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Author Keshab Ghimire |
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Refine your searchEffect of Different Rhizome Covers on Productivity of Large Cardamom (Amomum subulatum Rox.) / Neelam Subba ; Purushottam P. Khatiwada ; Keshab Ghimire ; Ajaya S. Ratna Bajracharya ; Shree P. Bista ; Banhu P. Choudhary
in Proceedings of the fifth National Seminar on Horticulture June 9-10, 2008 / Nepal Agricultural Research Council (NARC) (Khumaltar, Lalitpur, Nepal)
Title : Effect of Different Rhizome Covers on Productivity of Large Cardamom (Amomum subulatum Rox.) Material Type: printed text Authors: Neelam Subba, Author ; Purushottam P. Khatiwada, Author ; Keshab Ghimire, Author ; Ajaya S. Ratna Bajracharya, Author ; Shree P. Bista, Author ; Banhu P. Choudhary, Author Pagination: 212-215 p. Languages : English (eng) Keywords: Amomum subulatum, old plantation, rhizome covers, yield Abstract: Field e;cperiments were conducted for three consecutive years (2005 -2007) in /lam to
study the effect of different rhizome covers in more than 25 year old large cardamom
plantation. Four different rhizome covers; old pseudo stems, shrubs and twigs, mixture
of old pseudo stems with shrubs and bamboo mat support on lower side of clumps
were tested against traditional practice of leaving old bush as such. These rhizome
covers were tested in a Randomized Complete Block Design (RCBD) with four
replications. Unit plot size was 9 Sq m with a total experimental area of 180 Sq m. The
effect of different rhizome covers was found significant on yield and yield attributing
characters. Highest number of new pseudo stems (26.9 and 32.2) was recorded in
shrubs and twigs and lowest (10.1 and 14.5) in traditional practice in two years
respectively. Highest number of bracts (480) and capsules (647) were recorded in plots
with bamboo mat. This rhizome cover treatment might provide large cardamom
growers reluctant . to remove old bushes with an alternate method of increasing
productivity of old plantation.Link for e-copy: http://elibrary.narc.gov.np/?r=248 Effect of Different Rhizome Covers on Productivity of Large Cardamom (Amomum subulatum Rox.) [printed text] / Neelam Subba, Author ; Purushottam P. Khatiwada, Author ; Keshab Ghimire, Author ; Ajaya S. Ratna Bajracharya, Author ; Shree P. Bista, Author ; Banhu P. Choudhary, Author . - [s.d.] . - 212-215 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: Amomum subulatum, old plantation, rhizome covers, yield Abstract: Field e;cperiments were conducted for three consecutive years (2005 -2007) in /lam to
study the effect of different rhizome covers in more than 25 year old large cardamom
plantation. Four different rhizome covers; old pseudo stems, shrubs and twigs, mixture
of old pseudo stems with shrubs and bamboo mat support on lower side of clumps
were tested against traditional practice of leaving old bush as such. These rhizome
covers were tested in a Randomized Complete Block Design (RCBD) with four
replications. Unit plot size was 9 Sq m with a total experimental area of 180 Sq m. The
effect of different rhizome covers was found significant on yield and yield attributing
characters. Highest number of new pseudo stems (26.9 and 32.2) was recorded in
shrubs and twigs and lowest (10.1 and 14.5) in traditional practice in two years
respectively. Highest number of bracts (480) and capsules (647) were recorded in plots
with bamboo mat. This rhizome cover treatment might provide large cardamom
growers reluctant . to remove old bushes with an alternate method of increasing
productivity of old plantation.Link for e-copy: http://elibrary.narc.gov.np/?r=248 E-copies
http://nkcs.org.np/narc/dl/?r=248URL
