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Author B. Sapkota |
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Refine your search Apply to external sourcesEffect of plant growth regulators on flowering and fruit yield of cucumber (Cucumis sativus cv. Malini) in Chitwan, Nepal / B. Sapkota in Journal of Agriculture and Forestry University, Volume 4 (2020)
Title : Effect of plant growth regulators on flowering and fruit yield of cucumber (Cucumis sativus cv. Malini) in Chitwan, Nepal Material Type: printed text Authors: B. Sapkota, Author ; M. Dhital, Author ; Basanta Shrestha, Author ; K. M. Tripathi, Author Publication Date: 2020 Article on page: 161-167 p. Languages : English (eng) Keywords: Cucumber, Plant growth regulators, Flowering, Sex expression Abstract: An experiment was done at Rambagh, Chitwan during March to May 2018 with the objective to evaluate the effect of plant
growth regulators on growth, flowering and yield of cucumber (Cucumissativus.) cv. Malini. The experiment consisted of
nine treatments viz., control (no spray), silver nitrate 250 ppm spray, ethephon 250 ppm spray, gibberellic acid (GA3
) 300
ppm spray, napthalene acetic acid (NAA) 50 ppm spray, silver nitrate 500 ppm spray, ethephon 250 ppm spray, gibberellic
acid (GA3
) 500 ppm spry, and napthalene acetic acid (NAA) 100 ppm spray; each treatment was replicated thrice. Findings
revealed that use of plant growth regulators significantly affected growth, flowering and fruit yield of cucumber. The highest
plant height was measured for GA3
300 ppm spray whereas lowest plant height was measured for NAA 100 ppm spray.
Likewise, GA3 300 ppm spray had produced highest number of lateral branches. On the other hand, highest number of male
flower was recorded in control, but highest number of female flower was recorded for ethephon 250 ppm spray whereas it
was lowest for control (14.00). The highest and lowest fruit length was recorded if GA3 500 ppm and ethephon 250 ppm were
sprayed, respectively. Likewise, the highest fruit numbers per plant was recorded in GA3
300 ppm application whereas the
control had the lowest number of fruit produced. The highest fruit yield was produced from the application of GA3
300 ppm
(109.7 t/ha) while the lowest fruit yield was recorded in control (40.53 t/ha). The B: C ratio was high in GA3
300 ppm (4.37)
application as well. These results indicate the benefit of spraying GA3
300 ppm to have a better performance and fruit yield
of cucumber compared to the other treatments with varied concentrations of NAA and GA3
.Link for e-copy: https://afu.edu.np/sites/default/files/Effect%20of%20plant%20growth%20regulators [...]
in Journal of Agriculture and Forestry University > Volume 4 (2020) . - 161-167 p.[article] Effect of plant growth regulators on flowering and fruit yield of cucumber (Cucumis sativus cv. Malini) in Chitwan, Nepal [printed text] / B. Sapkota, Author ; M. Dhital, Author ; Basanta Shrestha, Author ; K. M. Tripathi, Author . - 2020 . - 161-167 p.
Languages : English (eng)
in Journal of Agriculture and Forestry University > Volume 4 (2020) . - 161-167 p.
Keywords: Cucumber, Plant growth regulators, Flowering, Sex expression Abstract: An experiment was done at Rambagh, Chitwan during March to May 2018 with the objective to evaluate the effect of plant
growth regulators on growth, flowering and yield of cucumber (Cucumissativus.) cv. Malini. The experiment consisted of
nine treatments viz., control (no spray), silver nitrate 250 ppm spray, ethephon 250 ppm spray, gibberellic acid (GA3
) 300
ppm spray, napthalene acetic acid (NAA) 50 ppm spray, silver nitrate 500 ppm spray, ethephon 250 ppm spray, gibberellic
acid (GA3
) 500 ppm spry, and napthalene acetic acid (NAA) 100 ppm spray; each treatment was replicated thrice. Findings
revealed that use of plant growth regulators significantly affected growth, flowering and fruit yield of cucumber. The highest
plant height was measured for GA3
300 ppm spray whereas lowest plant height was measured for NAA 100 ppm spray.
Likewise, GA3 300 ppm spray had produced highest number of lateral branches. On the other hand, highest number of male
flower was recorded in control, but highest number of female flower was recorded for ethephon 250 ppm spray whereas it
was lowest for control (14.00). The highest and lowest fruit length was recorded if GA3 500 ppm and ethephon 250 ppm were
sprayed, respectively. Likewise, the highest fruit numbers per plant was recorded in GA3
300 ppm application whereas the
control had the lowest number of fruit produced. The highest fruit yield was produced from the application of GA3
300 ppm
(109.7 t/ha) while the lowest fruit yield was recorded in control (40.53 t/ha). The B: C ratio was high in GA3
300 ppm (4.37)
application as well. These results indicate the benefit of spraying GA3
300 ppm to have a better performance and fruit yield
of cucumber compared to the other treatments with varied concentrations of NAA and GA3
.Link for e-copy: https://afu.edu.np/sites/default/files/Effect%20of%20plant%20growth%20regulators [...]
