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Response of Seedling Tuber Size and Level of Potash on Growth and Yield of Clonal Progeny of True Potato Seed under Chitwan Condition / K. Atreya in Nepalese Horticulture, v. 8/9 ([07/25/2012])
[article]
Title : Response of Seedling Tuber Size and Level of Potash on Growth and Yield of Clonal Progeny of True Potato Seed under Chitwan Condition Material Type: printed text Authors: K. Atreya, Author ; A. Srivastava, Author ; Shakya, S.M., Author ; Shrestha, S.M, Author Publication Date: 2012 Article on page: 69-78 p. Languages : English (eng) Keywords: Seedling tuber size, Level of potash, Clonal progeny potato Abstract: A field investigation was carried out during winter season of 2007/08 in the
upland of Horticulture Farm of Institute of the Agriculture and Animal Science,
Rampur, Chitwan, Nepal to evaluate the effect of seedling tuber size and level of
potash on ware potato production of a clonal progeny of hybrid TPS, HPS II/67.
The experiment was laid out in a completely randomized block design having two
factors with sixteen treatment combinations replicated thrice. The treatment
comprised of four seedling tuber size (<5 g, 5-10 g, 10-15 g and >15 g) and four
level of potash (30 kg K2O/ha, 60 kg K2O/ha, 90 kg K2O/ha and 120 kg K2O/ha).
Different sizes of seedling tuber and level of potash significantly affected
emergence, growth, yield and yield attributing characters. Growth parameters
like plant height, number of stem per hill, stem diameter, number of leaves per
plant were found to be influenced significantly due to variation in seedling tuber
size and level of potash. Most of the growth parameters increased with an
increase in seeding tuber size and level of potash. An increase in the level of
potash increases the crop's resistance power against late blight and also helps in
earlier tuber initiation. The highest tuber yield (1.36 kg) per plant was obtained
in treatment combination of >15g seedling tuber size and 120kg K2O/ha.
Increasing the size of seedling tuber and level of potash increases the yield of
different classes of tuber. However, potash is responsible for increasing the
tuber size. The maximum tuber yield was obtained when 10-15 g seedling tuber
was used as a planting material and 120 kg K2O/ha applied. Similarly, the
treatment in combination of 10-15 g seedling tuber size and 120 kg K2O/ha wasfound most effective that gave the highest potato yield (30.03 mt/ha).
in Nepalese Horticulture > v. 8/9 [07/25/2012] . - 69-78 p.[article] Response of Seedling Tuber Size and Level of Potash on Growth and Yield of Clonal Progeny of True Potato Seed under Chitwan Condition [printed text] / K. Atreya, Author ; A. Srivastava, Author ; Shakya, S.M., Author ; Shrestha, S.M, Author . - 2012 . - 69-78 p.
Languages : English (eng)
in Nepalese Horticulture > v. 8/9 [07/25/2012] . - 69-78 p.
Keywords: Seedling tuber size, Level of potash, Clonal progeny potato Abstract: A field investigation was carried out during winter season of 2007/08 in the
upland of Horticulture Farm of Institute of the Agriculture and Animal Science,
Rampur, Chitwan, Nepal to evaluate the effect of seedling tuber size and level of
potash on ware potato production of a clonal progeny of hybrid TPS, HPS II/67.
The experiment was laid out in a completely randomized block design having two
factors with sixteen treatment combinations replicated thrice. The treatment
comprised of four seedling tuber size (<5 g, 5-10 g, 10-15 g and >15 g) and four
level of potash (30 kg K2O/ha, 60 kg K2O/ha, 90 kg K2O/ha and 120 kg K2O/ha).
Different sizes of seedling tuber and level of potash significantly affected
emergence, growth, yield and yield attributing characters. Growth parameters
like plant height, number of stem per hill, stem diameter, number of leaves per
plant were found to be influenced significantly due to variation in seedling tuber
size and level of potash. Most of the growth parameters increased with an
increase in seeding tuber size and level of potash. An increase in the level of
potash increases the crop's resistance power against late blight and also helps in
earlier tuber initiation. The highest tuber yield (1.36 kg) per plant was obtained
in treatment combination of >15g seedling tuber size and 120kg K2O/ha.