in Proceedings of the fifth National Seminar on Horticulture June 9-10, 2008 / Nepal Agricultural Research Council (NARC) (Khumaltar, Lalitpur, Nepal)
Title : Identification of Factors Causing Poor and Irregular Germination in Large Cardamom Seed (Amomum subulatum Rox.) Material Type: printed text Authors: Neelam Subba, Author ; Keshab Ghimire, Author ; Purushottam P. Khatiwada, Author ; Jyala Bajracharya, Author ; Sharmila Piya, Author Pagination: 220-226 p. Languages : English (eng) Keywords: Amomum subulatum, poor and irregular germination, embryo immaturity,
oxygen impermeabilityAbstract: Large cardamom seed remain dormant for six to eight months in field conditions. In
addition, poor and irregular germination is the major problem in nursery raising of large
cardamom. Different factors causing dormancy were studied in 2062/63-2063/64 at
Agricultural Research Station, Pakhribas and Seed Technology Research Division,
Khumaltar. Large Cardamom cv. Ramsahi was subjected to following hypothesis;
dormancy due to poor water permeability, poor oxygen exchange, presen_s;e- of water
soluble inhibitors, embryo immaturity or a combination of more than one factors. Hard
seed coat did not impose significant barriers to moisture uptake in large cardamom
seed. Different dormancy relieving treatments to test the above hypothesis differed
significantly in number of germinated seed placed in alternating temperature regime of
30°C and 200C for 8 and 16/:Jrs respectively. Earliest germination within 30 days was
I
observed in seed treated for embryo maturation and oxygen permeability and highest
percent germination (66%} was observed in the first four months in seed treated for
oxygen permeability. Seed treated for oxygen permeability after 3 minutes scarification
with uniform sized gravels when sown in nursery showed > 40% germination in field in
the first four months. It can be concluded that not one but the combination of above
mentioned factors are responsible for causing dormancy in large cardamom.Identification of Factors Causing Poor and Irregular Germination in Large Cardamom Seed (Amomum subulatum Rox.) [printed text] / Neelam Subba, Author ; Keshab Ghimire, Author ; Purushottam P. Khatiwada, Author ; Jyala Bajracharya, Author ; Sharmila Piya, Author . - [s.d.] . - 220-226 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: Amomum subulatum, poor and irregular germination, embryo immaturity,
oxygen impermeabilityAbstract: Large cardamom seed remain dormant for six to eight months in field conditions. In
addition, poor and irregular germination is the major problem in nursery raising of large
cardamom. Different factors causing dormancy were studied in 2062/63-2063/64 at
Agricultural Research Station, Pakhribas and Seed Technology Research Division,
Khumaltar. Large Cardamom cv. Ramsahi was subjected to following hypothesis;
dormancy due to poor water permeability, poor oxygen exchange, presen_s;e- of water
soluble inhibitors, embryo immaturity or a combination of more than one factors. Hard
seed coat did not impose significant barriers to moisture uptake in large cardamom
seed. Different dormancy relieving treatments to test the above hypothesis differed
significantly in number of germinated seed placed in alternating temperature regime of
30°C and 200C for 8 and 16/:Jrs respectively. Earliest germination within 30 days was
I
observed in seed treated for embryo maturation and oxygen permeability and highest
percent germination (66%} was observed in the first four months in seed treated for
oxygen permeability. Seed treated for oxygen permeability after 3 minutes scarification
with uniform sized gravels when sown in nursery showed > 40% germination in field in
the first four months. It can be concluded that not one but the combination of above
mentioned factors are responsible for causing dormancy in large cardamom.
