Response of organic manures on growth and quality parameters of Artemisia annua L. cv. CIM Arogya under tarai conditions of Uttarakhand
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Date
2021-03
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G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand)
Abstract
The present study was conducted to analyze the effect of organic manures (Farm Yard Manure, 1Vermicompost T10: 10 ton ha-1 Farm yard manure+ 5 tonne ha-1 Poultry manure,T11: 5 tonne ha-1Vermicompost + 5 tonne ha-1Poultry manure and T12: Inorganic manure (NPK) with three replication, during 2017-18 and 2018-19. The results of the experiments indicated that T8 applied treatment was superior over all the treatments, exhibiting increased plant height, stem diameter, number of branches and biomass during both the years of study. For the evolution of antioxidants, leaf powder was extracted in different solvents i.e., aqua-methanol, aqua-ethanol, water and n-Hexane and the maximum extract yield was comparatively higher in water extract. The antioxidant activities was measured by DPPH (%) and FRAP (μg VCE/mg extract) and it is higher in water followed by aqua-methanol > aquaethanol > n-Hexane. DPPH (%) activity and FRAP (μg VCE/mg extract) which were maximum in T8 applied plants and minimum in T1 (no manure application). The Total Phenol Content (μg GAE/mg extract) and the Total Flavonoid Content (μg QE/mg extract) was maximum in T3 (10 tonne ha- 1Vermicompost) and minimum in T1. The maximum artemisinin content (%) was recorded in T3 (0.95) and minimum in T1 (0.50). The maximum oil content (%) in A. annua cv. CIM Arogya inflorescence was recorded in plants applied with 10 tonne ha-1Farm yard manure + 5 tonne ha- 1Vermicompost+5 tonne ha-1Poultry manure, being 1.8 % and 1.4% in 2017-18 and 2018-19, respectively. However, minimum oil content (%) was recorded in without manure application (T1) was 0.72 % and 0.64% in 2017-18 and 2018-19, respectively. The essential oil obtained from inflorescence was subjected to GC-MS analysis for identification of bioactive compounds present in essential oil. The major compounds were, 1-8 cineol, camphor, camphene, sebinene, hotrienol, and β-
ocimene present in essential oil. Artemisia ketone present only in T3. Based on two years of study, it can be concluded that the crop manured with Vermicompost (10 tonn ha-1) yielded higher amount of artemisinin content (%) compared to other Vermicompost and Poultry manure) on morphological and biochemical parameters of Artemisia annua L. cv. CIM Arogya. The field experiments were conducted at Medicinal Plants Research &
Development Centre, of G. B. Pant Pantnagar. The experiments were carried out in Randomized Block Design, having 12 different treatments viz. T1: Control,T2: 20 tonne ha-1Farm yard manure,T3: 10 tonne ha-1Vermicompost,T4: 10 tonne ha-1Farm yard manure,T5: 5 tonne ha- 1Vermicompost,T6:10 tonne ha-1Poultry manure,T7:5 tonne ha-1Poultry manure,T8: 10 tonne ha- 1Farm yard manure + 5 tonne ha-1Vermicompost+5 tonne ha-1Poultry manure,T9: 1o tonne ha-1Farm yard manure+ 5 tonne ha-
organic manures application.