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  • 1
    Online Resource
    Online Resource
    Does potato seed system working effectively in Nepal?
    Nepal Journals Online (JOL) ; 2023
    In:  Nepal Agriculture Research Journal Vol. 15, No. 1 ( 2023-02-01), p. 1-19
    Details
    In: Nepal Agriculture Research Journal, Nepal Journals Online (JOL), Vol. 15, No. 1 ( 2023-02-01), p. 1-19
    Abstract: The present study analyses the gaps and issues in the production and distribution system of potato seeds in Nepal. Households’ survey combined with focus group discussions (FGDs) and key informant interviews (KII) were carried out to collect the information. Gross benefit and descriptive statistics were employed for the analysis of the data. Results revealed that National Potato Research Program (NPRP) and some private companies were responsible for the zero generation Pre-Basic Seeds (PBS) production. National Centre for Potato, Vegetables and Spice Crops Development Program (NCPVSCDP) collects the seed demand and helps in potato seed certification at the farmers’ level. The current production is inadequate to meet the demand. As the present potato productivity is 16.72 mt ha-1 which is less than projected by National Seed Vision (NSV), reducing the yield gap is one of the important ways to meet the demand. The Gross benefit per hectare of first-generation basic potato seed (BS1) was NRs 14, 66,667 ($ 12,759) and second-generation basic potato seed (BS2) was NRs 9, 20, 667 ($ 8,009). However, the potato seed system is not working effectively in Nepal. Therefore, the adoption of improved potato varieties should be extensive through a strong mechanism for maintaining the full seed cycle and its proper distribution. Further, it is equally important to change the perception of farmers by showing the comparative benefit of growing ware potato and seed potato.
    Type of Medium: Online Resource
    ISSN: 1029-533X
    URL: Article
    DOI: 10.3126/narj.v15i1.51015
    Language: Unknown
    Publisher: Nepal Journals Online (JOL)
    Publication Date: 2023
    detail.hit.zdb_id: 2867698-1
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  • 2
    Online Resource
    Online Resource
    Potato Seed System in Nepal
    Elsevier BV ; 2021
    In:  SSRN Electronic Journal
    Details
    In: SSRN Electronic Journal, Elsevier BV
    Type of Medium: Online Resource
    ISSN: 1556-5068
    URL: Article
    DOI: 10.2139/ssrn.3978992
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2021
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  • 3
    Online Resource
    Online Resource
    Bung: A traditional practice of potato cultivation in eastern hills of Nepal
    Nepal Journals Online (JOL) ; 2020
    In:  Journal of Agriculture and Natural Resources Vol. 3, No. 1 ( 2020-01-01), p. 38-50
    Details
    In: Journal of Agriculture and Natural Resources, Nepal Journals Online (JOL), Vol. 3, No. 1 ( 2020-01-01), p. 38-50
    Abstract: Eastern hill region is one of the high potato producing areas of potato in Nepal. There are many traditional potato production systems existing in the region. Among them, 'Bung' and 'Lhose' are very popular systems. There are some under-proven views of naming to this unique cultivation practice. Field observations, key informants' interview, and group discussion were carried out at three sites of Okhaldhunga and Solukhumbu districts in July 2019 to explore the basic information on the bung system. The results of this investigation revealed that the century-old practice utilized marginal sloppy lands of mountains for cultivation of potatoes. Farmers left land fallow for 4-5 years to grow weeds and herbs. Thereafter, they slashed them with a thin layer of soil, stacked them over winter, burned and mixed with the soil making a raised pit. They planted 15-25 potato seed tubers into these pits depending upon the pit size. No additional fertilizer is added to these pits. No intercultural operations are carried out until harvesting. It was explained that the yield of potato from the bung was significantly higher   15-20 kg)  than that of general local practice called lhose system (5-7 kg) from the area equivalent to Bung . Some interventions such as high yielding varieties, easy-to-handle equipment for bung preparation and introduction of fast-growing non-hazardous weeds, etc. were the demands of the farmers to increase profit from the bung system.
