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Abirami K.,Medicinal and Aromatic Plants Research | Abirami K.,Central Agricultural Research institute andaman and Nicobar Island | Rana V.S.,Medicinal and Aromatic Plants Research | Rana V.S.,Indian Agricultural Research Institute | And 3 more authors.
Indian Journal of Agronomy | Year: 2014

An experiment was conducted to work out the optimum spacing for obtaining maximum biomass, essential oil and artemisinin yields in antimalarial herb (Artemisia annua L.) in the semi-arid region of Gujarat. It was laid out in a randomized block design with 5 spacing treatments, viz. 30 cm × 45 cm, 30 cm × 60 cm, 45 cm × 45 cm, 45 cm × 60 cm and 60 cm × 60 cm. There were no significant differences in growth parameters like plant height and number of branches among different spacings. However, significant differences were observed in yield characteristics and was found that the mean fresh (30.79 t/ha) and dry (18.35 t/ha) herb yield and fresh (7.7 t/ha) and dry (3.91 t/ ha) leaf yields, were maximum under spacing of 45cm × 45 cm. The leaf harvest index and leaf: stem ratio were also significantly higher under optimum spacing of 45 cm × 45 cm. No significant differences were observed in essential oil content, their composition and artemisinin contents among the different spacing but the yields of essential oil (54.95 kg/ha) and artemisinin (8.88 kg/ha) were found maximum in the spacing of 45 cm × 45 cm. © 2014, Indian Journal of Agronomy. All rights reserved.


Rao N.S.,Medicinal and Aromatic Plants Research | Das S.K.,Berhampur University
Journal of Theoretical and Applied Information Technology | Year: 2011

There are a large number of herbal gardens in India and most of them are not linked and classified the availability of medicinal plant species of these gardens. In this study, the hierarchical clustering technique of data mining was applied on the herbal gardens of India and classified in order to discover meaningful patterns such as what type of habit of medicinal plant species is present in which location of India. © 2005 - 2011 JATIT & LLS. All rights reserved.


Samantaray S.,Medicinal and Aromatic Plants Research | Maiti S.,Medicinal and Aromatic Plants Research
Revista de Biologia Tropical | Year: 2011

Chlorophytum arundinaceum is an important medicinal plant and its tuberous roots are used for various health ailment treatments. It has become an endangered species in the Eastern Ghats, and a rare medicinal herb in India, due to its excessive collection from its natural habitat and its destructive harvesting techniques, coupled with poor seed germination and low vegetative multiplication ratio. In order to contribute to its production systems, an efficient protocol was developed for in vitro clonal propagation through shoot bud culture. For this, multiple shoots were induced from shoot bud explants on Murashige and Skoog's medium supplemented with 2.5-3.0mg/L BAP, 0.01-0.1mg/L NAA and 3% (w/v) sucrose. Inclusion of Adenine Sulphate (25mg/L) in the culture medium improved the frequency of multiple shoot production and recovered the chlorotic symptoms of the leaves. Media having pH 5.9 and 4% sucrose showed significant improvement on shoot bud multiplication and growth. In vitro flowering was observed when the subcultures were carried out for over four months in the same multiplication media. Rooting was readily achieved upon transferring the shoots on to half- strength MS medium supplemented with 0.1mg/L IBA and 2% (w/v) sucrose. Micropropagated plantlets were hardened in the green house, successfully established, and flowered in the field. This method could effectively be applied for the conservation and clonal propagation to meet the demand of planting materials.


Umesha K.,University of Agricultureal science | Soumya S.P.,University of Agricultureal science | Smitha G.R.,University of Agricultureal science | Smitha G.R.,Medicinal and Aromatic Plants Research | Sreeramu B.S.,University of Agricultureal science
Indian Journal of Horticulture | Year: 2011

An investigation was conducted to find out the effect of different organic manures on growth, yield and quality of makoi (Solonum nigrum L.). The experiment comprised of 13 treatments consisting of different combinations of organic manures (FYM @ 10, 15 and 20 t, vermicompost @ 0.5 and 1.0 t and neem cake @ 0.5 and 1.0 t ha -1 ) and FYM 10 t + NPK @ 100:50:50 kg ha -1 through inorganic fertilizers. Maximum plant height, number of branches per plant, plant spread, number of leaves per plant, leaf area and total dry matter accumulation were recorded with the application of FYM 20 t + vermicompost 1.0 t + neem cake 1.0 t ha -1. Fresh and dry herbage yield were also maximum with the same treatment. However, application of FYM 20 t + vermicompost 1.0 t + neem cake 0.5 t ha -1 resulted in maximum alkaloid content and alkaloid yield, whereas, the highest net returns of Rs. 34,000 ha -1 and benefit to cost (B:C) ratio of 1.80 was recorded with the application of FYM 20 t + vermicompost 1.0 t + neem cake 1.0 t ha -1.


