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Effect of different stem portion on germination, growth, development and yield of 2 cassava genotypes grown by mini cutting |
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| รหัสดีโอไอ | |
| Creator | Nateetip Sawatraksa |
| Title | Effect of different stem portion on germination, growth, development and yield of 2 cassava genotypes grown by mini cutting |
| Contributor | Anon Janket, Taksin Taksinkanon, Phasita Toonsiri, Ruttanachira Ruttanaprasert |
| Publisher | Faculty of Agriculture |
| Publication Year | 2567 |
| Journal Title | Khon Kaen Agriculture Journal |
| Journal Vol. | 52 |
| Journal No. | 5 |
| Page no. | 895-910 |
| Keyword | rapid propagation, germination, seedling vigor index, Manihot esculenta |
| URL Website | https://li01.tci-thaijo.org/index.php/agkasetkaj |
| Website title | Khon Kaen Agriculture Journal |
| ISSN | 3027-6497 (Online) |
| Abstract | Knowledge of rapid cassava propagation techniques is a crucial approach to increase the production of cassava stem cuttings free from cassava mosaic disease to meet the demand of farmers under the disease outbreak situation. This study aimed to evaluate the effect of stem portions for mini cutting on germination, seedling vigor index, growth, development, and yield of two cassava genotypes with different branching patterns grown by mini cutting. A 2 x 2 factorial experiment in a completely randomized design with four replications was used. Factor A consisted of two cassava genotypes (Rayong 9 and CMR38-125-77), and factor B was different stem positions for mini cutting (top and middle parts). This experiment was conducted in trays under greenhouse condition and in pots under natural condition. Results found that the CMR38-125-77 genotype had higher percentages of sprouting, speed of germination, seedling vigor index, seedling height, seedling dry weight, plant height development, number of leaves, and canopy height at 1-4 months after transplanting (MAP) compared to the Rayong 9. Meanwhile, the middle part stem cuttings of both genotypes had higher sprouting percentage, seedling vigor index, speed of germination, root length, leaf area, above-ground dry weight, tuber dry weight, and biomass at 6 MAP than the top part. However, a significant difference was not observed between cassava genotypes for storage root dry weight at 6 MAP. Additionally, it was also found that the CMR38-125-77 planted from the middle stem part had the highest harvest index. |