    Type of Medium: Online Resource
    ISSN: 2661-6289 , 2661-6270
    URL: Article
    DOI: 10.3126/janr.v3i1.27004
    Language: Unknown
    Publisher: Nepal Journals Online (JOL)
    Publication Date: 2020
    detail.hit.zdb_id: 2963534-2
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  • 4
    Online Resource
    Online Resource
    RESPONSE OF POTATO (SOLANUM TUBEROSUM L.) TO THE APPLICATION RATES OF BIOCHAR AND NUMBER OF IRRIGATIONS
    ZIbeline International Publishing ; 2020
    In:  Tropical Agrobiodiversity Vol. 1, No. 1 ( 2020-07-24), p. 37-41
    Details
    In: Tropical Agrobiodiversity, ZIbeline International Publishing, Vol. 1, No. 1 ( 2020-07-24), p. 37-41
    Abstract: A split-plot experiment was conducted to determine the response of potato to application rate of biochar (0, 2, 4 and 6 t/ha , main plots) and number of irrigations (once, twice and thrice a month, sub-plots) in 3 replications as a pot trial in a screen house at Khumaltar during winter season of 2018 and 2019. Biochar was produced from Lantana camara by semi-pyrolysed technique in a Kon Tiki drum. Plastic pots with 26 cm of diameter were used to meet the 25 cm plant spacing of potato recommended in Nepal. The early maturing (90 days) released variety ‘Desiree’ was used for the trial. Observations were recorded on plant and tuber attributes. The results revealed that the influence of biochar rates was positive over zero biochar on plant height, root fresh weight, root dry weight, stem fresh weight and tuber dry weight. The effect of biochar @ 2/ha had similar effects to the rates of 4 t/ha and 6 t/ha rates. Irrigation treatments were significantly different for plant height, number of tubers per plant, root fresh weight, stem and leaf fresh weight, tuber fresh weight, root dry weight and tuber dry weight. Among the irrigation schedules, irrigating twice and thrice a month had similar effects but they were different from one irrigation. Interactions of biochar @ 2 t/ha with one, two or three irrigations were superior to the interactions of biochar @ 0 t/ha with one and two irrigations for tuber dry weight and total dry weight.
    Type of Medium: Online Resource
    ISSN: 2716-7046
    URL: Article
    DOI: 10.26480/trab.01.2020.37.41
    Language: Unknown
    Publisher: ZIbeline International Publishing
    Publication Date: 2020
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  • 5
    Online Resource
    Online Resource
    Evaluation for Released and Promising Genotypes of Potato against Red Ant
    Nepal Journals Online (JOL) ; 2019
    In:  Journal of Nepal Agricultural Research Council Vol. 5 ( 2019-04-28), p. 81-87
    Details
    In: Journal of Nepal Agricultural Research Council, Nepal Journals Online (JOL), Vol. 5 ( 2019-04-28), p. 81-87
    Abstract: Red ant is the most destructive insect pest of potato tubers in the field. Utilization of varietal resistance is the best option to control the pest. The resistance of five released and nine promising genotypes of potato were evaluated against red ant (Dorylus orientalis Westwood) under natural infestation in red ant prone field. Potato resistance was evaluated based on tuber damage index value (0.00 to 1) which was calculated on the bases of the percentage of damaged tubers and number of injuries on per kilogram of tubers made by the pest. Based on the results of combined data, the levels of varietal damage were categorized to be less damaged (TDI value ranging from 0.35 to 0.49), moderately damaged (TDI value ranging from 0.50to 0.64) and highly damaged (TDI value ranging from 0.65 to 0.79) types. Among the 14 genotypes compared for levels of tuber damage, the fivegenotypes: IPY-8 (TDI value: 0.35), Khumal Seto (TDI value: 0.39), PRP-056267.1 (TDI value: 0.40), Janak Dev (TDI value: 0.44) and PRP-25861.1 (TDI value: 0.49) were determined to be the less damaged types. The less damaged potato genotypes can be used by farmers as the relatively resistant genotypes against red ant.
