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1

Samura, Alusaine, Jepson Kebbie, Vandi Amara, David Quee, and Joseph Musa. "Incidence, Severity, and Distribution of Cassava Bacteria Blight Disease in Sierra Leone." American Journal of Plant Biology 10, no. 1 (2025): 1–9. https://doi.org/10.11648/j.ajpb.20251001.11.

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Cassava Bacterial Blight Disease (CBBD) is a major constraint in cassava production, initially manifesting on the lower leaves as scattered, cigar-shaped, water-soaked lesions. This study aimed to evaluate cassava bacterial blight disease in Sierra Leone. A field trial was conducted at the School of Agriculture and Food Sciences research site to evaluate disease susceptibility of various cassava genotypes and identify elite genotypes for population improvement. The experiment followed an augmented randomized complete block design (ARCBD). Additionally, a farmer field survey was carried out acr
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2

Samura, Alusaine, Jepson Kebbie, Vandi Amara, David Quee, and Joseph Musa. "Incidence, Severity, and Distribution of Cassava Bacteria Blight Disease in Sierra Leone." American Journal of Plant Biology 10, no. 1 (2025): 1–9. https://doi.org/10.11648/j.ajpb.20241001.11.

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Cassava Bacterial Blight Disease (CBBD) is a major constraint in cassava production, initially manifesting on the lower leaves as scattered, cigar-shaped, water-soaked lesions. This study aimed to evaluate cassava bacterial blight disease in Sierra Leone. A field trial was conducted at the School of Agriculture and Food Sciences research site to evaluate disease susceptibility of various cassava genotypes and identify elite genotypes for population improvement. The experiment followed an augmented randomized complete block design (ARCBD). Additionally, a farmer field survey was carried out acr
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3

Aquiles, K. R., Eder Marques, J. V. Malaquias, et al. "Reaction of Sweet Cassava Genotypes to Xanthomonas phaseoli pv. manihotis From Three Regions of Brazil." Journal of Agricultural Science 13, no. 4 (2021): 64. http://dx.doi.org/10.5539/jas.v13n4p64.

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Xanthomonas phaseoli pv. manihotis (Xpm) is the causal agent of Cassava Bacterial Blight (CBB), one of the most important cassava diseases. The aim of this study was to evaluate the susceptibility of sweet cassava genotypes to strains of Xpm from three different geographic regions of Brazil in greenhouse conditions. The inoculation of 14 genotypes of cassava was made by cutting leaflets using scissors previously soaked in a bacterial suspension with 1 × 108 UFC ml-1 and also by inserting a soaked toothpick into the bud of the oldest leaf. The results showed significant differences wh
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4

Sam, Wamani, Opio Samuel Morris, Omara Tom, Ocitti Patrick, John Colvin, and Omongo Christopher Abu. "Resistance to Cassava Whitefly (Bemisia tabaci) among Eastern and Southern African Elite Cassava Genotypes." Insects 15, no. 4 (2024): 258. http://dx.doi.org/10.3390/insects15040258.

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Cassava whitefly, Bemisia tabaci, directly damages cassava leaves by feeding on phloem, causing chlorosis and abscission, leading to a yield loss of up to 50%. The pest also causes indirect damage through sooty mold formation. Most Ugandan cassava varieties resist cassava mosaic disease (CMD) and tolerate cassava brown streak disease (CBSD), but little is known about their response to whitefly infestation. The main objective of this study was to identify cassava genotypes with putative resistance to whitefly in Uganda. This was conducted on 24 improved cassava varieties in three agro-ecologica
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5

Kimno, Lydia Chepkoech, Miriam Gaceri Kinyua, Isaac Kofi Bimpong, and Javan Omondi Were. "Field Screening of Elite Cassava (Manihot esculenta) Mutant Lines for their Response to Mosaic and Brown Streak Viruses." Journal of Experimental Agriculture International 45, no. 9 (2023): 205–15. http://dx.doi.org/10.9734/jeai/2023/v45i92193.

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Cassava Brown Streak Disease (CBSD) and Cassava Mosaic Disease (CMD) have been major limiting biotic factors to the productivity of cassava farming in Kenya. Development of resistant cassava varieties is most effective way. The study was to determine response of elite cassava lines to CBSD and CMD under field conditions on different agro-ecological zones in Kenya. Screening was done under hot-spot field conditions where five lines together with their parents were evaluated in Randomized Complete Block Design with three replications at University of Eldoret (UoE), Solai and Marakwet sites in Ke
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6

Adjebeng-Danquah, Joseph, Kwabena Acheremu, Emmanuel Boache Chamba, et al. "Genotypic variability and genetic parameters for root yield, dry matter and related traits of cassava in the Guinea Savannah ecological zone of Ghana." Archives of Agriculture and Environmental Science 8, no. 3 (2023): 310–18. http://dx.doi.org/10.26832/24566632.2023.080306.

