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Journal articles on the topic 'Cocoyam yield'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Ayuk-Takem, J. A., and H. R. Chhedda. "Grain Yield Potential of Some Diverse Maize (Zea mays L.) Morphotypes Intercropped with Cocoyam (Xanthosoma sagittifolium)." Experimental Agriculture 21, no. 2 (1985): 145–52. http://dx.doi.org/10.1017/s0014479700012424.

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SUMMARYThree maize cultivars, BACOA, SAW and COCA, were evaluated when intercropped with cocoyams at a density of 50 000 maize plants and 10 000 cocoyam stands ha−1. BACOA which matures in 120 days, and SAW (130 days) transmitted significantly more light to the lower canopy than COCA, which has spreading leaves and matures in 150 days. Relative yields for BACOA, SAW and COCA in pure stands were 72, 100 and 85%, respectively, while those for cocoyams in BACOA/cocoyam, SAW/cocoyam and COCA/cocoyam mixtures were 82, 58 and 54%, respectively, showing that COCA significantly suppressed the yield of

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2

Udounang, Patrick, and Florence Umoh. "Performance Evaluation of Cocoyam-based Intercropping Systems to Different Rates of Fertilizers in Obio Akpa, South Eastern Nigeria." AKSU Journal of Agriculture and Food Sciences 8, no. 2 (2024): 52–71. http://dx.doi.org/10.61090/aksuja.2024.013.

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A field experiment was conducted at the Teaching and Research farm, Akwa Ibom State University Obio Akpa Campus during the 2021 and 2022 cropping seasons to assess the performance of cocoyam-based intercropping systems to different rates of organic and inorganic fertilizers. The experiment was a split-plot factorial laid out in a Randomized Complete Block Design with three replications. The treatments were six (6) rates of fertilizers (0kg/ha, NPK 200kg/ha, NPK 400kg/ha, Poultry Manure (PM) 2.5t/ha, PM 5.0t/ha, Mixture – NPK 200kg/ha + PM 2.5t/ha) and six (6) crop mixtures (Sole Cocoyam, Sole

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3

Iwuagwu, M. O., D. A. Okpara, and C. O. Muoneke. "Time of introducing component crop influences productivity of intercropping system." Ghana Journal of Agricultural Science 55, no. 2 (2020): 10–25. http://dx.doi.org/10.4314/gjas.v55i2.2.

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Field experiment was conducted at National Horticultural Research Institute (NIHORT), Mbato Sub-station, Okigwe, Imo State, South-eastern Nigeria in the 2012 and 2013 cropping seasons to establish the most appropriate time to introduce component crops in cocoyam/cowpea mixture. Five different planting schemes (two and four weeks before, two and four weeks after and same day) and two cowpea genotypes (climbing Akidienu and erect IT97K-499-35) were used. The component crops were grown in monocultures to assess the productivity of the systems. The experimental design used was a completely randomi

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4

D., V. Adegunloye, and O. Udenze D. "Effect of Fermentation on Production of Bioethanol from Peels of Cocoyam Using Aspergillus niger and Saccharomyces cerevisiae." Journal of Advances in Microbiology 4, no. 2 (2017): 1–8. https://doi.org/10.9734/JAMB/2017/34032.

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Bioethanol is an alternative to fossil fuel and it’s produced by fermentation of sugar components of plant materials. The effect of fermentation on production of bioethanol from peels of cocoyam using sequential mono-cultures and co-cultures of <em>Aspergillus niger</em> and <em>Saccharomyces cerevisiae</em>. Standard methods were used to carry out isolation, identification and analysis of the samples. Sixty grams of cocoyam peels was dried and ground; and was subjected to heat pretreatment. Direct fermentation of cocoyam peels to ethanol by sequential monocultures and co-cultures of <em>Asper

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ADEKIYA, A. O., S. O. OJENIYI, and T. M. AGBEDE. "SOIL PHYSICAL AND CHEMICAL PROPERTIES AND COCOYAM YIELD UNDER DIFFERENT TILLAGE SYSTEMS IN A TROPICAL ALFISOL." Experimental Agriculture 47, no. 3 (2011): 477–88. http://dx.doi.org/10.1017/s001447971100041x.