Increasing the size of seedling tuber and level of potash increases the yield of
different classes of tuber. However, potash is responsible for increasing the
tuber size. The maximum tuber yield was obtained when 10-15 g seedling tuber
was used as a planting material and 120 kg K2O/ha applied. Similarly, the
treatment in combination of 10-15 g seedling tuber size and 120 kg K2O/ha wasfound most effective that gave the highest potato yield (30.03 mt/ha).Population dynamics of insect pests of rice at RARS Tarahara: a light trap survelliance / G.S Bhandari
in Proceedings of the 27th National Summer Crops Workshop, held at Rampur, Chitawan, 18-20 April 2013, Vol. II / Giri, Y.P.
Title : Population dynamics of insect pests of rice at RARS Tarahara: a light trap survelliance Material Type: printed text Authors: G.S Bhandari, Editor ; B. Chaudhary ; B Sapkota, Author ; D.N Mahato, Author ; S.K Upadhyaya, Author Pagination: 310-314 p. Keywords: Beneficial organism ; Economic threshold level insect pests population dynamics Abstract: Economic loss due to insect pests is one of the major problems for rice production. There
may be a lot of beneficial insects present in the field. Fanners apply chemical pesticides
heavily that may destroy beneficial organisms. There is immense need of studying the
seasonal occurrence of harmful and beneficial insects for their proper management. A
survey of major insect pests of rice was conducted for three years from 20 lO to 2012 with
the objective of assessing seasonal occurrence of major insect pests of rice and beneficial
insects to plan future insect management strategy. Abundance records of insects namely
White Stem Borer, Yellow Stem Borer, Pink Stem Borer, Leaf Folder, Case Worm, Rice
Gundhi Bug and Tiger Beetle were made from January 2010 to December 2012. The study
revealed the overall abundance of pink stem borer as highest followed by yellow stem borer
and Gundhi bug. The relation between population buildup of rice gundhi bug and tiger
beetle found non-significant. The peak population of gundhi bug recorded in the August to
November. However, peak population of tiger beetle was from July to August thus,
reduction in population of gundhi bug was non-significant during its peak period. The study
suggests that the insect management priority be set as per the abundance rank of the studied
insect pests. The study recommends that the judicious use of pesticides be followed for
insect pest management to have increased population of beneficial natural enemies.Link for e-copy: http://elibrary.narc.gov.np/?r=959 Population dynamics of insect pests of rice at RARS Tarahara: a light trap survelliance [printed text] / G.S Bhandari, Editor ; B. Chaudhary ; B Sapkota, Author ; D.N Mahato, Author ; S.K Upadhyaya, Author . - [s.d.] . - 310-314 p.
in Proceedings of the 27th National Summer Crops Workshop, held at Rampur, Chitawan, 18-20 April 2013, Vol. II / Giri, Y.P.
Keywords: Beneficial organism ; Economic threshold level insect pests population dynamics Abstract: Economic loss due to insect pests is one of the major problems for rice production. There
may be a lot of beneficial insects present in the field. Fanners apply chemical pesticides
heavily that may destroy beneficial organisms. There is immense need of studying the
seasonal occurrence of harmful and beneficial insects for their proper management. A
survey of major insect pests of rice was conducted for three years from 20 lO to 2012 with
the objective of assessing seasonal occurrence of major insect pests of rice and beneficial
insects to plan future insect management strategy. Abundance records of insects namely
White Stem Borer, Yellow Stem Borer, Pink Stem Borer, Leaf Folder, Case Worm, Rice
Gundhi Bug and Tiger Beetle were made from January 2010 to December 2012. The study
revealed the overall abundance of pink stem borer as highest followed by yellow stem borer
and Gundhi bug. The relation between population buildup of rice gundhi bug and tiger
beetle found non-significant. The peak population of gundhi bug recorded in the August to
November. However, peak population of tiger beetle was from July to August thus,
reduction in population of gundhi bug was non-significant during its peak period. The study
suggests that the insect management priority be set as per the abundance rank of the studied
insect pests. The study recommends that the judicious use of pesticides be followed for
insect pest management to have increased population of beneficial natural enemies.Link for e-copy: http://elibrary.narc.gov.np/?r=959 E-copies
http://nkcs.org.np/narc/dl/?r=959URL Response of hybrid rice to different spacing and nitrogen levels under irrigated transplanted condition / Pradeep Shah
in Proceedings of the 27th National Summer Crops Workshop, held at Rampur, Chitawan, 18-20 April 2013, Vol. I / Giri, Y.P.