    Type of Medium: Online Resource
    ISSN: 2392-4543 , 2392-4535
    URL: Article
    DOI: 10.3126/jnarc.v5i1.23812
    Language: Unknown
    Publisher: Nepal Journals Online (JOL)
    Publication Date: 2019
    detail.hit.zdb_id: 2867761-4
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  • 6
    Online Resource
    Online Resource
    Evaluation of Potato Genotypes under High Hill Conditions of Nepal
    Sciencedomain International ; 2023
    In:  Asian Journal of Agricultural and Horticultural Research Vol. 10, No. 4 ( 2023-04-19), p. 1-8
    Details
    In: Asian Journal of Agricultural and Horticultural Research, Sciencedomain International, Vol. 10, No. 4 ( 2023-04-19), p. 1-8
    Abstract: Coordinated Varietal Trial (CVT) on different genotypes of potato received from National Potato Research Program (NPRP), Khumaltar, Lalitpur was carried out at Horticultural Research Station, Rajikot, Jumla at an altitude of 2396 m above mean sea level during two consecutive years 2019 and 2020 to evaluate potato genotypes suitable for the high hills of Karnali province of Nepal. Nine different potato genotypes with two checks i.e. Desiree and Jumli Local were tested on Randomized Complete Block Design (RCBD). Each treatment was replicated four times. Compost was used at the rate of 20 tons per hectare. There was no use of chemical fertilizer. Well sprouted tubers of 25-50 g were planted with 60cm x 25cm spacing. The effects of different genotypes were recorded for both vegetative as well as yield parameters. Tested genotypes differed significantly for vegetative (emergence percentage at 30 days after planting & 45 days after planting, uniformity, ground coverage, plant height, number of main stems) as well as yield parameters (total number of tubers and tuber yield per ha). The highest tuber yield (20.9 t/ha) was harvested from CIP 392797.22. Result of consecutive years showed that potato genotype CIP 392797.22 is suitable for cultivation in high hills of Karnali province for food as well as nutritional security.
    Type of Medium: Online Resource
    ISSN: 2581-4478
    URL: Article
    DOI: 10.9734/ajahr/2023/v10i4239
    Language: Unknown
    Publisher: Sciencedomain International
    Publication Date: 2023
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  • 7
    Online Resource
    Online Resource
    On-farm Evaluation of Potato Genotypes at High Hills of Karnali Province, Nepal
    Sciencedomain International ; 2023
    In:  Journal of Agriculture and Ecology Research International Vol. 24, No. 4 ( 2023-04-12), p. 22-32
    Details
    In: Journal of Agriculture and Ecology Research International, Sciencedomain International, Vol. 24, No. 4 ( 2023-04-12), p. 22-32
    Abstract: An on-farm varietal trial was carried out to evaluate promising genotypes of potatoes received from the National Potato Research Program (NPRP), Khumaltar at Urthuchautara settlement of Patrashi Rural Municipality of Jumla, Nepal at an altitude of 2430 meters above mean sea level during two consecutive years 2019 and 2020. Four promising potato genotypes: PRP 226567.2, PRP 136769.1, CIP 395077.242, CIP 393617.1 and two check cultivars i.e. Desiree and Jumli Local were tested in Randomized Complete Block Design (RCBD). Each treatment was replicated four times. Compost was used at the rate of 20 tons per hectare (t/ha) and there was no chemical fertilizer used. Well-sprouted tubers of 25-50 g were planted at 60cm x 25cm spacing. Observations were recorded on vegetative parameters as well as yield attributes. Among different parameters observed most all the vegetative as well as yield and yield attributing parameters were found significant among each other whereas emergence at 45 DAP and plant height during 2020 were found non-significant. The highest tuber yield (30.88 t/ha) was recorded in PRP 226567.2 followed by PRP 136769.1 (23.89 t/ha). Based on the average of two-year results, PRP 226567.2(30.88 t/ha) and PRP 136769.1 (23.89 t/ha) were superior for the purpose of variety recommendation for high hills of Karnali province.