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SUMMARYExperimental data on tillage requirement of cocoyam (Xanthosoma sagittifolium) are needed to identify the most suitable tillage methods for managing the fragile Alfisols of the humid tropics to ensure sustained productivity. Hence, five tillage methods were compared as to their effects on soil physical and chemical properties, and growth and yield of cocoyam on an Alfisol at Owo in the forest-savanna transition zone of southwest Nigeria. The experiment consisted of five tillage methods: manual clearing (MC), manual ridging (MR), manual mounding (MM), ploughing + harrowing (P + H) and pl

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6

Onoh Ikechukwu Maxwell, Anho Lawrence Oghenerivwe, and Egwuagu Onyekachi. "Study of the effect of process parameters on the yield of fermentable sugar from red cocoyam (Xanthosoma sagittifolium) peels via acid and enzyme hydrolysis." International Journal of Frontiers in Engineering and Technology Research 1, no. 1 (2021): 061–69. http://dx.doi.org/10.53294/ijfetr.2021.1.1.0047.

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The aim of this work is to study the acid and enzymatic hydrolysis of cocoyam peels using HCl, H2S04 acids and cellulase enzyme. The cellulase was secreted from Aspergillus Niger (A. niger) fungi. The proximate analysis of the substrate showed that cocoyam peel is a lignocellulosic biomass with a cellulose composition of 48%. The effect of the process parameters (time, temperature, acid concentration and pH) on the yield of glucose in acid and enzymatic hydrolysis of the cocoyam peel was respectively investigated. Maximum glucose yield of 44.5% was obtained after 3 days of enzymatic hydrolysis

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7

Godwin, O. CHUKWU, and Ugo MADU Tessy. "Soil Evangelization: Learning From School Cocoyam Project in Southeast Nigeria." Agriculture and Forestry Journal 4, no. 1 (2020): 32–39. https://doi.org/10.5281/zenodo.3837654.

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Soil evangelization, an awareness campaign to attract youths to study soil science and address soil fertility challenges to sustainable crop production was extended to two primary and two secondary schools, respectively, in Southeast Nigeria, participating in school cocoyam project (SCP), under the aegis of cocoyam re-birth initiative of the National Root Crops Research Institute, Umudike. The aim was to develop the capacity of the youths for soil fertility recapitalization and very rapid multiplication of cocoyam. The approach involved participatory result demonstration of Gocken Rapid Multip

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8

Ndidiamaka, Nwachukwu, Gladys, Idah, Peter A, Chukwu, Ogbonnaya, Isah, Kassem U., and Madu, Uchenna Onwuhaka. "Impact of Gamma Irradiation and Storage Time on the Sprouting of Cocoyam Corms." Asian Journal of Research in Crop Science 9, no. 4 (2024): 358–64. https://doi.org/10.9734/ajrcs/2024/v9i4325.

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Cocoyams are cultivated in Nigeria for their edible corms. Post harvest losses in cocoyam are attributed to its short sprouting time during storage. Planting of sprouted corms reduces the total yield leading to financial loss by the farmers. Colocasia esculenta (NCe 001 and NCe 011) and Xanthosoma sagittifolium (NXs 001 and NXs 002) Nigeria cultivars were subjected to gamma irradiation at doses of 20, 40, 80, 120 and 150Gy for one hour and stored. The effect of radiation dose and storage time on the sprouting of these cocoyam varieties was studied. Statistical analysis of the experimental resu

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9

Shiyam, J. O., J. C. Obiefuna, M. C. Ofoh, B. F. D. Oko, and A. E. Uko. "GROWTH AND CORM YIELD RESPONSE OF UPLAND COCOYAM (Xanthosoma sagittifolium L) TO SAWDUST MULCH AND N P K 20 : 10 : 10 FERTILIZER RATES IN THE HUMID FOREST ZONE OF NIGERIA." Continental J. Agronomy 1 (June 18, 2007): 5–10. https://doi.org/10.5281/zenodo.810442.

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Cocoyam(<em>Xanthosoma sagittifolium </em>(L) is the third ranking carbohydrate in Nigeria and is intensively cultivated and consumed by resource-poor farm families in Southeastern and Southwestern parts of the Country. The crop has high potential as a food security crop but yields are very low and adequate research attention is yet to be accorded the crop for increased productivity. This trial was aimed at developing a sustainable technology for increased productivity of the crop. A field trial was conducted in 2000/2001 and 2001/2002 cropping seasons at the Crop Research Farm of the Universi

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Agbede, Taiwo Michael, Aruna Olasekan Adekiya, Adeniyi Shadrack Odoja, Lucia Nike Bayode, Paul O. Omotehinse, and Imole Adepehin. "Effects of biochar and poultry manure on soil properties, growth, quality, and yield of cocoyam (Xanthosoma sagittifolium Schott) in degraded tropical sandy soil." Experimental Agriculture 56, no. 4 (2020): 528–43. http://dx.doi.org/10.1017/s0014479720000137.

