In vitro propagation of Hydrangea spp

Area of Science:

• Plant Biotechnology
• Horticultural Science
• In Vitro Culture

Background:

• Hydrangea (Hortensia) is a valuable ornamental plant for gardens and the cut flower industry.
• Efficient micropropagation is crucial for commercial Hydrangea production.

Purpose of the Study:

• To develop an optimized in vitro propagation protocol for Hydrangea.
• To achieve high rooting and acclimatization rates for commercialization.

Main Methods:

• Utilized Murashige and Skoog medium with BA and sucrose for shoot proliferation.
• Tested Naphthalene Acetic Acid (NAA) for in vitro rooting and Potassium Indole-3-butyric Acid (K-IBA) for in vivo rooting.
• Evaluated culture conditions including temperature, light intensity, and photoperiod.

Main Results:

• Achieved 100% in vitro rooting on medium with 0.5 mg/L NAA.
• Attained 95% direct in vivo rooting using 5,000 ppm K-IBA solution.
• Successfully acclimatized plants within 21 days for commercial use.

Conclusions:

• The developed protocol enables efficient mass propagation of Hydrangea for the cut flower market.
• Both in vitro and in vivo rooting methods proved highly effective.
• Further research explored callus induction and adventitious shoot regeneration from leaf explants.