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The aim of this study was to assess the agronomic performance and genetic parameters governing storage root yield and related traits in cassava genotypes in order to identify superior genotypes. The study involved 18 elite cassava genotypes which were arranged in a randomized complete block design with three replications and assessed for storage root yield and yield components (12 months after planting) in the Guinea savannah ecology of Ghana for three seasons. Analysis of variance indicated significant (p < 0.05) genotype and year main effects for fresh and dry root yields, dry matter cont
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7

Hohenfeld, Camila Santiago, Adriana Rodrigues Passos, Hélio Wilson Lemos de Carvalho, Saulo Alves Santos de Oliveira, and Eder Jorge de Oliveira. "Genome-wide association study and selection for field resistance to cassava root rot disease and productive traits." PLOS ONE 17, no. 6 (2022): e0270020. http://dx.doi.org/10.1371/journal.pone.0270020.

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Cassava root rot disease is caused by a complex of soil-borne pathogens and has high economic impacts because it directly affects the tuberous roots, which are the main commercial product. This study aimed to evaluate cassava genotypes for resistance to root rot disease in a field with a previous history of high disease incidence. It also aimed to identify possible genomic regions associated with field resistance based on genome-wide association studies. A total of 148 genotypes from Embrapa Mandioca and Fruticultura were evaluated over two years, including improved materials and curated germp
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8

Sivan, Swathy, K. Arya, M. N. Sheela, B. S. Revathi, and P. V. Abhilash. "Principal Component Analysis and Clustering of Cassava Germplasm based on N and K Efficiency." International Journal of Bio-resource and Stress Management 14, Jan, 1 (2023): 094–100. http://dx.doi.org/10.23910/1.2023.3342.

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The present study was undertaken at ICAR-CTCRI, Sreekaryam to identify and group N and K efficient genotypes from a pool of released varieties, pre-breeding lines and elite landraces of cassava during 2021-2022. Thirty genotypes of cassava were evaluated for their diversity based on N and K efficiency along with some of its contributing plant characters using statistical tools like principal component analysis, and dendrogram clustering. The variation existing among the selected genotypes was observed through PCA, where the first six principal components accounted for nearly 81% of the total v
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9

Tugume, AK, and M. Buttibwa. "In vitro Culture of Heat-treated Anthers Induces Embryogenic Callus in Cassava (Manihot esculenta Crantz)." Journal of Plant Biochemistry & Physiology 8, no. 3 (2020): 7. https://doi.org/10.5281/zenodo.11929198.

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Microspore embryogenesis is the developmental plasticity of juvenile male gametophytes to switch from pollen to embryo development upon exposure to in vitro stress. It is a common method for obtaining haploid and doubled haploid plants in breeding programs for development of superior varieties via haploid-diploidization which allows fast development of homozygous lines from heterozygous parents. In cassava, obtaining haploidization through traditional methods of successive selfing is difficult because of cassava’s long reproductive cycle, high heterozygosity, and inbreeding depression. A
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10

Abaca, A., R. Kawuki, P. Tukamuhabw, et al. "Evaluation of Local and Elite Cassava Genotypes for Resistance to Cassava Brown Streak Disease in Uganda." Journal of Agronomy 11, no. 3 (2012): 65–72. http://dx.doi.org/10.3923/ja.2012.65.72.

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11

Okogbenin, E., C. N. Egesi, B. Olasanmi, et al. "Molecular Marker Analysis and Validation of Resistance to Cassava Mosaic Disease in Elite Cassava Genotypes in Nigeria." Crop Science 52, no. 6 (2012): 2576–86. http://dx.doi.org/10.2135/cropsci2011.11.0586.

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12

Dixon, Alfred G. O., Malachy O. Akoroda, Richardson U. Okechukwu, et al. "Fast track participatory approach to release of elite cassava genotypes for various uses in Nigeria’s cassava economy." Euphytica 160, no. 1 (2007): 1–13. http://dx.doi.org/10.1007/s10681-007-9487-2.

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13

Ikeorgu, J. E. G., and S. O. Odurukwe. "PRODUCTIVITY OF NIGERIA'S ELITE CASSAVA CULTIVARS GROWN IN MIXTURE WITH CONTRASTING MAIZE GENOTYPES." Acta Horticulturae, no. 380 (November 1994): 211–15. http://dx.doi.org/10.17660/actahortic.1994.380.32.

