In vitro microtuberization in potato (Solanum tuberosum L.) cultivars
B M Sakha1, A K Bhatia, V K Batra
1Department of Vegetable Science, CCS Haryana Agricultural University, Hisar 125 004, India.
Indian Journal of Experimental Biology
|December 30, 2004
Summary
Potato microtuberization was optimized using MS medium with chlorocholine chloride. Kufri Chandramukhi (KCM) produced the highest yield of micro-tubers under continuous darkness at 20°C.
Area of Science:
- Plant Biotechnology
- Agricultural Science
- Horticultural Science
Background:
- Microtuberization is a key process for efficient propagation of elite potato cultivars.
- Understanding the optimal conditions for microtuber induction is crucial for large-scale plantlet production.
Purpose of the Study:
- To investigate the mechanism of microtuberization in three elite potato cultivars: Kufri Badhsha (KB), Kufri Chandramukhi (KCM), and Kufri Jawahar (KJ).
- To determine the most suitable medium and incubation conditions for maximizing microtuber yield.
Main Methods:
- In vitro shoot cultures were established from sprouts of the three potato cultivars.
- Cultures were grown on MS medium supplemented with chlorocholine chloride.
- Incubation conditions were varied, focusing on light (continuous darkness) and temperature (20°C ± 1°C).
Main Results:
- MS medium supplemented with chlorocholine chloride was found to be optimal for microtuberization across all tested cultivars.
- Continuous darkness at 20°C ± 1°C significantly enhanced tuberization.
- Kufri Chandramukhi (KCM) exhibited the highest yield of micro-tubers per plant, outperforming Kufri Jawahar (KJ) and Kufri Badhsha (KB).
Conclusions:
- The study identified optimal conditions for in vitro microtuber production in elite potato cultivars.
- Kufri Chandramukhi (KCM) demonstrates superior potential for microtuber yield compared to Kufri Jawahar (KJ) and Kufri Badhsha (KB) under the tested conditions.
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