| Medicinal Herbs -> Mulathi |
| |
Liquorice or Mulethi is a tall, erect herb, growing upto about 1.5 metres in height. The dried roots and underground stems or rhizomes of the plant constitute the drug.
The root of the plant is a laxative and expectorant. When externally used it has a soothing effect on the skin. Powdered liquorice is very popular in allopathic medicine.
|
 |
Liquorice (Mulethi)
Glycyrrhiza Glabra L. Family - Fabaceae
Mulethi a perennial under shrub, which reaches upto 1.2 m height under favourable
growing conditions in nature. The root crown gives out a number of long woody
stems which bear compound pinnate leaves. Flowers pale-blue in colour and are
borne at the age of 2/3 years and onwards. Fruit 2 to 2.5 cm long pods containing 2
to 5 seeds.
Common Names:
Liquorice, Madhukah, Yestimadhu
Distribution:
This species is widely distributed in the world from 50W to 1000E longitude and 200 to
500 N latitude. It is reported abundant in Western China, parts of Asia Minor, Persia,
Asian Republics of erstwhile U. S. S. R. and Afghanistan. It is also cultivated in
Punjab & Sub Himalayan tracts in India.
Part Used
Root.
Cultivation
Soil And Climate
Liquorice is a hardy plant and occurs in nature on rich forest soils, acidic to slightly
alkaline soils (pH 5.5 to 8.2). It inhabits dry cold temperature to Mediterranean
climates where annual temperature varies from 250C (summer) and 50C in winter
season.
Sandy loam fertile soils having pH of 6 to 8.2 have been found to promote better
root development in India. The plant thrives in locations receiving 50-100 cm of
rainfall annually and cultivation supported with irrigation; irrigation beneficial for
higher root yield.
Nursery Raising And Planting
This is a long duration crop and the preparation of field should be of good tilth and
the fields be levelled well to avoid stagnation of water. The cuttings of the
underground stem/root of 15-25 cm possessing 2-3 eye buds are planted directly in
the field 6-8 cm deep in the soil at a distance of 90x45 cm. Besides this the rows
may be raised 45-60 cm to facilitate irrigation. It should be planted at 60x45 cm
spacing. In this manner 250-300 kg of wet weight of stem cutting is required for
plantation of one hectare land.
The cutting begin sprouting in 15-20 days after
planting. Light and frequent irrigation is necessary during spring planting until the
cutting sprout and establish themselves in the field. Fresh planting can be raised
during February-March or July-August.
Thinning And Weeding
Three to four hoeing cum weeding are required in the first year of planting and in
subsequent years two hand weeding-cum-hoeings are considered to keep the fields
weed free for healthy growth of plants.
Manures, Fertilisers And Pesticides
The medicinal plants have to be grown without chemical fertilizers and use of
pesticides. Organic manures like, Farm Yard Manure (FYM), Vermi-Compost, Green
Manure etc. may be used as per requirement of the species. To prevent diseases,
bio-pesticides could be prepared (either single or mixture) from Neem (kernel, seeds
& leaves), Chitrakmool, Dhatura, Cow's urine etc.
Irrigation
The crop requires irrigation at an interval of 30-45 days in dry summer season. The
plant sheds leaves in November and no irrigation is given throughout winter season.
In all 7-10 irrigation are given to the crop. It is important to avoid water-logging in
field as stagnation of water in the field will cause-root rotting due to infection of soil
borne diseases.
Harvesting/Post Harvesting Operation
It is found that high yields are obtained from 2-½-3 year old crop manual digging is
performed for harvesting roots but is found very costly. One disc harrow for digging
which has proved successful and is highly economical. It overturns 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.e. November or December months to obtain roots of
high glycyrrhizic acid.
At harvest, the roots contain 50-60 percent moisture and should be dried in the sun
for 2-3 days and then in shade for next 10-12 days. The dry roots should possess
not more than 10% moisture when these are ready to be stored in polythene lined
bags. The roots are cut into pieces of convenient size and shorted into grades, based
on thickness.
|
| Post an Enquiry |