Title : Efficacy of biological and chemical insecticides against diamondback moth (Plutella xylostella L.) on Cabbage (Brassica oleracea L. Var capitata) Material Type: printed text Authors: B. Sapkota, Author ; Regmi,R., Author ; S. Tiwari, Author ; R.B Thapa, Author Publication Date: 2022 Article on page: 95-101 p. Languages : English (eng) Keywords: Bio-pesticides, cabbage, P. xylostella, management, emamectin benzoate, neemix Abstract: Diamondback moth, Plutella xylostella (L.) is the most devastating pest in late winter in cabbage (Brassica
oleracea var. capitata L.). Pesticides are the common pest management practices to manage the crucifer pests.
These practices are not sustainable and ecofriendly. Hence, a field experiment was conducted to evaluate the
efficacy of chemical, botanicals and biological insecticides todevelop safer and more effective insecticides for
the diamondback moth, in cabbage during winter season 2018-19. The experiment was laid in a randomized
block design (RCBD) with four replication and five treatments viz. i) Emamectin benzoate 5SG @ 0.4 gm/l, ii)
Neemix (Azadirachtin 300 ppm) @ 2 ml/l, iii) Metarhizium anisopliae @ 2 ml/l, iv) Beauveri abassiana @ 2 ml/l
and v) control (untreated). Standard recommended agronomic practices were followed in field to ensure better
crop growth. The maximum reduction of P. xylostella larval population over untreated control was recorded
in Emamectin benzoate 5 SG (95%) andNeemix(95%) sprayed field. Bio-pesticides such asM. anisopliae and
B. bassiana were effective only after the first spray with maximum efficacy of (76%) and (65%), respectively,
and decreased efficacy in the second and third sprays. Both yields with the least number of damaged leaves and
maximum net profit was recorded in Emamectin benzoate sprayed plots with a higher benefit-cost ratio of (3.47),
which was followed by M. anisopliae(2.96) and Neemix (2.92) treatments, respectively. Emamectin benzoate 5
SG and Neemix are effective and safe insecticides in controlling diamondback moth in cabbage crops and are
viable options for integrated management of P. xylostella.Link for e-copy: https://afu.edu.np/sites/default/files/Efficacy_of_biological_and_chemical_insec [...]
in Journal of Agriculture and Forestry University > Volume 5 (2022) . - 95-101 p.[article] Efficacy of biological and chemical insecticides against diamondback moth (Plutella xylostella L.) on Cabbage (Brassica oleracea L. Var capitata) [printed text] / B. Sapkota, Author ; Regmi,R., Author ; S. Tiwari, Author ; R.B Thapa, Author . - 2022 . - 95-101 p.
Languages : English (eng)
in Journal of Agriculture and Forestry University > Volume 5 (2022) . - 95-101 p.
Keywords: Bio-pesticides, cabbage, P. xylostella, management, emamectin benzoate, neemix Abstract: Diamondback moth, Plutella xylostella (L.) is the most devastating pest in late winter in cabbage (Brassica
oleracea var. capitata L.). Pesticides are the common pest management practices to manage the crucifer pests.
These practices are not sustainable and ecofriendly. Hence, a field experiment was conducted to evaluate the
efficacy of chemical, botanicals and biological insecticides todevelop safer and more effective insecticides for
the diamondback moth, in cabbage during winter season 2018-19. The experiment was laid in a randomized
block design (RCBD) with four replication and five treatments viz. i) Emamectin benzoate 5SG @ 0.4 gm/l, ii)
Neemix (Azadirachtin 300 ppm) @ 2 ml/l, iii) Metarhizium anisopliae @ 2 ml/l, iv) Beauveri abassiana @ 2 ml/l
and v) control (untreated). Standard recommended agronomic practices were followed in field to ensure better
crop growth. The maximum reduction of P. xylostella larval population over untreated control was recorded
in Emamectin benzoate 5 SG (95%) andNeemix(95%) sprayed field. Bio-pesticides such asM. anisopliae and
B. bassiana were effective only after the first spray with maximum efficacy of (76%) and (65%), respectively,
and decreased efficacy in the second and third sprays. Both yields with the least number of damaged leaves and
maximum net profit was recorded in Emamectin benzoate sprayed plots with a higher benefit-cost ratio of (3.47),
which was followed by M. anisopliae(2.96) and Neemix (2.92) treatments, respectively. Emamectin benzoate 5
SG and Neemix are effective and safe insecticides in controlling diamondback moth in cabbage crops and are
viable options for integrated management of P. xylostella.Link for e-copy: https://afu.edu.np/sites/default/files/Efficacy_of_biological_and_chemical_insec [...]
