MICROTUBERIZATION OF POTATO (Solanum tuberosum L.):- 1- PROTOCOL FOR PRODUCTION OF MICROTUBER IN VITRO. | ||||
Journal of Plant Production | ||||
Article 14, Volume 31, Issue 9, September 2006, Page 5909-5919 PDF (175.24 K) | ||||
Document Type: Original Article | ||||
DOI: 10.21608/jpp.2006.236180 | ||||
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Authors | ||||
H. M. S. Aboshama,1; S. T. El-Afifi2; Omaima M. Abdel-kafie2; Hala E. Abd Allah | ||||
1Minufiya Univ.-- Genetic Engineering and Biotechnology Res. Inst. Plant Biotechnology Depart., Egypt. | ||||
2Mans. Unlv.- Faculty of Agric., Veg. and Flor. Depart. | ||||
Abstract | ||||
This study was conducted in the tissue culture laboratory of the Horticulture Department, Faculty of Agriculture, Mansoura University during the period from 2002 to 2005, aiming to investigate the effect of cytokinins (BAP or Kin) andror auxin (NAA) on multiplication rate as well as auxins (2,4-D, IBA and NAA) or cytokinin (BAP) on microtuberization of potato as a new and simple protocol for production of potato in vitro. The effect of cytokinins and auxin on multiplication rate (shoot length, number of both shoots and leaves per explant and fresh weight of cluster) was recorded in this study. Shoot length was increased by all Kin levels and decreased by BAP levels while was not affected by NAA. Moreover, either BAP or Kin increased number of shoots per explant, especially at 0.2mgrL (4.30 and 2.77, respectively).The highest number of leaves per explant was obtained by 0.2 mgr'L BAP (16.41) or 0.5 mglL Kin (14.43). BAP and Kin had the same effect on increasing cluster fresh weight. The combination between NAA combined with either BAP or Kin increased number of leaves per explant and cluster fresh weight. BAP at (0.2 rngll. BAP + 0.1 mgfL NAA) proved its efficiency than the similar combination of Kin and NAA (at the same concentrations) for all studded characters. Potato microtuberization can be done by using of any tested auxins alone (2,4-D, IBA or NAA) each at 0.0, 0.5, 1.5 and 1.5 mgfL in MS medium supplemented with 30gfL sucrose and incubated in dark condition. The Best results of microtuber weight. diameter, length and numberfshoot were at 1.0 mgr'L 2,4-D (151, 5.30, 7.50 and 1.66, respectively) and at 1.5 mgfL IBA (129, 4.70, 7.50 and 1.57. respectively) or NAA (153, 5.10, 3.20 and 1.66, respectively). In addition, microtuberization also can be done by using BAP alone at 0.0, 1.0, 2.0, 3.0, 4.0, 5.0 and 6.0 mgr’l. under the same condition. The Best results were at 2.0 mgfL BAP (109, 4.30, 7.70 and 2.33 for microtuber weight, diameter, length and number/shoot. respectively). | ||||
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