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Author Gyan P. Rai |
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Refine your searchEvaluation of Potato Clones at Central Terai of Nepal / Binod P. Luitel ; Surendra L. Shrestha ; Shim B. Khatri ; Gyan P. Rai
in Proceedings of the fifth National Seminar on Horticulture June 9-10, 2008 / Nepal Agricultural Research Council (NARC) (Khumaltar, Lalitpur, Nepal)
Title : Evaluation of Potato Clones at Central Terai of Nepal Material Type: printed text Authors: Binod P. Luitel, Author ; Surendra L. Shrestha, Author ; Shim B. Khatri, Author ; Gyan P. Rai, Author Pagination: 144-150 p. Languages : English (eng) Keywords: Clones, late blight, potato, resistant, yield Abstract: A field experiment-was carried out at RARS Parwanipur during 2003 and 2004 to
evaluate the potato clones. Plant emergence, uniformity and percent ground foliage
were significantly higher at clone 393280.64. Plant height was measured highest
(58.7 em) in clone 392637.10 and highest number of stems per plant (3.6) in clone
393385.39. Clones 385556.4 and 393077. 159 were found resistant to late blight
whereas clones 392657.8, 393280.64 and 392637.10 were tolerant to late blight. With
respect to total and marketable tuber yield, six potato clones were produced
significantly higher tuber yield as compared to check varieties. Based on the evaluation
parameters, late blight infection, tuber yield and agronomic characters, clones
388556.4, 392657.8, 392280.64, 392637.10, 393077.159 and 393385.39 were
selected for further evaluation.Link for e-copy: http://elibrary.narc.gov.np/?r=236 Evaluation of Potato Clones at Central Terai of Nepal [printed text] / Binod P. Luitel, Author ; Surendra L. Shrestha, Author ; Shim B. Khatri, Author ; Gyan P. Rai, Author . - [s.d.] . - 144-150 p.
in Proceedings of the fifth National Seminar on Horticulture June 9-10, 2008 / Nepal Agricultural Research Council (NARC) (Khumaltar, Lalitpur, Nepal)
Languages : English (eng)
Keywords: Clones, late blight, potato, resistant, yield Abstract: A field experiment-was carried out at RARS Parwanipur during 2003 and 2004 to
evaluate the potato clones. Plant emergence, uniformity and percent ground foliage
were significantly higher at clone 393280.64. Plant height was measured highest
(58.7 em) in clone 392637.10 and highest number of stems per plant (3.6) in clone
393385.39. Clones 385556.4 and 393077. 159 were found resistant to late blight
whereas clones 392657.8, 393280.64 and 392637.10 were tolerant to late blight. With
respect to total and marketable tuber yield, six potato clones were produced
significantly higher tuber yield as compared to check varieties. Based on the evaluation
parameters, late blight infection, tuber yield and agronomic characters, clones
388556.4, 392657.8, 392280.64, 392637.10, 393077.159 and 393385.39 were
selected for further evaluation.Link for e-copy: http://elibrary.narc.gov.np/?r=236 E-copies
http://nkcs.org.np/narc/dl/?r=236URL
in Proceedings of the fifth National Seminar on Horticulture June 9-10, 2008 / Nepal Agricultural Research Council (NARC) (Khumaltar, Lalitpur, Nepal)
Title : Evaluation of True Potato Seed Families and Us Adaptability in Nepal Material Type: printed text Authors: Ram C. Adhikari, Author ; Janardan Ghimire, Author ; Gyan P. Rai, Author ; Shambhu P. Baral, Author ; Duryodhan Chaudhary, Author ; K.C.Upreti, Author Pagination: 151-161 p. Languages : English (eng) Keywords: family, nursery bed, seedling tuber, true potato seed, yield Abstract: The major constraints for production of potatoes in Nepal are the poor quality and high
cost of seed tubers. Most successful and widely adoptable methodology in TPS has
been the use of seedling ·tubers for raising commercial crop. Twenty TPS families
received from International Potato Center Lima Peru were evaluated at National Potato
Research Program, Khumaltar, Agriculture Research Station Belachapi and Agriculture ·
Research Station Malepatan during 2005 and 2006 to see their performance. The
families were tested . in randomized complete block design (RCBD) with three
replications. TPS family C95 LB 22.2 x TP$ 67 and HPS IV67 significantly .produced
the maximum tuber yield 5.4 kg/rrf and 7. 03 kg/rrf at Khumaltar and Belachapi,
respectively in the nursery beds in 2005. But, in 2006 significantly maximum
seedling tuber yield 7.90 kglrrf, 5.04 kg/rrf and 4. 76 kg/rrf w~s obtained from
C96H 10.25 x TPS 13, FLS 15 x TPS 67 and FLS 12 x TPS 67 at Khuma/tar,
Malepatan and Belachapi, respectively. In commercial crop, F1C1 tuberlets or
C96H 13.29 x TPS 67 and FLS 12 x TPS 13 significantly produced the m_aximum tuber
yield (20.73 kg/7.2 rrf and 14.02 kg/7.2 rrf) at Khumaltar and Belachapi, respectively
as compared to Desiree (12. 17 kg/7.2 rrf at Khumaltar) and Lalgulab {5.87 kg/7.2 rr( at
Belachapi). Based on overall performance the results· suggest that the. hybrid TPS
families produce equal. or higher tuber yield as compared to standard clonal varieties.Link for e-copy: http://elibrary.narc.gov.np/?r=239 Evaluation of True Potato Seed Families and Us Adaptability in Nepal [printed text] / Ram C. Adhikari, Author ; Janardan Ghimire, Author ; Gyan P. Rai, Author ; Shambhu P. Baral, Author ; Duryodhan Chaudhary, Author ; K.C.Upreti, Author . - [s.d.] . - 151-161 p.
