Use of Commercial Sugar, Isabgol and Ordinary Water in Culture Medium for Conservation of Curcuma longa L
2008
Agrawal, Anuradha | Mahalakshmi, C. | Tyagi, R. K.
Commercial sugar (market sugar or cube sugar) as carbon source, psyllium seed hask commonly known as isabgol (Plantago ovata) as gelling agent, and medium prepared in ordinary water [OW; pH: 7.48; electrical conductivity (EC): 299 μS cm⁻¹] instead of deionized distilled water (DW; pH: 5.67; EC: 5 μS cm⁻¹), did not show any significant effect on micropropagation and in vitro conservation of Curcuma longa cv Prathibha as compared to the control medium (CM) that was prepared with sucrose, gelled with agar in DW. The isabgol-gelled media not only supported better survival of cultures than those on agargelled media, but was also very cost-effective. After 12 months of conservation, significantly higher survival of 33–44% cultures was recorded in isabgol-gelled media, whereas only 16% of cultures survived on CM. By substituting inexpensive sources of three major components of the medium — market sugar, isabgol and OW, up to 84% decrease in cost of medium for plant regeneration and in vitro conservation could be achieved.
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