Effect Of Different Consortia Of Bioinoculants On The Growth And Nutrient Content Of Andrographis Paniculata
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Abstract
Andrographis paniculata is an endangered member of the family Acanthaceae. The plant is used in many types of herbal medicines for liver disorders and also found to have anti-HIV properties. Various combinations of bioinoculants were used to evaluate the efficacy of the bioinoculants on the growth, biomass yield, nutrient content and mineral element content of the plant. The bioinoculants used were Glomus mosse, Glomus fasiculatum, Azotobacter, Aspergillus awamori, Frateuria aurentia and biocotrol agent Trichoderma viride. Combined inoculation of Glomus fasiculatum, Azotobacter, Aspergillus awamori, Frateuria aurentia and Trichoderma viride resulted in maximum biomass yield compared to control and other combinations whereas maximum root length was achieved in Frateuria aurentia alone treated plants. More than two fold increase in NPK concentration was observed in the plants treated with the above mentioned combination of bioinoculants. Mineral elements viz., Calcium and Magnesium content was highest in the combined inoculation whereas no change was observed in the Sodium content which was same in all the plants
Keywords: Bioinoculants, Andrographis paniculate , Glomus, Azotobacter, Aspergillus awamori, Frateuria aurentia ,Trichoderma viride
Results: Cent percent germination was observed in seeds treated with 1N HCl for 10min and 0.1%GA3 for 20min whereas 1N HCl (10min) and 0.1% IBA(20 min) showed 95% germination. Viability of seedlings was maximum in 1N HCl and 0.1% IBA treated seedlings. Combined inoculation with T2- Glomus fasciculatum + Azotobacter +Aspergillus awamori + Frateuria aurentia + Trichoderma viridae showed significant increase in plant height of kalmegh followed by T5 that is Frateuria aurentia and T1-Glomus mosse + Azotobacter +Aspergillus awamori +Fraturia aurentiar +Trichoderma viridae compared to single inoculation and uninoculated control.
Conclusion: As the plant is critically endangered and is in great demand a consortia of microbes viz., Glomus fasciculatum + Azotobacter +Aspergillus awamori + K solubiliser +Trichoderma viridae can be effectively used to get better growth and yield of Andrographis paniculata and thereby reducing the exploitation of the plant from the wild and conserving them in their natural habitat.