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AbstractUse of biochar (B) and poultry manure (PM) as soil amendments can improve the productivity and sustainability of tropical agriculture. Our fieldwork is the first research on the agronomic use of B and PM for the growth of cocoyam in sandy soil of the humid tropics. In this study, the effects of B, PM and their mixture were investigated on soil properties, mineral and nutrient concentrations, growth, and corm and cormel yields of cocoyam during the 2017 and 2018 cropping seasons. The experiment consisted of 4 × 2 factorial combinations of B (0, 10, 20, and 30 Mg ha−1) and PM (0 and 7.5

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11

Shutt, Moses, Mwanja Pwajok, Affiah Unwana, and Edward Onkendi. "Occurrence of leaf blight of cocoyam (Colocasia esculenta) caused by Phytophthora colocasiae in Jos East L.G.A, Plateau State, Nigeria." African Phytosanitary Journal 3, no. 1 (2022): 25–37. http://dx.doi.org/10.52855/esea6165.

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Production of cocoyam (Colocasia esculenta) in Nigeria has declined in the last few years due to several constraints including poor yield of local cultivars worsened by the spread of Taro Leaf Blight (TLB). Accurate identification and control of the causative pathogen responsible for TLB is a promising option to reduce disease incidence and increase the yield of cocoyam. This study sought to profile occurrence and identity of fungi associated with TLB in Jos East LGA of Plateau State, Nigeria. Eleven farms were surveyed for disease incidence and sampling of infected leaves carried out. Katton

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12

Mary, Oluchi Iwuagwu, Aja Okpara Dominic, and Osita Muoneke Cosmos. "Growth and Yield Responses of Cocoyam (Colocasia esculenta (L.) Schott) to Organic Wastes in the Humid Agro-Ecological Zone of South-Eastern Nigeria." International Journal of Plant & Soil Science 16, no. 6 (2017): 1–11. https://doi.org/10.9734/IJPSS/2017/32517.

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<strong>Aim: </strong>To evaluate the growth and yield responses of cocoyam to different rates of application of cow dung and rice husk. <strong>Study Design:</strong> 2 x 4 factorial arrangement in a randomized complete block design replicated three times. <strong>Place and Duration of Study:</strong> The experiment was conducted in National Horticultural Research Institute (NIHORT), Mbato sub Station, Okigwe, Imo State, Nigeria in 2012 and 2013 cropping seasons. <strong>Methodology:</strong> The treatments comprised of two manure sources (cow dung and rice husk) at four levels (0, 10, 20 and

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13

David, Timon, J. Isaac S, Batta K, et al. "THE RESPONSE OF COCOYAM (Colocasia esculentus (L). Schott) TO MIXTURE OF ORGANIC AND INORGANIC FERTILIZERS IN MUBI, ADAMAWA STATE NIGERIA." GPH-International Journal of Agriculture and Research 04, no. 07 (2022): 01–14. https://doi.org/10.5281/zenodo.6860028.

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A field experiment was conducted at the Adamawa State University, Faculty of Agriculture Department of Crop Science Teaching and Research farm during the 2019 rainy season. To evaluate response of cocoyam (<em>Colocasia esculentus</em>(L). Schott) to mixture of organic and inorganic fertilizers, with the objective of selecting the best fertilizer mixture that can enhance the growth and yield of cocoyam. The experiments consisted of the following treatments T<sub>1 </sub>= 504 kg ha<sup>-1</sup> cow dung, T<sub>2</sub> = 227.65 kg ha<sup>-1</sup> poultry droppings, T<sub>3</sub> = 210.15 kg ha<

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14

Paul, KK, and MA Bari. "Estimates of Genetic Components for Yield and Related Traits in Cocoyam." Agriculturists 10, no. 2 (2012): 127–32. http://dx.doi.org/10.3329/agric.v10i2.13150.

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In the present investigation attempts were made to estimate genetic parameters for yield and its components in 315 genotypes of cocoyam collected from thirteen aroid growing districts. Plant height, petiole length, petiole breadth, leaf number, leaf length, leaf breadth, LAI, Inflorescence length, peduncle length, spathe length, spathe breadth, corm length, corm breadth, cormel number, cormel length, cormel breadth, corm weight, cormel weight, total fresh weight, total dry weight, yield per plant were taken in this study. Presence of significant differences together with wide ranges of variati

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15

Adekiya, Aruna Olasekan, Taiwo Michael Agbede, Adeniyi Olayanju, et al. "Effect of Biochar on Soil Properties, Soil Loss, and Cocoyam Yield on a Tropical Sandy Loam Alfisol." Scientific World Journal 2020 (February 25, 2020): 1–9. http://dx.doi.org/10.1155/2020/9391630.