    Type of Medium: Online Resource
    ISSN: 2394-1073
    URL: Article
    DOI: 10.9734/jaeri/2023/v24i4534
    Language: Unknown
    Publisher: Sciencedomain International
    Publication Date: 2023
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  • 8
    Online Resource
    Online Resource
    Performance of Potato Genotypes at Farmer’s Field in Jumla, Nepal
    Sciencedomain International ; 2023
    In:  Asian Research Journal of Agriculture Vol. 16, No. 1 ( 2023-03-24), p. 31-40
    Details
    In: Asian Research Journal of Agriculture, Sciencedomain International, Vol. 16, No. 1 ( 2023-03-24), p. 31-40
    Abstract: On-farm varietal trial was carried out to evaluate promising genotypes of potato received from International Potato Centre (CIP), Lima, Peru through National Potato Research Program (NPRP), Khumaltar at Guthichaur Rural Municipality in the high hills of Jumla during two consecutive years 2017 and 2018. Five promising potato genotypes and two check cultivars i.e. Desiree and Jumli Local were tested in Randomized Complete Block Design (RCBD). The treatments were replicated three times. Compost was used at the rate of 20 t/ha. Well sprouted tubers of 25-50 g were planted at 60cm x 25cm spacing. Observations were recorded on vegetative parameters and yield attributes. Tested genotypes differed significantly for emergence percentage at 30 days after planting, uniformity, ground coverage, plant height, number of main stems, total number of tubers and tuber yield per hectare. The highest tuber yield (26.14 t/ha) was recorded in CIP393073.179 followed by CIP 395112.32 (24.56 t/ha) and CIP 390478.9 (23.12 t/ha). The average results of both years showed that potato genotypes CIP393073.179, CIP 395112.32 and CIP 390478.9 were promising for commercial cultivation in Jumla and in the similar agro-ecological domains of Karnali province.
    Type of Medium: Online Resource
    ISSN: 2456-561X
    URL: Article
    DOI: 10.9734/arja/2023/v16i1380
    Language: Unknown
    Publisher: Sciencedomain International
    Publication Date: 2023
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  • 9
    Online Resource
    Online Resource
    Performance Evaluation of Nutrient Dense Potato Genotypes at High Hills of Karnali Province, Nepal
    Sciencedomain International ; 2023
    In:  Asian Journal of Advances in Agricultural Research Vol. 21, No. 2 ( 2023-03-15), p. 40-50
    Details
    In: Asian Journal of Advances in Agricultural Research, Sciencedomain International, Vol. 21, No. 2 ( 2023-03-15), p. 40-50
    Abstract: The trial was carried out to identify suitable potato genotypes for high hills of Karnali province of Nepal. The genotypes were received from International Potato Centre (CIP), Lima, Peru through National Potato Research Program (NPRP) and evaluated for two consecutive years 2017 and 2018 at Horticulture Research Station (HRS), Rajikot, Jumla, Nepal (2396 masl). Nine nutrient dense potato genotypes with two checks i.e. Desiree and Jumli Local in on-station trial were tested in Randomized Complete Block Design (RCBD) with three replications. Fertilizer was used at the rate of 100:100:60 kg NPK/ha and 20 t/ha compost. Well sprouted tubers of seed size (25-50 g) were planted at a spacing of 60cm x 25cm. The effects of different genotypes were recorded for both vegetative as well as yield parameters. There is a significant difference among tested genotypes for vegetative (emergence percentage at 30 days after planting & 45 days after planting, uniformity, ground coverage, plant height, number of main stems) as well as yield parameters (total number of tubers and tuber yield per ha). The highest tuber yield (46.93 t/ha) was recorded from genotype T 304351.109 followed by genotype T 304368.46 (41.46 t/ha) and genotype T 302498.7 (32.69 t/ha) among the nutrient dense potato genotypes. Similarly, late blight scoring was minimum (score 1) in all these three genotypes. The results of both years showed that potato genotypes T 304351.109, T 304368.46 and T 302498.7 are promising for cultivation in high hills of Karnali province to combat the malnutrition as well as ensure nutritional security.
    Type of Medium: Online Resource
    ISSN: 2456-8864
    URL: Article
    DOI: 10.9734/ajaar/2023/v21i2415
    Language: Unknown
    Publisher: Sciencedomain International
    Publication Date: 2023
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