in Proceedings of the fifth National Seminar on Horticulture June 9-10, 2008 / Nepal Agricultural Research Council (NARC) (Khumaltar, Lalitpur, Nepal)
Languages : English (eng)
Keywords: family, nursery bed, seedling tuber, true potato seed, yield Abstract: The major constraints for production of potatoes in Nepal are the poor quality and high
cost of seed tubers. Most successful and widely adoptable methodology in TPS has
been the use of seedling ·tubers for raising commercial crop. Twenty TPS families
received from International Potato Center Lima Peru were evaluated at National Potato
Research Program, Khumaltar, Agriculture Research Station Belachapi and Agriculture ·
Research Station Malepatan during 2005 and 2006 to see their performance. The
families were tested . in randomized complete block design (RCBD) with three
replications. TPS family C95 LB 22.2 x TP$ 67 and HPS IV67 significantly .produced
the maximum tuber yield 5.4 kg/rrf and 7. 03 kg/rrf at Khumaltar and Belachapi,
respectively in the nursery beds in 2005. But, in 2006 significantly maximum
seedling tuber yield 7.90 kglrrf, 5.04 kg/rrf and 4. 76 kg/rrf w~s obtained from
C96H 10.25 x TPS 13, FLS 15 x TPS 67 and FLS 12 x TPS 67 at Khuma/tar,
Malepatan and Belachapi, respectively. In commercial crop, F1C1 tuberlets or
C96H 13.29 x TPS 67 and FLS 12 x TPS 13 significantly produced the m_aximum tuber
yield (20.73 kg/7.2 rrf and 14.02 kg/7.2 rrf) at Khumaltar and Belachapi, respectively
as compared to Desiree (12. 17 kg/7.2 rrf at Khumaltar) and Lalgulab {5.87 kg/7.2 rr( at
Belachapi). Based on overall performance the results· suggest that the. hybrid TPS
families produce equal. or higher tuber yield as compared to standard clonal varieties.Link for e-copy: http://elibrary.narc.gov.np/?r=239 E-copies
http://nkcs.org.np/narc/dl/?r=239URL
in Agricultural research for poverty alleviation and livelihood enhancement. Proceedings of the 3rd SAS-N Convention 27-29 August 2008, Lalitpur / Paudyal, Krishna Prasad
Title : Food Security: Contribution and Vision for Sustainable Potato Production in Nepal Material Type: printed text Authors: Adhikari, R.C., Author ; Gyan P. Rai, Author ; Ghimire, J., Author Pagination: 94-103 p. Languages : English (eng) Abstract: Potato is a wholesome and nutritious food. It is a staple food in high hills and as side dishes in other part of the country, with per capita consumption of 61.6 kg in 2007 (VDD 2007), one of the highest national rate in south Asia. In Nepal, potato production has increased more than six times since 1970s. Potatoes are grown in a wide range of altitudes, from the lowland terai, to 4000 msl above sea level. Potato is more productive than the major cereals. Small farmers grow the crop predominantly. This crop plays an important role in the country’s food security and poverty alleviation because of its short vegetative cycle and high cash and food value as compared to any other major cereals. It serves as the food security crop alleviating seasonal shortage and fills food gaps.………………….