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Among agricultural soil amendment that can enhance crop productivity and soil sustainability is biochar. Hence, two-year field experiments were conducted on a sandy loam Alfisol at Owo, southwest Nigeria, to evaluate the effects of biochar produced from hardwood on soil physical and chemical characteristics, erosion potential, and cocoyam (Xanthosoma sagittifolium (L.) Schott) yield. The study was a 2 × 4 factorial experiment with two years (2017 and 2018) and four biochar levels (0 (control), 10, 20, and 30 t ha−1). The treatments were laid out in a randomized complete block design with three

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16

Tajudeen, Ogunkunle, Oshagbemi H. O., Gidado R. S. M., and Adenika O. F. Aruleba R. D. "Comparative Assessment of Yield Performance of Neglected Cocoyam (Colocasia esculeta (L.) Schott) Parts as Planting Materials in the South Western Nigeria." Academic Journal of Life Sciences, no. 55 (May 20, 2019): 32–37. http://dx.doi.org/10.32861/ajls.55.32.37.

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Hitherto, there is scarcity of information on the usefulness of neglected small corms and cormels of cocoyam in the South West Nigeria. A 9 (nine) months trial was conducted to compare the growth and yield performance of different types of cocoyam planting materials with treatment consisting of T1; sprouted small cocoyam cormels, T2, trimmed out lower parts of harvested cocoyam corm and T3; moderate sized corm of 50-100g (control) arranged in a Randomised Complete Block Design (RCBD) with three replicates. Data on the number of leaves and plant height was taking at 4 week interval for 24 weeks

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17

AGBEDE, T. "Nutrient availability and cocoyam yield under different tillage practices." Soil and Tillage Research 99, no. 1 (2008): 49–57. http://dx.doi.org/10.1016/j.still.2007.12.003.

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18

ADEKIYA, ARUNA O., TAIWO M. AGBEDE, and STEPHEN O. OJENIYI. "THE EFFECT OF THREE YEARS OF TILLAGE AND POULTRY MANURE APPLICATION ON SOIL AND PLANT NUTRIENT COMPOSITION, GROWTH AND YIELD OF COCOYAM." Experimental Agriculture 52, no. 3 (2015): 466–76. http://dx.doi.org/10.1017/s0014479715000253.

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SUMMARYTillage and use of organic manure are important agronomic practices that sustain high crop and soil productivity. Hence, a three-year (2007 to 2009) study was conducted to evaluate the effect of site, tillage and poultry manure (PM) treatments on soil and plant nutrients composition, growth and yield of cocoyam (Xanthosoma sagittifolium). The study was a 2 × 5 × 5 factorial experiment with two sites (Owo – site 1 and Obasooto – site 2), five tillage methods; manual clearing (MC), manual ridging (MR), manual mounding (MM), ploughing plus harrowing (P+H) and ploughing plus harrowing twice

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19

Krisbianto, O., and H. Minantyo. "Physicochemical characteristics of tannia cocoyam (Xanthosoma sagittifolium) corm flour compared to flours and starches of other grains and tubers." Food Research 8, no. 3 (2024): 54–61. http://dx.doi.org/10.26656/fr.2017.8(3).226.

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Tannia cocoyam corm is a less popular pantropical carbohydrate source, whereas it has the potential to support food and nutrition security, especially in dry areas. Processing tannia cocoyam corm into flour can increase its use in various food products. This study aimed to determine the yield, nutrition, color, tap bulk density, water absorption capacity (WAC), oil absorption capacity (OAC), swelling capacity, and emulsion activity and stability of tannia cocoyam corm flour compared to sago starch, cassava flour and starch, mung bean starch, corn starch, wheat flour, rice and glutinous rice fl

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20

Yussuf, S. T., A. A. Ibikunle, N. O. Sanyaolu, et al. "Preparation, functional and pasting behavior of starch phosphates of red cocoyam (Colocosia esculenta) and white cocoyam (Colocosia antiquorum): a comparative study." Scientia Africana 21, no. 3 (2023): 133–44. http://dx.doi.org/10.4314/sa.v21i3.11.

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A contemporary strategy in the starch industries is the diversification of raw materials. However, the hydrophilic nature of starch limits its use as a raw material for food and packaging products, resulting in a low level of biodegradation. To address this issue, it is imperative that starch be chemically modified. Starch phosphates are among the most common and commonly used chemically modified starches. In this study, native red cocoyam starch (NRCS) and native white cocoyam starch (NWCS) were chemically modified with di-sodium hydrogen orthophosphate as phosphorylating agent to produce red

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21

Paul, KK, and MA Bari. "Correlation and path coefficient studies of Cocoyam (Xanthosoma sagittifolium L.)." Bangladesh Journal of Scientific and Industrial Research 50, no. 1 (2015): 47–52. http://dx.doi.org/10.3329/bjsir.v50i1.23809.