in Proceedings of the fifth National Seminar on Horticulture June 9-10, 2008 / Nepal Agricultural Research Council (NARC) (Khumaltar, Lalitpur, Nepal)
Title : Identification of Factors Causing Poor and Irregular Germination in Large Cardamom Seed (Amomum subulatum Rox.) Material Type: printed text Authors: Neelam Subba, Author ; Keshab Ghimire, Author ; Purushottam P. Khatiwada, Author ; Jyala Bajracharya, Author ; Sharmila Piya, Author Pagination: 220-226 p. Languages : English (eng) Keywords: Amomum subulatum, poor and irregular germination, embryo immaturity,
oxygen impermeabilityAbstract: Large cardamom seed remain dormant for six to eight months in field conditions. In
addition, poor and irregular germination is the major problem in nursery raising of large
cardamom. Different factors causing dormancy were studied in 2062/63-2063/64 at
Agricultural Research Station, Pakhribas and Seed Technology Research Division,
Khumaltar. Large Cardamom cv. Ramsahi was subjected to following hypothesis;
dormancy due to poor water permeability, poor oxygen exchange, presen_s;e- of water
soluble inhibitors, embryo immaturity or a combination of more than one factors. Hard
seed coat did not impose significant barriers to moisture uptake in large cardamom
seed. Different dormancy relieving treatments to test the above hypothesis differed
significantly in number of germinated seed placed in alternating temperature regime of
30°C and 200C for 8 and 16/:Jrs respectively. Earliest germination within 30 days was
I
observed in seed treated for embryo maturation and oxygen permeability and highest
percent germination (66%} was observed in the first four months in seed treated for
oxygen permeability. Seed treated for oxygen permeability after 3 minutes scarification
with uniform sized gravels when sown in nursery showed > 40% germination in field in
the first four months. It can be concluded that not one but the combination of above
mentioned factors are responsible for causing dormancy in large cardamom.Link for e-copy: http://elibrary.narc.gov.np/?r=250 Identification of Factors Causing Poor and Irregular Germination in Large Cardamom Seed (Amomum subulatum Rox.) [printed text] / Neelam Subba, Author ; Keshab Ghimire, Author ; Purushottam P. Khatiwada, Author ; Jyala Bajracharya, Author ; Sharmila Piya, Author . - [s.d.] . - 220-226 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: Amomum subulatum, poor and irregular germination, embryo immaturity,
oxygen impermeabilityAbstract: Large cardamom seed remain dormant for six to eight months in field conditions. In
addition, poor and irregular germination is the major problem in nursery raising of large
cardamom. Different factors causing dormancy were studied in 2062/63-2063/64 at
Agricultural Research Station, Pakhribas and Seed Technology Research Division,
Khumaltar. Large Cardamom cv. Ramsahi was subjected to following hypothesis;
dormancy due to poor water permeability, poor oxygen exchange, presen_s;e- of water
soluble inhibitors, embryo immaturity or a combination of more than one factors. Hard
seed coat did not impose significant barriers to moisture uptake in large cardamom
seed. Different dormancy relieving treatments to test the above hypothesis differed
significantly in number of germinated seed placed in alternating temperature regime of
30°C and 200C for 8 and 16/:Jrs respectively. Earliest germination within 30 days was
I
observed in seed treated for embryo maturation and oxygen permeability and highest
percent germination (66%} was observed in the first four months in seed treated for
oxygen permeability. Seed treated for oxygen permeability after 3 minutes scarification
with uniform sized gravels when sown in nursery showed > 40% germination in field in
the first four months. It can be concluded that not one but the combination of above
mentioned factors are responsible for causing dormancy in large cardamom.Link for e-copy: http://elibrary.narc.gov.np/?r=250 E-copies
http://nkcs.org.np/narc/dl/?r=250URL
in Advancing horticultural research for development. Proceedings of the 7th National Horticulture Seminar , Khumaltar, Lalitpur, 12-14 June 2011 (Jestha 29-31, 2068) / Paudyal, K.P.
Title : Study on Efficacy of v Arlo Us Insecticides and Botanicals Against Insect Pests (Plutel/A Xylostel/A L., Pieris B!'Assicae L. and Brevicoryne Brassicae L.) of Off-Season Cabbage Production in the Eastern Hills of Nepal Material Type: printed text Authors: Ajaya S. R. Bajracharya, Author ; Sharmila Piya, Author ; Keshab Ghimire, Author ; Dhanik L. Mandal, Author ; Shiva N. Mehta, Author Pagination: 131-135 p. Languages : English (eng) Keywords: DBM. Cabbage butterfly, aphid Abstract: Farmers of the eastern hills grow cabbage during off-season (April-October) period to the plains
for higher market prices but production during this period is risky with the potential losses to
insect pests: cabbage butterfly (Pieris brassicae L.), diamond back moths (Piutella xylostella L.)
and aphid (Brevicoryne brassicae L.). Considering this fact, an experiment in RCBD with three
replications was conducted to identify suitable chemical and botanical insecticides against cabbage
pests: diamond back moth (Piutella xylostella L.). cabbage butterfly (Pieris brassicae L.) and aphid
(Brevicoryne brassicae L.) at ARS, Pakhribas (1750 mas/) during 2008 and 2009 March-May
production with variety, "Green Coronet". Treatments included were Commercial azadirachtin
formulation (0.003 ·%}, Aqueous Melia azedarach leaf extract, Aqueous tobacco extract + soap,
Aqueous solution Acorus calamus rhizome powder/Deltamethrin 0.003%, Cypermethrin 0.025%,
Malathion 0.05%, Endosulfan 0.15%, Dichlorvos 0.075%, combination of botanicals and control.
