Metaferia Muluneh Bantayehu, Roro Gobena Amsalu, Dessa Alemu
Enset is not just a food crop, but is a multipurpose crop of which every part of the plant (except the root) is utilized, for food and several non-food applications. Conventionally enset is propagated by vegetative means from underground rhizome/corm. In vitro enset multiplied from any part of plant by the use plant growth regulating hormones. However, hormone application is not commonly utilized on in situ enset propagation. Therefore, this study was designed to study the impact of hormone concentration on corm size and different accession on in situ sucker multiplication. An experiment was conducted in factorial arrangement using RCBD with sixteen treatments each replicated three times. The treatment consisted of four NAA+BAP mg/l combined concentration (0.75 NAA+2.25 BAP, 1.5 NAA+4.5 BAP, 3.0 NAA+9.0 BAP and 0 NAA+0 BAP mg/l) two clones (“kaati ziinik” and “ziinik buukuma”) and two corm sizes (whole corm and halved corm). Data related to sucker multiplication and sucker growth parameters collected during the experiment period. Clone kaati ziinik couple with whole corm size gave the maximum sucker than halved corm. However, clone “ziinik buukuma” produced vigorous and larger number of sucker from halved corms than using whole corm. The interaction of hormone concentration, clone and corm size was significantly influenced number of sucker, number of root; leaf area index and sucker dry weight. The maximum number of sucker and leaf area index were recorded from whole corm of clone KZ treated with NAA/2.25 BAP mg/l hormone concentrations. In general, it was observed that the highest number of root was recorded by halved and whole corm of clone KZ treated with 1.5 NAA + 4.5 BAP mg/l and 3.0 NAA + 9.0 BAP mg/l combined concentration, respectively. The highest developed dry weight of sucker was scored from whole corm of clone KZ treated with 1.5 NAA + 4.5 BAP mg/l combined concentration. The finding of this study provides an evidence for the application of plant growth regulating hormones on in situ multiplication of Enset from corm. In general, to use 1.5 NAA + 4.5BAP mg/l combined concentration on clone ZB with halved corm is recommended. It was observed comparatively the high number of emerged sucker, leaf area index number of root and minimizes cost of corm.
hormones combination, “kaati ziinik”, “ziinik buukuma”, in situ propagation
Cite this paper
Metaferia Muluneh Bantayehu, Roro Gobena Amsalu, Dessa Alemu. (2021) The Impact of Hormone Concentration, Clone Type and Corm Size on in situ Sucker Development of Enset (Ensete ventricosum) at Basketo, Southern Ethiopia. International Journal of Agricultural Science, 6, 142-150