ABSTRACT
Ginger (Zingiber officinale) is one of the oriental spices, widely used worldwide for multiple purposes. It is applied as an important ingredient in Ayurvedic preparations from time immemorial. Tissue culture is a practice that is utilized to propagate plants from cells or tissue under sterile conditions. This study is directed to create a review of the successful and reproducible convention for in vitro recovery of ginger with emphasis on effective initial culture establishment. Furthermore, it has dealt with the appropriate explant size and effectiveness of media quality on micropropagation of ginger. The current study recommends that the medium containing Benzyl Amino Purine (BAP) can be used for inducing shoot development of ginger. Among the diverse explants, shoot tips give the quickest response for starting development and the highest number of multiple shoots are produced. As well, it is demonstrated that a survival rate and proper shoot/root expansion can be obtained through the tissue culture methods. Emphasizing the tips and recommendations, this study would be a route-map towards time and cost saving for producing a better quality of ginger.
ABSTRACT
Pleurotus pulmonarius commonly known as the grey oyster mushroom is the most widely cultivated species for its nutritional, medicinal and economical values. Two strains (China & Thailand) of P. pulmonarius were grown in potato dextrose agar (PDA) and sawdust substrate in different salinity conditions with different water collected from four resources to analyse the vegetative growth of mycelium. The water samples were labelled as W1-lab water (control), W2- Nas-Agro farm water, W3- Ganofarm water and W4- 7-star agricultural farm water. The present research evidently indicated that the two strains of P. pulmonarius showed relative similarities regarding their development and physiochemical characteristics. The mycelia of P. pulmonarius showed considerable growth for 0% and 1% NaCl in both PDA and substrate medium. The slight growth for 5% NaCl was observed only in sawdust substrate for W2 (water collected from Nas-Agro Farm) while remaining 10% NaCl plates (PDA) and test tubes (sawdust substrate) remained uncolonised. Among the NaCl concentrations tested, the best mycelia yield was recorded in the medium with low concentrations of NaCl as an essential element for the mycelial growth. Variation of mycelial growth was also observed with different water samples, growth medium and strains of the mushroom. The best results were observed in W2 with PDA media showing high vegetative growth. Moreover, the China strain showed faster and uniform results. This suggests that salinity, growth medium and water are effective for the growth of mycelium.