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Optimization of cassava (Manihot esculenta Crantz) grafting technique to enhance its adoption in cassava cultivation
Wednesday, 2024/10/30 | 08:25:35
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Frank Opoku-Agyemang, Jacqueline Naalamle Amissah, Stella Owusu-Nketia, Peter Amoako Ofori, Michitaka Notaguchi MethodsX; 2024 Aug 19: 13:102904. doi: 10.1016/j.mex.2024.102904. AbstractGrafting techniques have been successfully adopted to improve resistance to biotic and abiotic stresses, increase yields, fruit quality and study systemic signaling in plants. This technique has not been fully explored in cassava and there is currently no standardized grafting method for this species published especially in Africa. This is the first report on cassava grafting protocol in Africa with valuable advantages including utilizing a cost-effective and environmentally friendly wooden healing chamber. In this study, we describe an optimized cleft grafting protocol for cassava utilizing a wooden healing chamber and outline the step-by-step procedure with optimum conditions to generate a high grafting success rate. Using a top wedge grafting technique with high reproducibility and success rates, we developed a straightforward and robust grafting protocol for cassava (M. esculenta) cultivars. Grafting success was recorded and this protocol produced a high grafting success of 90 % and its reproducibility makes it suitable for mass production thereby addressing the need for efficient cassava propagation. This grafting protocol requires less specialized equipment and expertise making it more accessible to farmers and researchers with limited resources to promote the use of grafting for cassava growth, yield improvement and advanced studies such as systemic long-distance signaling in plants.•Optimization of cleft grafting method obtains a high success grafting rate of cassava.•A wooden healing chamber provides a controlled environment for graft healing.•Promoting cassava grafting; a priority to produce new cultivars and explore breeding research prospects.
See https://pubmed.ncbi.nlm.nih.gov/39258290/
Figure 5 Post grafting acclimatization and evaluation of 30 days old cassava grafts under greenhouse conditions. (a) Grafted plants acclimatized under greenhouse conditions without grafting clips at the graft junctions. (b) Representative “Pole Bankye”/”CRI-Bankye Hemaa” successful graft at 30 DAG. The “Pole Bankye” cassava scion developed new leaves. Arrowhead indicates the graft junction. (c) The survival rates were determined 30 days after grafting and acclimatization of 19–26 grafts for each combination under greenhouse conditions based on grafts with apparent graft-take, new leaves and good vigor. PB, Pole Bankye; C-BH, CRI-Bankye Hemaa. Bars: 1 and 5 cm.
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