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14

J., O. Shiyam, F. D. Oko B., E. Uko A., Uket H.D., and E. Ekanem N. "AGRONOMIC EVALUATION OF SOME ELITE CASSAVA GENOTYPES IN THE RAIN FOREST AGROECOLOGY OF SOUTHEASTERN NIGERIA." Continental J. Agronomy 1 (June 18, 2007): 1–4. https://doi.org/10.5281/zenodo.810440.

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Cassava (<em>Manihot esculentus</em>) is a first-ranking carbohydrate staple in Nigeria and is very popular in the food systems of the humid and subhumid agroecological areas. It has high potential needs with diverse utilization capacities. Unfortunately, the current annual output of the crop is very low due to the predominant use of local clones which are disease-prone with characteristically low yield potential. Authentic information on yield capacity of the recently released CMD-resistant genotypes is still lacking. This formed the basis of the study. The design of the trial was a randomize
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15

Bakare, Moshood A., Siraj Ismail Kayondo, Cynthia I. Aghogho, et al. "Exploring genotype by environment interaction on cassava yield and yield related traits using classical statistical methods." PLOS ONE 17, no. 7 (2022): e0268189. http://dx.doi.org/10.1371/journal.pone.0268189.

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Variety advancement decisions for root quality and yield-related traits in cassava are complex due to the variable patterns of genotype-by-environment interactions (GEI). Therefore, studies focused on the dissection of the existing patterns of GEI using linear-bilinear models such as Finlay-Wilkinson (FW), additive main effect and multiplicative interaction (AMMI), and genotype and genotype-by-environment (GGE) interaction models are critical in defining the target population of environments (TPEs) for future testing, selection, and advancement. This study assessed 36 elite cassava clones in 1
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16

Okechukwu, R. U., and A. G. O. Dixon. "Genetic Gains from 30 Years of Cassava Breeding in Nigeria for Storage Root Yield and Disease Resistance in Elite Cassava Genotypes." Journal of Crop Improvement 22, no. 2 (2008): 181–208. http://dx.doi.org/10.1080/15427520802212506.

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17

Benesi, I. R. M., M. T. Labuschagne, A. G. O. Dixon, C. D. Viljoen, and N. M. Mahungu. "Genetic distance analysis of elite cassava (Manihot esculenta Crantz) genotypes in Malawi using morphological and AFLP marker techniques." South African Journal of Plant and Soil 23, no. 1 (2006): 58–61. http://dx.doi.org/10.1080/02571862.2006.10634731.

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18

Silva, Anabela Matangue Zacarias, António Arlindo Mendes, Jarnete Simião Campos de Castro, Sofrimento Fenias Matsimbe, and Jacob Fortuna Chimuca. "EVALUATION OF PRODUCTION IN ELITE GENOTYPES OF CASSAVA IN THE AGRARIAN SEASON OF UMBELUZI - UAE, DISTRICT OF BOANE – MAPUTO." Journal of Agricultural Sciences Research (2764-0973) 2, no. 13 (2022): 2–10. http://dx.doi.org/10.22533/at.ed.97321322201010.

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19

Aragón, Ingrid J., Hernán Ceballos, Dominique Dufour, and Mario G. Ferruzzi. "Pro-vitamin A carotenoids stability and bioaccessibility from elite selection of biofortified cassava roots (Manihot esculenta, Crantz) processed to traditional flours and porridges." Food & Function 9, no. 9 (2018): 4822–35. http://dx.doi.org/10.1039/c8fo01276h.

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The effects of fermentation and thermal processing on the stability and bioaccessibility of pVAC from elite selections of biofortified cassava roots were assessed to determine the potential for genotype x processing effects.
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20

Yuanjit, Pongpitak, Supachai Vuttipongchaikij, Passorn Wonnapinij, et al. "Evaluation of Yield Potential and Combining Ability in Thai Elite Cassava Varieties for Breeding Selection." Agronomy 13, no. 6 (2023): 1546. http://dx.doi.org/10.3390/agronomy13061546.

