languages : English (eng)
in Nepal Agriculture Research Journal > Vol.12 (2012) . - 63-70p.
Keywords: Cercospora leaf spot, Groundnut, Incidence, Resistance, Tolerance Link for e-copy: http://elibrary.narc.gov.np/?r=1285 Resistance in Rice Breeding Lines to the Blast Fungus in Nepal / Bedananda Chaudhary in Nepal Agriculture Research Journal, Vol. 6 (2005)
[article]
Title : Resistance in Rice Breeding Lines to the Blast Fungus in Nepal Material Type: printed text Authors: Bedananda Chaudhary, Author ; Sundar M. Shrestha, Author ; Sharma, R.C., Author Publication Date: 2005 Article on page: 49-56 p Languages : English (eng) Keywords: Blast resistance, field condition, greenhouse assay, Pyricularia grisea, rice lines Abstract: A total of 36 rice breeding lines including checks were evaluated for resistance to blast at
Rampur during 2000-2001. The experiments were conducted under both field condition and
greenhouse inoculated condition. Qualitative resistance in rice to blast was assessed based on
lesion type, whereas quantitative resistance was assessed based on area under disease progress
curve (AUDPC) in the upland field condition. The number of sporulating lesions and the number
of leaves with at least one sporulating lesion per plant were considered as measures for
evaluation of quantitative resistance in the greenhouse assay. The lesion type, neck blast
percentage and AUDPC data suggest that most of the rice lines possess higher level of resistance
to leaf and neck blast. The rice lines varied for the number of sporulating lesions and the number
of leaves with sporulating lesion per plant. Some lines were incompatible to virulent blast
isolates, showing major resistance genes. NR 1558, NR 601-1-1-9, BW306-2 and CN 836-3-10
were promising lines for quantitative resistance to both leaf and neck blast. Radha 12, Sabitri,
Janaki possess higher level of quantitative resistance to blast, hence these could be promoted for
cultivation in blast-prone environments. These genotypes could also be utilized as donor parents
for breeding durable blast resistant varieties. The most virulent blast isolate could be used for
evaluation of both qualitative and quantitative resistance to blast in early generation in the
greenhouse so that workload could be cut down in future works.Link for e-copy: http://elibrary.narc.gov.np/?r=61
in Nepal Agriculture Research Journal > Vol. 6 (2005) . - 49-56 p[article] Resistance in Rice Breeding Lines to the Blast Fungus in Nepal [printed text] / Bedananda Chaudhary, Author ; Sundar M. Shrestha, Author ; Sharma, R.C., Author . - 2005 . - 49-56 p.
Languages : English (eng)
in Nepal Agriculture Research Journal > Vol. 6 (2005) . - 49-56 p
Keywords: Blast resistance, field condition, greenhouse assay, Pyricularia grisea, rice lines Abstract: A total of 36 rice breeding lines including checks were evaluated for resistance to blast at
Rampur during 2000-2001. The experiments were conducted under both field condition and
greenhouse inoculated condition. Qualitative resistance in rice to blast was assessed based on
lesion type, whereas quantitative resistance was assessed based on area under disease progress
curve (AUDPC) in the upland field condition. The number of sporulating lesions and the number
of leaves with at least one sporulating lesion per plant were considered as measures for
evaluation of quantitative resistance in the greenhouse assay. The lesion type, neck blast
percentage and AUDPC data suggest that most of the rice lines possess higher level of resistance
to leaf and neck blast. The rice lines varied for the number of sporulating lesions and the number
of leaves with sporulating lesion per plant. Some lines were incompatible to virulent blast
isolates, showing major resistance genes. NR 1558, NR 601-1-1-9, BW306-2 and CN 836-3-10
were promising lines for quantitative resistance to both leaf and neck blast. Radha 12, Sabitri,
Janaki possess higher level of quantitative resistance to blast, hence these could be promoted for
cultivation in blast-prone environments. These genotypes could also be utilized as donor parents
for breeding durable blast resistant varieties. The most virulent blast isolate could be used for
evaluation of both qualitative and quantitative resistance to blast in early generation in the
greenhouse so that workload could be cut down in future works.Link for e-copy: http://elibrary.narc.gov.np/?r=61 Effect of Promising Rice Genotypes on Leaf Blast Disease Progression / B. Chaudhary in Nepal Agriculture Research Journal, Vol.1, No. 1 (1997)
[article]
Title : Effect of Promising Rice Genotypes on Leaf Blast Disease Progression Material Type: printed text Authors: B. Chaudhary, Author Publication Date: 1997 Article on page: 27-31 p. Languages : English (eng) Keywords: Blast, Pyricularia grisea, partial resistance, rate reducing, slow blasting. Abstract: Nine promising rice genotypes in 1993 and six in 1994 were evaluated for resistance to blast disease (Pyricularia grisea) at the Agriculture Research Station, Rampur, Chitwan. Of the genotypes, three were found promising with respect to leaf blast resistance in both years. Others had faster disease development and had higher terminal disease severities. Among the genotypes tested, AS 781-1 and NR 601-18-1-2, which were promising also in grain yield point of view, showed significantly slower disease progress and lower terminal disease severities. Thus, the genotypes need to be promoted for cultivation under disease prone areas in the country.
Link for e-copy: http://elibrary.narc.gov.np/?r=1796
in Nepal Agriculture Research Journal > Vol.1, No. 1 (1997) . - 27-31 p.[article] Effect of Promising Rice Genotypes on Leaf Blast Disease Progression [printed text] / B. Chaudhary, Author . - 1997 . - 27-31 p.
