Academic literature on the topic 'Elite cassava genotypes'

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Journal articles on the topic "Elite cassava genotypes"

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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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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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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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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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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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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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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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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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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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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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Book chapters on the topic "Elite cassava genotypes"

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Emmanuel Norman, Prince, Daniel K. Dzidzienyo, and Kumba Yannah Karim. "Assessing Mating Designs Utilized in Cassava Population Improvement." In Cassava - Biology, Production, and Use. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.96785.

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Cassava breeders are curious about appropriate breeding strategies utilized to generate elite genotypes with desired complimentary traits or genes from parents used in crossing. Use of appropriate mating design is influenced by a good understanding of the flower biology of the putative parent plants, type of pollination, crossing technique, pollen dissemination, the presence of male-sterility system, the purpose of the project (that is either breeding or genetic studies), and the size of population needed. The objective of this book chapter is to assess the current knowledge on mating designs,
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Atnafua, B., T. Tesfaye, K. Asfaw, M. Tewodros, E. Getachew, and Neim. "The Elite Cassava Genotypes with High Yield and Stability in Diverse Environmental Conditions of Ethiopia." In Current Topics in Agricultural Sciences Vol. 2. Book Publisher International (a part of SCIENCEDOMAIN International), 2021. http://dx.doi.org/10.9734/bpi/ctas/v2/3241f.

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