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Cassava breeding is a critical aspect of sustainable agriculture to address the challenges of food security and climate change. The present study aimed to assess the combining ability of six Thai cassava elite varieties for four key traits, including fresh root yield (FRY), fresh shoot yield (FSY), harvest index (HI) and starch content (SC) through an analysis of the diallel mating design over two years. Parental lines HB80 and R5 showed significant positive general combining ability (GCA) effects for high SC; R1 and HB80 for low FSY; and R1 for high FRY and HI. The genetic effects for FSY, SC
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21

Setiawan, K., R. Paresta, M. S. Hadi, S. D. Utomo, A. Karyanto, and Ardian. "Correlation and path analysis of three elite clones of cassava (Manihot esculenta Crantz)." IOP Conference Series: Earth and Environmental Science 1208, no. 1 (2023): 012030. http://dx.doi.org/10.1088/1755-1315/1208/1/012030.

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Abstract Waxy cassava having high amylopectin content could contribute and increase genetic background. Unfortunately, the genetic parameter information of three elite cassava clones as Waxy, UJ-5, and BW-1 is still limited. Consequently, the objective of this study was to evaluate leaf weight and yield by correlation and path analysis of three cassava clones. This study was conducted on the Integrated Field Lab of Lampung from December 2019 to October 2020. Treatment was arranged by a single factor in RCBD with two replications. There were three cassava genotype clones, as Waxy, UJ-5 (origina
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22

Setiawan, K., R. Paresta, MS Hadi, SD Utomo, A. Karyanto, and MF Najib. "Genetic Variation and Genetic Advance of Three Elite Cassava (Manihot Esculenta Crantz) Clones Under Wet Dry Climate of Lampung." IOP Conference Series: Earth and Environmental Science 1012, no. 1 (2022): 012067. http://dx.doi.org/10.1088/1755-1315/1012/1/012067.

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Abstract Waxy cassava having high amylopectin content could contribute and increase genetic background. Unfortunately, the genetic parameter information of three elite cassava clones as Waxy, UJ-5, and BW-1 is still limited. Consequently, the objective of this study was to evaluate the genetic variation and genetic advance of three cassava clones. This study was conducted on the Integrated Field Lab of Lampung from December 2019 to October 2020. Treatment was arranged by a single factor in RCBD with two replications. There were three cassava genotype clones, as Waxy, UJ-5 (originally Kasetsart
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23

Navangi, L. N., S. M. Githiri, E. M. Ateka, E. Kanju, S. Tumwegamire, and T. L. Munga. "Influence of Genotype, Location and Plant Age on Incidence and Severity of Cassava Mosaic and Cassava Brown Streak Diseases in Western Kenya." Journal of Experimental Agriculture International, July 22, 2020, 86–104. http://dx.doi.org/10.9734/jeai/2020/v42i630543.

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This study aimed to assess elite cassava genotypes for resistance to cassava mosaic and brown streak diseases at Alupe, Kakamega and Kibos in Western Kenya. The trial was conducted using alpha lattice balanced design using 24 genotypes with three replicates, for an extended cropping cycle between 2016 and 2017. Results for combined analysis of variance showed that genotype, location, month after planting (MAP) and their interactions significantly influenced (P ≤ 0.05) incidence and severity of CMD and CBSD. High CMD incidence and severity was recorded across all cassava genotypes at Alupe (mea
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24

Navangi, L. N., S. M. Githiri, E. M. Ateka, et al. "Evaluation of Cassava Genotypes for Agronomic Performance, Correlation with CMD and CBSD Parameters and Stability across Alupe, Kakamega and Kibos in Western Kenya." Journal of Experimental Agriculture International, March 14, 2020, 47–62. http://dx.doi.org/10.9734/jeai/2020/v42i230469.

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Cassava (Manihot esculenta Crantz) production in sub-Saharan Africa (SSA) is constrained by the two biotic constraints namely, cassava mosaic disease (CMD) and cassava brown streak disease (CBSD). The aim of this study was to evaluate elite cassava genotypes for variation in agronomical traits, correlate them to CMD and CBSD parameters and identify stable genotypes in Alupe, Kakamega and Kibos in Western Kenya. Twenty three (23) elite cassava genotypes that had shown resistance to either one or both of CMD and CBSD in Eastern Africa were evaluated. The trial was conducted using an alpha lattic
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25

Kareem, Babajide, Emmanuel Anyachukwu Irondi, Emmanuel Oladeji Alamu, et al. "Antioxidant, starch-digesting enzymes inhibitory, and pasting properties of elite yellow-fleshed cassava genotypes." Frontiers in Sustainable Food Systems 7 (March 16, 2023). http://dx.doi.org/10.3389/fsufs.2023.1129807.