Languages : English (eng)
in Nepal Agriculture Research Journal > Vol.1, No. 1 (1997) . - 27-31 p.
Keywords: Blast, Pyricularia grisea, partial resistance, rate reducing, slow blasting. Abstract: Nine promising rice genotypes in 1993 and six in 1994 were evaluated for resistance to blast disease (Pyricularia grisea) at the Agriculture Research Station, Rampur, Chitwan. Of the genotypes, three were found promising with respect to leaf blast resistance in both years. Others had faster disease development and had higher terminal disease severities. Among the genotypes tested, AS 781-1 and NR 601-18-1-2, which were promising also in grain yield point of view, showed significantly slower disease progress and lower terminal disease severities. Thus, the genotypes need to be promoted for cultivation under disease prone areas in the country.
Link for e-copy: http://elibrary.narc.gov.np/?r=1796 Controlling Foliar Blight of Wheat through Nutrient Management and Varietal Selection / Yuva R. Kandel in Nepal Agriculture Research Journal, Vol. 9 (2009)
[article]
Title : Controlling Foliar Blight of Wheat through Nutrient Management and Varietal Selection Material Type: printed text Authors: Yuva R. Kandel, Author ; Jay P. Mahato, Author Publication Date: 2009 Article on page: 77-83 p. Languages : English (eng) Keywords: AUDPC, Bipolaris sorokiniana, disease resistance, grainyield, Helminthosporium leaf blight, Pyrenophora tritici-repentis Abstract: Helminthosporium leaf blight, a complex of spot blotch caused by Bipolaris
sorokiniana and tan spot caused by Pyrenophora tritici-repentis, is one of
the most important foliar diseases of wheat in Nepal. It appears in almost all
wheat growing areas and causes severe yield loss every year. A study was
conducted at Regional Agriculture Research Station (RARS), Tarahara,
Sunsari during 2004-05 and 2005-06 wheat growing seasons to elucidate role
of nitrogen in wheat genotypes for management of the disease. Field
experiment was laid out on split plot design with three replications. Four
doses of nitrogen in six different promising genotypes were tested. Nitrogen
levels higher than 50 kg ha-1 significantly reduced disease severity and
increased grain yield in all genotypes but there was no significant differences
in grain yield in the first year. In the second year, grain yield difference
among the genotypes was significant. Area under disease progress curve
(AUDPC) was not significant between two doses 100 and 150 kg ha-1. The
wheat genotypes showed different reactions to disease. Genotype BL 2047
had the lowest incidence of disease followed by BL 1887, whereas BL 2217
had the highest incidence of the disease. Genotype BL 2196 produced the
highest grain yield (2172 kg ha-1) and the lowest grain yield was obtained in
Bhrikuti followed by BL 2089. These results suggested that fertilizer should
be applied in soil at balanced dose 100:50:50 N:P2O5:K2O kg ha-1. Growing
relatively resistant genotypes with the balance dose of fertilizers can reduce
foliar blight severity in wheat.Link for e-copy: http://elibrary.narc.gov.np/?r=11
in Nepal Agriculture Research Journal > Vol. 9 (2009) . - 77-83 p.[article] Controlling Foliar Blight of Wheat through Nutrient Management and Varietal Selection [printed text] / Yuva R. Kandel, Author ; Jay P. Mahato, Author . - 2009 . - 77-83 p.
Languages : English (eng)
in Nepal Agriculture Research Journal > Vol. 9 (2009) . - 77-83 p.
Keywords: AUDPC, Bipolaris sorokiniana, disease resistance, grainyield, Helminthosporium leaf blight, Pyrenophora tritici-repentis Abstract: Helminthosporium leaf blight, a complex of spot blotch caused by Bipolaris
sorokiniana and tan spot caused by Pyrenophora tritici-repentis, is one of
the most important foliar diseases of wheat in Nepal. It appears in almost all
wheat growing areas and causes severe yield loss every year. A study was
conducted at Regional Agriculture Research Station (RARS), Tarahara,
Sunsari during 2004-05 and 2005-06 wheat growing seasons to elucidate role
of nitrogen in wheat genotypes for management of the disease. Field
experiment was laid out on split plot design with three replications. Four
doses of nitrogen in six different promising genotypes were tested. Nitrogen
levels higher than 50 kg ha-1 significantly reduced disease severity and
increased grain yield in all genotypes but there was no significant differences
in grain yield in the first year. In the second year, grain yield difference
among the genotypes was significant. Area under disease progress curve
(AUDPC) was not significant between two doses 100 and 150 kg ha-1. The
wheat genotypes showed different reactions to disease. Genotype BL 2047
had the lowest incidence of disease followed by BL 1887, whereas BL 2217
had the highest incidence of the disease. Genotype BL 2196 produced the
highest grain yield (2172 kg ha-1) and the lowest grain yield was obtained in
Bhrikuti followed by BL 2089. These results suggested that fertilizer should
be applied in soil at balanced dose 100:50:50 N:P2O5:K2O kg ha-1. Growing
relatively resistant genotypes with the balance dose of fertilizers can reduce
foliar blight severity in wheat.Link for e-copy: http://elibrary.narc.gov.np/?r=11 Use of Host Reducing Application of Fungicide for the Management of Potato Late Blight in Nepal / Buddhi P. Sharma, in Nepal Agriculture Research Journal, Vol.12 (2012)Permalink