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Plant height, leaf length, leaf breadth, leaf number, leaf area index, corm length, corm breadth, corm weight, sucker number exhibited positive correlation with yield per plant in both genotypic and phenotypic level in cocoyam (Xanthosoma sagittifolium). Path coefficient analysis revealed that leaf length, leaf number, corm length exhibited direct influences to yield per plant. In genotypic level yield per plant showed the highest positive direct effect with corm length followed by cormel breadth, sucker number.Bangladesh J. Sci. Ind. Res. 50(1), 47-52, 2015

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22

Akinrinola, Tajudeen Bamidele, and Hassan Tijani-Eniola. "The growth and yield of cocoyam (Colocasia esculenta (L.) Schott) as affected by storage methods." Revista Facultad Nacional de Agronomía Medellín 78, no. 1 (2025): 11047–56. https://doi.org/10.15446/rfnam.v78n1.111202.

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Cocoyam (taro) (Colocasia esculenta) is an important tropical crop that requires minimal inputs compared to yam. However, increasing its production to meet the growing population’s food demand is hindered by the susceptibility of planting materials to rotting in the field before the next season. While reports on storage conditions for cocoyam cormels are available, information on the storage of corms (propagules) remains limited. Hence, this study assessed simple storage methods and the field performances of corms stored under these methods at the Ayepe research field of the University of Ibad

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23

Lopulalan, Cynthia G. C., Djagal W. Marseno, Yustinus Marsono, and Yudi Pranoto. "Karakteristik Fisik dan Fungsional Pati Keladi (Xanthosoma sagittifolium) dari Beberapa Lokasi di Maluku." AGRITEKNO: Jurnal Teknologi Pertanian 10, no. 1 (2021): 17–23. http://dx.doi.org/10.30598/jagritekno.2021.10.1.17.

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This study aimed to characterize the physical and functional properties of cocoyam starch from several locations in Maluku. The use of starch in the processed food and non-food industries will be determined by its various characteristics depending on the starch source. It is expected from this research that data can be used to assess the potential of cocoyam starch in its use in the food and non-food industries. Cocoyam tubers from Maluku, i.e. Buru Island, Saparua Island, and Saumlaki Island were used as samples in this research.. The wet extraction method was used to produce cocoyam starch i

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24

Dibog, L., P. Eggleton, L. Norgrove, D. E. Bignell, and S. Hauser. "Impacts of canopy cover on soil termite assemblages in an agrisilvicultural system in southern Cameroon." Bulletin of Entomological Research 89, no. 2 (1999): 125–32. http://dx.doi.org/10.1017/s0007485399000206.

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AbstractTermites were sampled using randomized soil pits in 64 cropping plots, each 25 x 25 m, forming an experimental agrisilvicultural system in both a 6- and an 18-year-old Terminalia ivorensis plantation, in which canopy cover, crop, cropping system and land preparation were the principal treatment variables. The treatments were established in April 1995 and sampling was carried out in November 1995, February 1996 and July 1996. A total of 82 termite species were found, of which 67 were soil-feeders. Overall termite abundance and the abundance of soil-feeders increased between November 199

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25

Foster, S. P., C. M. Woodcock, M. S. Williamson, A. L. Devonshire, I. Denholm, and R. Thompson. "Reduced alarm response by peach–potato aphids, Myzus persicae (Hemiptera: Aphididae), with knock-down resistance to insecticides (kdr)may impose a fitness cost through increased vulnerability to natural enemies." Bulletin of Entomological Research 89, no. 2 (1999): 133–38. http://dx.doi.org/10.1017/s0007485399000218.

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AbstractTermites were sampled using randomized soil pits in 64 cropping plots, each 25 x 25 m, forming an experimental agrisilvicultural system in both a 6- and an 18-year-old Terminalia ivorensis plantation, in which canopy cover, crop, cropping system and land preparation were the principal treatment variables. The treatments were established in April 1995 and sampling was carried out in November 1995, February 1996 and July 1996. A total of 82 termite species were found, of which 67 were soil-feeders. Overall termite abundance and the abundance of soil-feeders increased between November 199

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26

Sangakkara, U. R. "Effects of Types and Duration of Weeds on Yield Parameters of Cocoyam (Xanthosoma saghtifolium)." Journal of Agronomy and Crop Science 169, no. 5 (1992): 330–35. http://dx.doi.org/10.1111/j.1439-037x.1992.tb01044.x.