Title : Response of hybrid rice to different spacing and nitrogen levels under irrigated transplanted condition Material Type: printed text Authors: Pradeep Shah ; Mitali Sah, Author ; Anisur Rahman Ansari, Author Pagination: 241-246 p. Languages : English (eng) Keywords: Hybrid rice ; spacing nitrogen level grain yield irrigated Abstract: A field experiment was conducted at the Regional Agricultural Research Station, Parwanipur,
Bara, Nepal during summer seasons of 2011 and 2012 to assess the performance of hybrid
rice under varying levels of spacing and nitrogen under irrigated transplanted condition. Nine
treatment combinations of three spacings viz. 20 x 15, 20 x 20 and 20 x 25 em and three
nitrogen levels i.e. 80, 120 and 160 kg N ha· 1 were laid out in factorial Randomized Complete
Block Design, replicated thrice. The two years result revealed that spacing of 20 x 20 em and
application of 160 kg ha·1 nitrogen recorded significantly higher grain and straw yield. The
yield attributes viz. panicle length, spikelets panicle- 1
, 1000-grain weight, weight of grains
panicle-1 and filled grains panicle·' varied significantly ampng the treatments. Likewise,
application of 160 kg N ha·' recorded significantly higher plant height, dry matter and tiller
planf1
• Spacing of20 x 25 em recorded higher plant height which was at par with 20 x 20 em.
Biomass and tiller planf1 were significantly higher with spacing of20 x 25 em. Highest mean
grain yield of 5.10 t ha· 1 was found in spacing of20 x 20 em and 5.33 t ha·1 in 160 kg N ha·'
followed by 4.6 t ha-1 in spacing of20 x 25 em and 4.72 t ha- 1 in 120 kg N ha- 1
.Link for e-copy: http://elibrary.narc.gov.np/?r=903 Response of hybrid rice to different spacing and nitrogen levels under irrigated transplanted condition [printed text] / Pradeep Shah ; Mitali Sah, Author ; Anisur Rahman Ansari, Author . - [s.d.] . - 241-246 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 ; spacing nitrogen level grain yield irrigated Abstract: A field experiment was conducted at the Regional Agricultural Research Station, Parwanipur,
Bara, Nepal during summer seasons of 2011 and 2012 to assess the performance of hybrid
rice under varying levels of spacing and nitrogen under irrigated transplanted condition. Nine
treatment combinations of three spacings viz. 20 x 15, 20 x 20 and 20 x 25 em and three
nitrogen levels i.e. 80, 120 and 160 kg N ha· 1 were laid out in factorial Randomized Complete
Block Design, replicated thrice. The two years result revealed that spacing of 20 x 20 em and
application of 160 kg ha·1 nitrogen recorded significantly higher grain and straw yield. The
yield attributes viz. panicle length, spikelets panicle- 1
, 1000-grain weight, weight of grains
panicle-1 and filled grains panicle·' varied significantly ampng the treatments. Likewise,
application of 160 kg N ha·' recorded significantly higher plant height, dry matter and tiller
planf1
• Spacing of20 x 25 em recorded higher plant height which was at par with 20 x 20 em.
Biomass and tiller planf1 were significantly higher with spacing of20 x 25 em. Highest mean
grain yield of 5.10 t ha· 1 was found in spacing of20 x 20 em and 5.33 t ha·1 in 160 kg N ha·'
followed by 4.6 t ha-1 in spacing of20 x 25 em and 4.72 t ha- 1 in 120 kg N ha- 1
.Link for e-copy: http://elibrary.narc.gov.np/?r=903 E-copies
http://nkcs.org.np/narc/dl/?r=903URL