Disentanglement of the secrets of aluminium in acidophilic tea plant (Camellia sinensis L.) influenced by organic and inorganic amendments. (June 2019)

• Record Type: Journal Article
• Authors: Bora, Krishnamoni; Sarkar, Dibyendu; Konwar, Kaberijyoti; Payeng, Bobita; Sood, Kaushal; Paul, Ranjit Kumar; Datta, Rupali; Das, Sampa; Khare, Puja; Karak, Tanmoy
• Is Part Of: Food research international. Volume 120(2019)
• Page Start: 851
• Page End: 864
• Publication Date: 2019-06
• Subjects: Aluminium localization -- Gas exchange parameters -- Leaf pigments -- Soil -- Tea infusion -- Tea Research Association Heavy Metal Contamination Index; ATM Atmospheric pressure -- C Leaf stomatal conductance -- CO2(out) The amount of CO2 at the outlet of the leaf chamber -- CO2(in) The amount of CO2 at the inlet of the analyzer -- E Transpiration rate -- FAO Food and Agriculture Organization -- Flow The set flow rate of the analyzer -- H2Oin The amount of H2O at the inlet of the analyzer -- H2Oout The amount of H2O at the outlet of the leaf chamber -- int_CO2 Internal CO2 -- Internal T Temperature of the analyzer environment -- MSWC Municipal solid waste compost -- PAR Photosynthesis Active Radiation -- Pn Net photosynthesis rate -- RHin Inlet relative humidity -- RHout outlet relative humidity -- Tair Temperature of the ambient air in the leaf chamber -- Tleaf Temperature of the leaf as measured by infrared temperature sensors -- TRAHMCI Tea Research Association Heavy Metal Contamination Index -- VPD Vapor pressure deficit -- W Mass flow rate -- WHO World Health Organization; Food -- Analysis -- Periodicals; Food industry and trade -- Periodicals; Food industry and trade -- Canada -- Periodicals; Food Technology -- Periodicals; Food -- Periodicals; Food-Processing Industry -- Periodicals; Aliments -- Industrie et commerce -- Périodiques; Aliments -- Industrie et commerce -- Canada -- Périodiques; Aliments -- Recherche -- Périodiques; Food industry and trade; Canada; Periodicals; Electronic journals; 664.005
• DOI: 10.1016/j.foodres.2018.11.049
• Languages: English
• ISSNs: 0963-9969

Abstract

Abstract: Field experiment was carried out for four years in mature tea ( Camellia sinensis L.) growing plot to investigate the impacts of different doses of inorganic and organic fertilizers on aluminium (Al) distribution pattern in soil and different parts of tea plant, leaf pigment concentration, gas exchange parameters, as well as the yield of tea. Results indicated that application of 6 × 10 3 kg compost ha −1 significantly increased the dry matter yields of tea. Pluckable shoot of tea plant were markedly stimulated in the presence of Al irrespective of treatment imposed. Furthermore, Al induced growth stimulation in tea plant was facilitated by higher photosynthesis rate as well as gas exchange parameters. For the present experiment, Tea Research Association Heavy Metal Contamination Index (TRAHMCI) decreases with increase the fertilizer dose and all the experimental soils were found non-polluted with respect to Al. Localization of Al in the root apex predominantly accumulated in the cortex. The translocation of Al from root to shoot was driven by the gradient in hydrostatic pressure and water potential. In all tea infusions influenced by different treatments, Al concentrations were within the maximum permissible limit of Al in drinking water by Provisional Tolerable Weekly Intake (PTWI) established by the Joint FAO/WHO Expert Committee on Food Additives (JECFA, 2 mg kg −1 bw −1 ) and the tolerable weekly intake (TWI) established by EFSA (European Food Safety Authority, 1 mg kg −1 bw −1 ). Application of stepwise multiple regression model indicates that around 75% of the variability in the yield of the crop can be expressed by the selected parameters under study. The Hierarchical cluster analysis reveals that two homogenous groups of treatment can be formed based on all the studied parameters. Highlights: Compost amendments at moderate doses could be beneficial for tea yield Beneficence of Al for the growth of tea plants is likely Higher concentration of soil Al improves gas exchange parameters from tea leaf The root apex predominantly accumulated Al in the cortex Validation of TRAHMCI proposed byKarak et al. (2017b) (J. Haz. Mat. 338:250–264) was evaluated for Al Graphical abstract: Unlabelled Image