Link for e-copy: http://elibrary.narc.gov.np/?r=1510 Food Security: Contribution and Vision for Sustainable Potato Production in Nepal [printed text] / Adhikari, R.C., Author ; Gyan P. Rai, Author ; Ghimire, J., Author . - [s.d.] . - 94-103 p.
in Agricultural research for poverty alleviation and livelihood enhancement. Proceedings of the 3rd SAS-N Convention 27-29 August 2008, Lalitpur / Paudyal, Krishna Prasad
Languages : English (eng)
Abstract: Potato is a wholesome and nutritious food. It is a staple food in high hills and as side dishes in other part of the country, with per capita consumption of 61.6 kg in 2007 (VDD 2007), one of the highest national rate in south Asia. In Nepal, potato production has increased more than six times since 1970s. Potatoes are grown in a wide range of altitudes, from the lowland terai, to 4000 msl above sea level. Potato is more productive than the major cereals. Small farmers grow the crop predominantly. This crop plays an important role in the country’s food security and poverty alleviation because of its short vegetative cycle and high cash and food value as compared to any other major cereals. It serves as the food security crop alleviating seasonal shortage and fills food gaps.………………….
Link for e-copy: http://elibrary.narc.gov.np/?r=1510 E-copies
http://nkcs.org.np/narc/dl/?r=1510URL
in Proceedings of the fifth National Seminar on Horticulture June 9-10, 2008 / Nepal Agricultural Research Council (NARC) (Khumaltar, Lalitpur, Nepal)
Title : Lowcost Production of In Vitro Plantlets for Sustainable Pre-basic Seed Potato Production In Nepal Material Type: printed text Authors: Binesh M. Sakha, Author ; Gyan P. Rai, Author ; Shambhu P. Dhital, Author Pagination: 162-167 p. Languages : English (eng) Keywords: intensive culture, in vitro, mini tubers, pre-basic seed, sustainable Abstract: In vitro and in vivo experiments were conducted in the tissue culture laboratory and
glasshouse of National Potato Research Programme, Khumaltar during 1997/98 to
minimize the cost of in vitro potato plantlets production. Use of sugar as substitute for
sucrose in culture showed no difference in the growth performance of in vitro potato
plantlets, and even in their yield performance under glasshouse condition. Culture of in
vitro potato plantlets on test tubes at the rate of 40 culture tubes per tray of 50 tubes
capacity was efficient than raising usual 30 culture tubes per tray, since both produced
more vigorous plantlets with higher nodal explants harvest as compared to culturing 50
tubes per tray. Culturing of 10 plantlets per bottle produced higher proportion of usable
nodal explants as compared to plantlets cultured at the rate of 12 and 15 plantlets per
bottle. Therefore, for the sustainable PBS production, sucrose could be substituted by
sugar in the cultures medium, in vitro potato plantlets subculture on trays at the rate of
40 tubes per tray and final multiplication of cultures on jam bottles at the rate .of 10
plantlets per bottle. A 37% cost reduction in the in vitro culture of potato was achieved
by intensive culture of plantlets on jam bottles.Link for e-copy: http://elibrary.narc.gov.np/?r=240 Lowcost Production of In Vitro Plantlets for Sustainable Pre-basic Seed Potato Production In Nepal [printed text] / Binesh M. Sakha, Author ; Gyan P. Rai, Author ; Shambhu P. Dhital, Author . - [s.d.] . - 162-167 p.
in Proceedings of the fifth National Seminar on Horticulture June 9-10, 2008 / Nepal Agricultural Research Council (NARC) (Khumaltar, Lalitpur, Nepal)
Languages : English (eng)
Keywords: intensive culture, in vitro, mini tubers, pre-basic seed, sustainable Abstract: In vitro and in vivo experiments were conducted in the tissue culture laboratory and
glasshouse of National Potato Research Programme, Khumaltar during 1997/98 to
minimize the cost of in vitro potato plantlets production. Use of sugar as substitute for
sucrose in culture showed no difference in the growth performance of in vitro potato
plantlets, and even in their yield performance under glasshouse condition. Culture of in
vitro potato plantlets on test tubes at the rate of 40 culture tubes per tray of 50 tubes
capacity was efficient than raising usual 30 culture tubes per tray, since both produced
more vigorous plantlets with higher nodal explants harvest as compared to culturing 50
tubes per tray. Culturing of 10 plantlets per bottle produced higher proportion of usable
nodal explants as compared to plantlets cultured at the rate of 12 and 15 plantlets per
bottle. Therefore, for the sustainable PBS production, sucrose could be substituted by
sugar in the cultures medium, in vitro potato plantlets subculture on trays at the rate of
40 tubes per tray and final multiplication of cultures on jam bottles at the rate .of 10
plantlets per bottle. A 37% cost reduction in the in vitro culture of potato was achieved
by intensive culture of plantlets on jam bottles.Link for e-copy: http://elibrary.narc.gov.np/?r=240 E-copies
http://nkcs.org.np/narc/dl/?r=240URL