Kawane A.,Medicinal and Aromatic Plants Research | Oza D.,Medicinal and Aromatic Plants Research | Geetha K.A.,Medicinal and Aromatic Plants Research | Reddy M.N.,Gujarat University | Maiti S.,Medicinal and Aromatic Plants Research
Open Access Journal of Medicinal and Aromatic Plants | Year: 2015

Commiphora wightii commonly known as Guggul is an important medicinal plant that contains oleo gum resin which is used as antiarthritic, hypocholesterolaemic and hypolipidaemic agents. It is an apomictic species native to India (Gujarat, Rajasthan) and Pakistan. Due to over exploitation, it is enlisted under the ‘data deficient’ category in the IUCN Red Data Book. However, very little information is available about its reproductive biology. Knowledge of reproductive biology of any plant species is crucial for its genetic improvement and planning for effective conservation and management of genetic resources. The present paper reports our findings on the flower opening pattern, pollen grain viability, stigma receptivity, flowering behaviour and fruit set in C. wightii. The study showed that flowers do not open in the night hours and maximum flower opening occurs in the morning hours up to 8.00 am. Maximum stigma receptivity was observed on the first day of flower opening. Polymorphism in pollen grain size was observed and a significant difference in pollen grain size was observed between hermaphrodite and male accessions. Maximum number of pollen grains is produced by hermaphrodite accessions. Pollen viability ranged from 35.07 to 60.85% among the accessions. Flowering studied in 37 accessions showed wide variability among the accessions. Peak flowering was observed from November to April. Based on data on peak flowering time, the accessions were grouped into profusely, medium and shy flowering types. The fruit set percentage was very low among the accessions; it remained between zero and 5%. © 2015, Medicinal and Aromatic Plants Association of India. All rights reserved.


Shankara Swamy J.,Medicinal and Aromatic Plants Research | Maiti S.,Medicinal and Aromatic Plants Research | Kumar P.,Central Potato Research Institute Campus | Kumar P.,Medicinal and Aromatic Plants Research
Vegetos | Year: 2012

Kalmegh (Andrographis paniculata) is an important medicinal herb in India and it is widely used as hepatoprotective, immunomodulator, anti-inflammatory, anti-malarial, anti-diarrhoeal and with beneficial effect on respiratory and cardiovascular systems. Preliminary standardization was done in 2007 with a detailed study in 2008-2009. Optimum numbers of seedlings for transplantation were produced with 3 g seed/m row spaced at 15 cm distance and soil application of 4 kg FYM m2. Nursery beds under shade-net supported better seedling growth. A shed net with 75% light reduction helped in early production of maximum number of seedlings ready for transplanting which would be helpful in preparedness for early monsoon. Hence, nursery beds may be prepared under the 75% shade-net between last week of May and beginning of June with afore mentioned seed rate, spacing and nutrient dose followed by mulching to produce more than 600 and 750 seedlings ready for transplanting from 1m2 area by 35 and 42 days after sowing, respectively.


Samantaray S.,Medicinal and Aromatic Plants Research | Maiti S.,Medicinal and Aromatic Plants Research
Indian Journal of Horticulture | Year: 2010

Efficient plant regeneration in Aloe barbadensis Mill. was achieved using callus derived from shoot meristem. Organogenesis was maximum on MS medium supplemented with 2.5 mg/I BA, 0.25 mg/I IAA. Though sucrose (2%) showed maximum shoot bud regeneration capacity, D-glucose had an intermediatory effect, however, fructose and maltose had no effect at all. Of the conditions tested shoot bud regeneration was highest (82.8) under 12 h illumination. The regenerative potential was stable up to 12 sub-cultures. The rate of shoot bud regeneration was dependent on the concentration of hormones in the nutrient media. Regenerated shoots rooted on half-strength MS medium containing 0.1 mg/l IAA and 1% sucrose. The in vitro derived plantlets were hardened in the nethouse with 75% light and successfully established in soil.


Umesha K.,University of Agricultural Sciences, Bangalore | Smitha G.R.,Medicinal and Aromatic Plants Research | Sreeramu B.S.,University of Agricultural Sciences, Bangalore | Waman A.A.,University of Agricultural Sciences, Bangalore
Journal of Applied Horticulture | Year: 2011

The influence of different organic manures, bio-fertilizers and green manures on growth, yield and glycoside content of stevia (Stevia rebaudiana) was studied over a period of three years (2004-2007). Various organic supplements viz., farm yard manure (15 and 25 t ha -1), vermicompost (1 and 2 t ha -1), neem cake (0.5 and 1 t ha -1) and bio-fertilizers viz., Azospirillum, phosphorus solubilizing bacteria and VAM (each @ 0 and 10 kg ha -1) were applied. The results of eleven harvests revealed that all the growth parameters viz., plant height, number of branches and plant spread were influenced by various organics and bio-fertilizers and showed variation from season to season (harvest to harvest) and plants responses did not followed a definite trend. Dry leaf yield during first (6.16 t ha -1) and second year (4.34 t ha -1) of cropping was maximum with the treatment receiving FYM (25 t ha -1) + vermicompost (2 t ha -1) + neem cake (1 t ha -1) + bio-fertilizers (10 kg ha -1) and differed significantly. However, in third year of cropping the treatments had no significant influence on the dry leaf yield. Both the glycosides i.e., stevioside (7.8 %) and rebaudioside content (3.4 %), and glycoside yield were also highest in the above said treatment.

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