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27

Okon, Utibe Mfon, Emmanuel Nuamah, Precious Peter Jonathan, Comfort Abel Essien, Zahidul Hasan Tushar, and Zahra Gardezi. "Effect of polysaccharide-coatings on the physicochemical properties and nutritional composition of deep-fried chicken breasts." North African Journal of Food and Nutrition Research 9, no. 19 (2025): 13–22. https://doi.org/10.51745/najfnr.9.19.13-22.

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Background: The consumption of deed-fried foods has been a topic of considerable debate in nutritional science due to its potential adverse effects on health. In this context, the method of coating deep-fried chicken breasts has garnered increasing attention. Aims: This study aimed to provide valuable insights into the effects of alternative plant-based coatings on the physicochemical and nutritional properties of deep-fried chicken breast, with the broader objective of promoting healthier food options for consumers. Materials and Methods: Pre-weighed, marinated chicken breast chunks were imme

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28

Adewumi, A. D., O. W. Olaniyi, and O. O. Adebayo. "COST-BENEFIT ANALYSIS OF SELECTED PRE-EMERGENCE HERBICIDES FOR WEED CONTROL IN COCOYAM (Xanthosoma sagittifolium L.) PRODUCTION." Open Journal of Agricultural Science (ISSN: 2734-214X) 5, no. 1 (2024): 1–9. http://dx.doi.org/10.52417/ojas.v5i1.538.

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Weed control being a very important operation in the production of cocoyam is costly, therefore, there is a need to evaluate the most economically viable method of weed control for the purpose of minimizing production cost to maximize profit. The experiment was conducted in 2018 at the Ido farm settlement in Ibadan, Oyo State. The experiment involved five pre-emergence herbicides (Diuron 3.2 kg a.i/ha, Indaziflam + Ixoxaflutole 300 g a.i/ha, Flumioxazin + Pyroxasulfone 0.32 kg a.i/ha, Sulfentrazone 600 g a.i/ha, S-Metolachlor + Atrazine 2.64 kg a.i/ha), weed free and weed check (control) laid

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29

Nwite, James Nte, Chima Njoku, and Mathew Okpani Alu. "Effects of slaughter house wastes on soil properties and cocoyam corm yield in Abakaliki, Nigeria." International Journal of Agricultural Resources, Governance and Ecology 15, no. 1 (2019): 77. http://dx.doi.org/10.1504/ijarge.2019.099806.

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30

Alu, Mathew Okpani, Chima Njoku, and James Nte Nwite. "Effects of slaughter house wastes on soil properties and cocoyam corm yield in Abakaliki, Nigeria." International Journal of Agricultural Resources, Governance and Ecology 15, no. 1 (2019): 77. http://dx.doi.org/10.1504/ijarge.2019.10021385.

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Opata, Patience Ifeyinwa, and Peter Ejimofor Ogbonna. "Storage profitability and effectiveness of storage methods in yield loss reduction in cocoyam in southeast Nigeria." African Journal of Agricultural Research 10, no. 49 (2015): 4496–504. http://dx.doi.org/10.5897/ajar2015.9756.

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32

Hotsonyame, G. K., and E. K. S. Ahiekpor. "PRELIMINARY STUDIES ON THE EFFECTS OF PLANTING PATTERN AND PLANT SPACING ON YIELD COCOYAM (XANTHOSOMA SAGITTIFOLIUM)." Acta Horticulturae, no. 380 (November 1994): 515. http://dx.doi.org/10.17660/actahortic.1994.380.90.

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DF, UWAH, UDOH AU, and IWO GA. "EFFECT OF ORGANIC AND MINERAL FERTILIZERS ON GROWTH AND YIELD OF COCOYAM (COLOCASIA ESCULENTA (L.) SCHOTT)." International Journal of Agriculture Sciences 3, no. 1 (2011): 33–38. http://dx.doi.org/10.9735/0975-3710.3.1.33-38.

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REYES, G., A. C. RÖNNBERG-WÄSTLJUNG, and M. NYMAN. "COMPARISON OF FIELD PERFORMANCE BETWEEN DASHEEN MOSAIC VIRUS-FREE AND VIRUS-INFECTED IN VITRO PLANTS OF COCOYAM (XANTHOSOMA SPP.) IN NICARAGUA." Experimental Agriculture 42, no. 3 (2006): 301–10. http://dx.doi.org/10.1017/s0014479706003590.