Title : Mulching materials affect growth and yield characters of cucumber (Cucumis sativus cv. Malini) under drip irrigation condition in Chitwan, Nepal | A. Karki, B. Sapkota, P. Bist, K. Bista, J. P. Dutta, S. Marahatta, and B. Shrestha Material Type: printed text Authors: A. Karki, Author ; B. Sapkota, Author ; P. Bist, Author ; K. Bista, Author ; J. P. Dutta, Author ; S. Marahatta, Author ; Basanta Shrestha, Author Publication Date: 2020 Article on page: 153-159 p. Languages : English (eng) Keywords: Growth, fruit yield, mulch Abstract: An experiment was done to evaluate the effect of mulching materials on growth and yield characters of cucumber (var:
Malini) under drip irrigation condition during February to May 2018 in Chitwan district, Nepal. The experiment was done
by using Randomized Complete Block Design (RCBD). Accordingly, four different mulching materials, viz. silver on
black polyethylene mulch, black polyethylene mulch, rice straw mulch, and rice husk mulch were used as treatments. Each
treatment was replicated four times. Un-mulched plot served as control. Mulching improved growth and yield characters
of cucumber. Plant height and number of leaves were significantly higher (p was used. Similarly, highest number of male (69.50) and female (33.50) flowers per plant were recorded in silver on black
polyethylene mulch used. Male flowers were minimum (29.80) in rice husk mulch used treatment whereas female flowers
were minimum (10.30) in the control treatment. Sex ratio was the highest (3.43) in control and it was lowest (1.81) for
rice husk mulch used treatment. Number of fruit per plant was significantly higher (p polyethylene mulch treatment. Likewise, longest fruit length (18.42 cm) was measured in silver on black polyethylene mulch
treatment whereas shortest (15.24 cm) length was measured in control. Yield of silver on black polyethylene mulch and
black polyethylene mulch was almost three-folds and two-folds to that of the control, respectively. B: C ratio shows the use
of silver on black polyethylene mulch and black polyethylene mulch economically more beneficial in cucumber production
with highest benefit. Findings of this experiment thus clearly suggest the benefit of using silver on black polyethylene mulch,
as well as black polyethylene mulch in cucumber cultivation compared to the other common mulching materials.Link for e-copy: https://afu.edu.np/sites/default/files/Mulching%20materials%20affect%20growth%20 [...]
in Journal of Agriculture and Forestry University > Volume 4 (2020) . - 153-159 p.[article] Mulching materials affect growth and yield characters of cucumber (Cucumis sativus cv. Malini) under drip irrigation condition in Chitwan, Nepal | A. Karki, B. Sapkota, P. Bist, K. Bista, J. P. Dutta, S. Marahatta, and B. Shrestha [printed text] / A. Karki, Author ; B. Sapkota, Author ; P. Bist, Author ; K. Bista, Author ; J. P. Dutta, Author ; S. Marahatta, Author ; Basanta Shrestha, Author . - 2020 . - 153-159 p.
Languages : English (eng)
in Journal of Agriculture and Forestry University > Volume 4 (2020) . - 153-159 p.
Keywords: Growth, fruit yield, mulch Abstract: An experiment was done to evaluate the effect of mulching materials on growth and yield characters of cucumber (var:
Malini) under drip irrigation condition during February to May 2018 in Chitwan district, Nepal. The experiment was done
by using Randomized Complete Block Design (RCBD). Accordingly, four different mulching materials, viz. silver on
black polyethylene mulch, black polyethylene mulch, rice straw mulch, and rice husk mulch were used as treatments. Each
treatment was replicated four times. Un-mulched plot served as control. Mulching improved growth and yield characters
of cucumber. Plant height and number of leaves were significantly higher (p was used. Similarly, highest number of male (69.50) and female (33.50) flowers per plant were recorded in silver on black
polyethylene mulch used. Male flowers were minimum (29.80) in rice husk mulch used treatment whereas female flowers
were minimum (10.30) in the control treatment. Sex ratio was the highest (3.43) in control and it was lowest (1.81) for
rice husk mulch used treatment. Number of fruit per plant was significantly higher (p polyethylene mulch treatment. Likewise, longest fruit length (18.42 cm) was measured in silver on black polyethylene mulch
treatment whereas shortest (15.24 cm) length was measured in control. Yield of silver on black polyethylene mulch and
black polyethylene mulch was almost three-folds and two-folds to that of the control, respectively. B: C ratio shows the use
of silver on black polyethylene mulch and black polyethylene mulch economically more beneficial in cucumber production
with highest benefit. Findings of this experiment thus clearly suggest the benefit of using silver on black polyethylene mulch,
as well as black polyethylene mulch in cucumber cultivation compared to the other common mulching materials.Link for e-copy: https://afu.edu.np/sites/default/files/Mulching%20materials%20affect%20growth%20 [...]
