The effect of hormonal combinations on in vitro propagation of Ginger (Zingiber officinale Roscoe)

Document Type : Research Paper

Authors

1 Corresponding author. Associate Professor, Department of Biotechnology and Plant Breeding, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran

2 MSc student, Department of Biotechnology and Plant Breeding, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran.

3 Professor, Department of Biotechnology and Plant Breeding, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad

4 Educational Expert, Department of Biotechnology and Plant Breeding, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad

Abstract

Background and objective
Ginger (Zingiber officinale Roscoe) belongs to the Zingiberaceae family and it is one of the most important spices in the world which produces spicy and fragrant flavors and it has many healing properties. This plant does not have the ability to produce seeds due to sterility. The growth of the plant through the rhizome causes the cost of cultivation and the probability of pathogen attack. Therefore, propagation using in vitro tissue culture be effective method for increasing the rate of proliferation and infection control. For obtaining the better results in tissue culture, explants should be prepared from healthy, fresh and strong maternal sources. Somatic embryogenesis usually not used for propagation due to mutation, so it is better to use the rhizome buds as explant to preserve genetic characteristics.
Material and Methods
For micropropagation, explants including shoot, leaf, collar and buds of ginger in were used and cultured on MS basal medium supplemented with 9 different hormonal combinations (BAP alone or in combination with NAA) for shoot induction. Shoots were transferred to MS medium containing 1 mg/l NAA or IBA for rooting. Plantlets were transferred to pots and gradually adapted to the greenhouse condition.
Results
The best explant for fast and easy multiplication of ginger was the healthy rhizome. MS culture medium supplemented with 2 mg/l BAP and 1 mg/l NAA produced 7 shoots in each rhizome bud. The best treatment for rooting was MS medium containing 1 mg/l NAA which produced 7 roots per shoot. Then, the plantlets were successfully adopted in pots containing garden soil and cocopeat at greenhouse condition.
Conclusion
The results of this study showed that micropropagation of ginger plant is affected by the type of growth regulators and their concentration in MS medium and the rhizome buds were the best explants for direct in vitro propagation of ginger.

Keywords


بیگلری فراش راضیه،  نیک فکر روح الله (1400) ریزازدیادی و تکثیر درون شیشه ای گیاه زنجبیل (Zingiber officinale Rosc). اولین همایش ملی پژوهش های جامعه محور در کشاورزی، منابع طبیعی و محیط زیست، همدان، ایران.
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