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Cocoyam (Xanthosoma spp.) is the most important export crop of all the root and tuber crops grown in Nicaragua. Despite its importance, the total planted area and yield have significantly decreased during the past few years, a decrease that is mainly due to diseases that are disseminated through the planting material. In this study virus-free (NI) and virus-infected (I) in vitro plants from three genotypes were established in a non-traditional production area. The aim was to evaluate their agronomic performance, and to study the re-infection of dasheen mosaic virus (DsMV) and its effect on yie

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Ndah, Njoh Roland, Paul Nanje Ekole, Mbah Harry Agwa, Julie Taku, Celestine Fonyikeh-Bomboh Lucha, and David Tavi Agbor. "Crop Diversification and Sustainability in a Cocoa Agroforestry System in Meme Division South West Region, Cameroon." Asian Journal of Research in Agriculture and Forestry 9, no. 2 (2023): 1–15. http://dx.doi.org/10.9734/ajraf/2023/v9i2196.

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The diversification of crops and trees in cocoa agroforestry plays a major role in ecosystem goods and services. This study investigated the effects of crop diversification in a cocoa agroforestry farms. The study is aimed at identifying crops, crops preference and profitability in a cocoa agroforestry. Primary data were collected with the use of structured questionnaires and field observations. A sample size of 118 respondents was identified for the study. Forty (40) farmers each were interviewed in Matoh and Bole while 38 farmers interviewed in Njombe Mbonge. The data were analyzed using IBM

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Nwite, J., C. Keke, and P. Okereke. "Integrated Nutrient Management; Option for Improvement on Soil Chemical Properties, Growth and Yield of Cocoyam (Colocasia esculenta)." Annual Research & Review in Biology 10, no. 4 (2016): 1–12. http://dx.doi.org/10.9734/arrb/2016/25739.

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Asumadu, H., E. L. Omenyo, and F. Tetteh. "Physiological and Economic Implications of Leaf Harvesting on Vegetative Growth and Cormel Yield of Cocoyam (Xanthosoma sagittifolium)." Journal of Agronomy 10, no. 4 (2011): 112–17. http://dx.doi.org/10.3923/ja.2011.112.117.

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Kalio, G. A., L. N. Agunwobi, A. A. Ayuk, and C. A. Eneji. "Availability and estimation of crop by-product yields for small ruminant production in Cross River State, Nigeria." Nigerian Journal of Animal Production 40, no. 1 (2020): 117–22. http://dx.doi.org/10.51791/njap.v40i1.669.

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A study was carried out in some Local Government Areas of Cross River State of Nigeria to identify and ascertain the availability, level of production and the yields of crop by-products derived from commonly cultivated crops that can serve as feed for small ruminants. The results show that the various staple crops commonly grown in Cross River State produce the following crop by-products in a decreasing order of yields- cassava peels> yam peels> corn cobs> maize sheaths> plantain peels> maize offal> rice offal> cassava sievets> banana peels> fried garri sievets> g

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Omotayo, F. S., M. O. Lasisi, and S. A. Ogundare. "Climate Yield Models for Some Arable Crops in Ondo State." International Journal of Research and Innovation in Social Science VIII, no. II (2024): 2123–32. http://dx.doi.org/10.47772/ijriss.2024.802150.

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This study looks at the connection between easily observed climate variables and crop production. Selected arable crops’ yield statistics spanning ten years were analyzed, including melon, rice, cassava, yam, and maize. Using multiple linear regression models calibrated for each of the selected crops, the crop yield was the dependent variable in SPSS statistical package version 22.0. The meteorological data, including mean temperature (oC), rainfall (mm), evaporation (mm/yr), and relative humidity (%), were correlated with the crop yield. Standard error of estimates (SE), coefficient of determ

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Opara, Emma, Theresa C. Njoku, and Chikodi Isaiah. "Potency of Some Plant Extracts and Pesticides on Bacterial Leaf Blight Diseases of Cocoyam (Colocasia Esculenta) in Umudike, South Eastern Nigeria." Greener Journal of Agricultural Sciences 3, no. 5 (2013): 312–19. https://doi.org/10.15580/GJAS.2013.5.022013484.

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A pot trial was conducted in 2010 and 2011 cropping seasons at the screen house of Michael Okpara University of Agriculture, Umudike to determine the potency of some plant extracts and pesticides for the control of bacterial leaf blight of cocoyam <em>(Colocasia esculenta</em> L.) Scholt<em>.</em> The materials employed include: lemon grass (<em>Cymbopogon citrates).</em> Black pepper seed (<em>Piper guineense</em>), orange peel (<em>Citrus sinesis</em>), streptomycin sulphate (antibiotic), copper oxychloride (fungicide) and sterile water (control). The experiment was laid

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Ekiyor, T. H., I. T. Horsfall, A. I. Kalagbor, and B. A. Egbara-Dedua. "Evaluating the Effects of Air Pollution on the Agricultural Yield of Selected Crops in Eleme, Nigeria." Journal of Applied Sciences and Environmental Management 23, no. 10 (2019): 1771–78. http://dx.doi.org/10.4314/jasem.v23i10.1.