The result showed that diamond back moth had developed resistance to Cypermethrin 0.025% due
to its use since a long time in vegetable cultivation. Melia azedarach leaf extract and Acarus
calamus rhizome extract are ineffective in controlling insect pests of cabbage. Application of either
of commercial azadirachtinformu/ation (0.003 %), Aqueous tobacco extract+ soap, Deltamethrin
0.003%, Malathion 0.05%, Endosulfan 0./5% and Dichlorvos 0.075% twice fortnightly: two
weeks after transplanting cabbage seedling provide sufficient protection from diamond back moth,
cabbage butterfly and aphid Alternate use of botanicals (Azadirachtin and tobacco) with chemical
pesticides (Deltamethrin, Endosulfan, Malathion and Dichlorovos) could be a better option to
reduce selection pressure on DBM larvae.Link for e-copy: http://elibrary.narc.gov.np/?r=1654 Study on Efficacy of v Arlo Us Insecticides and Botanicals Against Insect Pests (Plutel/A Xylostel/A L., Pieris B!'Assicae L. and Brevicoryne Brassicae L.) of Off-Season Cabbage Production in the Eastern Hills of Nepal [printed text] / Ajaya S. R. Bajracharya, Author ; Sharmila Piya, Author ; Keshab Ghimire, Author ; Dhanik L. Mandal, Author ; Shiva N. Mehta, Author . - [s.d.] . - 131-135 p.
in Advancing horticultural research for development. Proceedings of the 7th National Horticulture Seminar , Khumaltar, Lalitpur, 12-14 June 2011 (Jestha 29-31, 2068) / Paudyal, K.P.
Languages : English (eng)
Keywords: DBM. Cabbage butterfly, aphid Abstract: Farmers of the eastern hills grow cabbage during off-season (April-October) period to the plains
for higher market prices but production during this period is risky with the potential losses to
insect pests: cabbage butterfly (Pieris brassicae L.), diamond back moths (Piutella xylostella L.)
and aphid (Brevicoryne brassicae L.). Considering this fact, an experiment in RCBD with three
replications was conducted to identify suitable chemical and botanical insecticides against cabbage
pests: diamond back moth (Piutella xylostella L.). cabbage butterfly (Pieris brassicae L.) and aphid
(Brevicoryne brassicae L.) at ARS, Pakhribas (1750 mas/) during 2008 and 2009 March-May
production with variety, "Green Coronet". Treatments included were Commercial azadirachtin
formulation (0.003 ·%}, Aqueous Melia azedarach leaf extract, Aqueous tobacco extract + soap,
Aqueous solution Acorus calamus rhizome powder/Deltamethrin 0.003%, Cypermethrin 0.025%,
Malathion 0.05%, Endosulfan 0.15%, Dichlorvos 0.075%, combination of botanicals and control.
The result showed that diamond back moth had developed resistance to Cypermethrin 0.025% due
to its use since a long time in vegetable cultivation. Melia azedarach leaf extract and Acarus
calamus rhizome extract are ineffective in controlling insect pests of cabbage. Application of either
of commercial azadirachtinformu/ation (0.003 %), Aqueous tobacco extract+ soap, Deltamethrin
0.003%, Malathion 0.05%, Endosulfan 0./5% and Dichlorvos 0.075% twice fortnightly: two
weeks after transplanting cabbage seedling provide sufficient protection from diamond back moth,
cabbage butterfly and aphid Alternate use of botanicals (Azadirachtin and tobacco) with chemical
pesticides (Deltamethrin, Endosulfan, Malathion and Dichlorovos) could be a better option to
reduce selection pressure on DBM larvae.Link for e-copy: http://elibrary.narc.gov.np/?r=1654 E-copies
http://nkcs.org.np/narc/dl/?r=1654URL