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Biofortification of cassava roots has improved its health benefits by raising the quantity and bioavailability of bioactive compounds, particularly carotenoids. This study analyzed the bioactive constituents (carotenoids, tannins, total phenolics, and flavonoids), antioxidant, starch-digesting enzymes (α-amylase and α-glucosidase) inhibitory and pasting properties of flours of 18 elite yellow-fleshed cassava genotypes grown at the International Institute of Tropical Agriculture, Ibadan, using standard laboratory methods. Generally, the concentrations of the bioactive constituents (9-cis-β-caro
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26

Wang, Bin, Shuxia Li, Liangping Zou, et al. "Natural variation MeMYB108 associated with tolerance to stress-induced leaf abscission linked to enhanced protection against reactive oxygen species in cassava." Plant Cell Reports, May 24, 2022. http://dx.doi.org/10.1007/s00299-022-02879-6.

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Abstract Key Message Natural variation of the MeMYB108 exon was associated with reactive oxygen scavengers led to alleviate leaf abscission under drought in cassava. Abstract The reactive oxygen scavengers play important roles in regulating the cassava (Manihot esculenta Crantz) leaf abscission induced by stresses. To date, the relationship between natural variations of MYB genes and reactive oxygen scavengers under drought in cassava genotypes remains unclear. Here, we reported the transcription factor MeMYB108 played an important role in regulating leaf abscission exposed to drought in cassa
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27

Ibrahim, Yasmin, Yona Baguma, Wilfred Abincha, Paul Gibson, Richard Edema, and Jenipher Bisikwa. "Flowering problems and their possible solution in cassava breeding." Journal of Scientific Agriculture, August 18, 2020, 83–89. http://dx.doi.org/10.25081/jsa.2020.v4.6220.

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Six elite cassava clones were chosen from cassava breeding program at the National Crops Resource Research Institute (NaCRRI) based on their flowering characteristics and seed set. The clones were planted in randomized complete block experimental design with 3 replications. The floral biology of these cassava clones were studied, focusing on morphological traits and developmental timing. Since cassava develops branches in levels, data was sourced from the 1st level of branching through the 4th level of branching. The result indicated that days to branching generally varied among all the genoty
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28

Magambo, Stephen, Alice Nabatanzi, Titus Alicai, et al. "SOMATIC EMBRYO PRODUCTION AND GFP GENETIC TRANSFORMATION IN ELITE UGANDAN CASSAVA GENOTYPES." Scientific African, December 2023, e02039. http://dx.doi.org/10.1016/j.sciaf.2023.e02039.

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29

Ano, Chukwuka Ugochukwu, Mildred Ochwo-Ssemakula, Angele Ibanda, et al. "Cassava Brown Streak Disease Response and Association With Agronomic Traits in Elite Nigerian Cassava Cultivars." Frontiers in Plant Science 12 (November 22, 2021). http://dx.doi.org/10.3389/fpls.2021.720532.

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Cassava mosaic geminiviruses (CMGs) and cassava brown streak viruses (CBSVs) cause the highest yield losses in cassava production in Africa. In particular, cassava brown streak disease (CBSD) is and continues to be a significant constraint to optimal cassava production in Eastern and Southern Africa. While CBSD has not been reported in West Africa, its recent rapid spread and damage to cassava productivity in Eastern, and Southern Africa is alarming. The aim of this study was to evaluate Nigerian cassava genotypes in order to determine their responses to CBSD, in the event that it invades Nige
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30

Alamu, Emmanuel Oladeji, Noah Manda, Pheneas Ntawuruhunga, Adebayo Abass, and Busie Maziya-Dixon. "Elite cassava clones (Manihot esculenta) grown in Zambia: effects of drying techniques on their chemical, functional, and pasting properties." Frontiers in Sustainable Food Systems 7 (June 15, 2023). http://dx.doi.org/10.3389/fsufs.2023.1129779.

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IntroductionCassava (Manihot esculanta) is becoming an important crop in most developing countries, especially Zambia. However, cassava roots deteriorate quickly after harvest, producing flour or chips of sub-optimal quality. Hence the evaluation of processing procedures to extend the product's shelf-life cannot be overemphasized. This study investigated the effects of different drying methods on the chemical, functional and pasting properties of selected advanced cassava clones grown in Zambia.MethodsFresh Roots of the seven cassava clones (harvested 12 months after planting) were sampled, pe
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31

Bassey, Emmanuel Essien. "Evaluation of Nine Elite Cassava (Manihot Esculenta Crantz) Genotypes for Tuber and Gari Yields and Gari Quality in Four Locations in Akwa Ibom State, Nigeria." American Research Journal of Agriculture 4, no. 1 (2018). http://dx.doi.org/10.21694/2378-9018.18003.

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