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This study evaluated the effects of air pollution on agriculture in Eleme, Rivers State, Niger Delta, Nigeria. The air quality in selected locations in Eleme were monitored, as well as crop pathology and laboratory analysis of crops. Although, small-scale subsistence agriculture is the most common farming system practiced in the area. Cassava, pumpkins, plantains, maize and yams are the dominant crops found on the farmlands. It was observed that concentration of sulphur dioxide (SO2), nitrogen oxides (NOx), ozone (O3) and exceeded the USEPA standards for the protection of crops significantly.

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P, E. Ogbonna, and J. Nweze N. "Evaluation of growth and yield responses of cocoyam (Colocasia esculenta) cultivars to rates of NPK 15:15:15 fertilizer." African Journal of Agricultural Research 7, no. 49 (2012): 6553–61. http://dx.doi.org/10.5897/ajar12.553.

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Mary, Oluchi Iwuagwu, Aja Okpara Dominic, Osita Muoneke Cosmas, and Augustina Ukaoma Adanma. "Organic and mineral fertilizer effects on growth and yield of cocoyam in a tropical Ultisol in South Eastern Nigeria." Journal of Plant Breeding and Crop Science 8, no. 10 (2016): 175–81. http://dx.doi.org/10.5897/jpbcs2016.0583.

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Adekiya, AO, SO Ojeniyi, and TM Agbede. "Response of leaf nutrient content, growth and corm yield of cocoyam (Xanthosoma sagittifolium Schott) to tillage and poultry manure." Journal of Agricultural Research and Development 14, no. 1 (2016): 1. http://dx.doi.org/10.4314/jard.v14i1.1.

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Joseph, M. IBBIH, and Akudo NWOGU Jorji. "Impact of Crop Production on Economic Growth in Nigeria, 1981 – 2018." International Journal of Social Science and Education Research Studies 04, no. 05 (2024): 348–60. https://doi.org/10.5281/zenodo.11174367.

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Abstract : This study examined the impact of crop production on economic growth in Nigeria utilizing annual time series data from 1981 to 2018. The study used Johansen cointegration test, Vector Error Correction test, the impulse response functions and variance decomposition for data analysis after the data series were checked against unit root problem using the Augmented Dickey Fuller unit root test. The study tested and found that increase in the production of cassava, cocoyam, groundnut, guinea corn, maize, millet, rice and yam spurs economic growth in Nigeria in the long-run except for cot

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Agbede, T., and J. Ogundele. "Effect of Tillage Systems and Tithonia diversifolia Mulch on Soil Physical and Chemical Properties, Growth and Cocoyam Yield in a Tropical Alfisol." British Journal of Applied Science & Technology 7, no. 5 (2015): 483–95. http://dx.doi.org/10.9734/bjast/2015/14837.

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Adekiya, Aruna O., and Taiwo M. Agbede. "The Influence of Three Years of Tillage and Poultry Manure Application on Soil and Leaf Nutrient Status, Growth and Yield of Cocoyam." Journal of Advanced Agricultural Technologies 3, no. 2 (2016): 104–9. http://dx.doi.org/10.18178/joaat.3.2.104-109.

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Hota, Rajeswari, Alok Kumar Jena, and K. Lakshmi Narayana. "Effect of Inorganic and Organic Amendments on Yield of Cocoyam (Colocasia esculenta), and on Soil Properties." World Journal of Agricultural Research 2, no. 2 (2014): 70–81. http://dx.doi.org/10.12691/wjar-2-2-7.

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Agbede, T. M., A. S. Odoja, L. N. Bayode, P. O. Omotehinse, and I. Adepehin. "Effects of biochar and poultry manure on soil properties, growth, yield and quality of cocoyam (Xanthosoma sagittifolium Schott) grown in sandy soil." Communications in Soil Science and Plant Analysis 51, no. 7 (2020): 932–47. http://dx.doi.org/10.1080/00103624.2020.1744621.

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Anikwe, M. A. N., C. N. Mbah, P. I. Ezeaku, and V. N. Onyia. "Tillage and plastic mulch effects on soil properties and growth and yield of cocoyam (Colocasia esculenta) on an ultisol in southeastern Nigeria." Soil and Tillage Research 93, no. 2 (2007): 264–72. http://dx.doi.org/10.1016/j.still.2006.04.007.

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