Its scientific name is taken from the Greek for sweet root glykys , meaning sweet, and rhiza , meaning root. It is cultivated for its rhizomes underground stems that contain the compound glycyrrhizin, which is 50 times sweeter than sugar. Also well-known as a medicinal plant, G. There are about 20 species in the genus Glycyrrhiza , and many of these are used locally to make liquorice confectionery.
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The plant thrives in a dry and sunny climate and is cultivated in the sub-tropical and warm temperate regions, chiefly in the Mediterranean region.
Register Login. Edit Page. The stolon crown gives rise to a number of long semi-woody stems which bear compound pinnate leaves. Stolon is nearly cylindrical, upto 2 cm in diameter. Outer surface is yellowish-brown or longitudinally wrinkled with patches of cork.
Its odour is characteristics and taste is sweet. Floral Characteristics Flowers are pale blue in colour and flowering occurs from years of planting onwards.
Pod is 2. Distribution The plant thrives in a dry and sunny climate and is cultivated in the sub-tropical and warm temperate regions, chiefly in the Mediterranean region. Mulethi is a hardy plant and grows over rich forest soils, ranging from pH 5. Sandy-loam fertile soils with pH 6. The plant thrives in cultivation, where the locality receives cm rainfall annually and cultivation is supported with irrigation.
Propagation Material Propagation is usually carried through stolons cuttings of about cm. Seed can be used, but seed-set is poor in India and seed germination is low. Vegetative method of propagation is, thus recommended. Agro-technique Nursery Technique Raising Propagules: The old crown of roots dry out in autumn may be divided into cm long pieces having buds. These are used as planting material. It could be placed in furrows mode in rows at planting.
The crop remains in the field for years duration for proper growth of stolon for high yield. It requires kg of planting material for one hectare land. Propagule Rate and Pre-treatment: It was found that the capacity of seeds to germinate differ with the stages of their maturation. During milky waxy ripe stages, the seeds have poor germination capacity and the shoots have low survival capacity, but if seeds are collected in July, they show highest germinating capacity. This is a long duration crop and the preparation of field should be of good tilth and the fields be leveled well to avoid stagnation of water.
It was observed in a particular case that scarified seeds germinated slowly and their germination reached upto Planting in the Field Land Preparation and Fertilizer Application: The field should be ploughed thoroughly followed by harrowing to bring the soil to a fine tilth and free from weeds.
The stolon begins sprouting in 20 days after planting. Light and frequent irrigation is necessary during spring planting until the cuttings sprout and establish themselves in the field. Once the plants grow upto 20 to 30 cm tall, the rows are raised to facilitate root development. The root system grows horizontally at remains at 30 cm depth in the soil.
Intercropping System: As the plant occupies the land for years, the cultivator prefers to take a crop of carrot, potato, cabbage between the ridges during the first 2 years. However, it is considered advisable to do away with the practice and keep the area continuously clean to keep it free from weeds.
Irrigation Practices: The crop requires irrigation at an interval of days in dry summer season. The plant sheds leaves in November and one to two irrigations is, given during winter season to maintain root health. In all 7- 10 irrigations are given to the crop per year. It is important to avoid water-logging in the field as stagnation of water in the field will cause damping-off disease and root rotting which cause large scale damage to the growing plants.
Weed Control: Three to four hoeing — cum- weedings are required in the first year of planting and in subsequent years, two hands weeding- cum- hoeings are recommended to keep the fields weed free for healthy crop growth.
Pests and Diseases: Survey of literature revealed very few reports on diseases and pests of Glycyrrhiza glabra caused by Gentrospora acerino. The plant is also reported to be affected by panashmosaic caused by virus. Harvest Management Crop Maturity and Harvesting: It is found that high yields are obtained from 3 or 4 years of planting. Manual digging is carried for harvesting of roots.
Using disc harrow for digging has proved successful and is highly economical. It over turns the soil, which is left in field for sun drying; later the roots are sorted out and cleaned. The crop is harvested in winter season i. November or December to obtain roots contaning high glycyrrhizic acid. Post-harvest Management: After harvesting and removal of soil and other residual particles, the roots are cut into pieces and dried.
At the time of harvest, the roots contain 60 percent moisture and should be dried in the sun for 2- 3 days and then in shade for next 12 days. The roots are cut into pieces of convenient size and are sorted into grades, based on thickness and stored.
Chemical Constituents: Liquoric acid, glycyrrhizinic acid, flavonone glycosiderhamnoliquiritin, pinocembrine, prunetin, isoglabrolide and glabranine are found in roots. Total of 27 flavonoids are present in the roots, 3 were characterized as liquiritigenin, liquiritin and isoliquiritigenin. From roots, three new compounds were isolated i.
While at Anand Gujarat 10 to 20 months crop has given an average yielded of 2. Glycyrrhiza glabra in field Therapeutic Uses The plant root is a demulcent, mild expectorant and anti-inflammatory agent.
An extract of the root provide relief in treating peptic ulcers. It has glycyrrhizic acid as main constituent and this has showed anti-viral and anti-inflammatory actions. The plant extract is used as a sweetener in tonic, laxative and given in sore throat and in cough remedies. Source: Agro-techniques of selected medicinal plants. All content appearing on the vikaspedia portal is through collaborative effort of vikaspedia and its partners. We encourage you to use and share the content in a respectful and fair manner.
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The liquorice plant is a herbaceous perennial legume native to the Western Asia and southern Europe. Liquorice is used as a flavouring in candies and tobacco, particularly in some European and West Asian countries. Liquorice extracts have been used in herbalism and traditional medicine. The flowers are 0. Much of the sweetness in liquorice comes from glycyrrhizin , which has a sweet taste, 30—50 times the sweetness of sugar.
Glycyrrhiza glabra L. Glycyrrhiza brachycarpa Boiss. Li, Glycyrrhiza glabra var. Ponert, Glycyrrhiza glabra var. Sri Lanka : Atimaduram, Valmi Sinhala. According to Hayashi , Hayashi and Sudo , G. Three varieties of G.
Birla Hospital, Birla Road, P. Nature is an attractive source of new therapeutic candidate compounds as a tremendous chemical diversity is found in millions of species of plants, animals, marine organisms, and microorganisms as potential medicinal agents. The chemical composition of G. These phytochemicals hold strong promise for designing new herbal drugs, and derivatives of these compounds are being generated to evaluate their pharmacological purposes for future drug use.