Tea Garden Research Articles

Studies on Air Borne Fungi of Tea Seed Orchard at Gaya Ganga Tea Estate of Darjeeling District, West Bengal

Air borne microorganisms obtaining tremendous interest as they play a significant role in the plant, animal and human health. Studies on aerobiology can help to recognize the resources, take-off, passive deposition and impaction of these microorganisms on the plant life. So far, no work has been reported on the air spora of the seed orchards of tea garden. This work aimed to observe flowering period and the diversity of air mycoflora prevalent in six biclonal tea seed orchards (TS: 569, TS: 491, TS: 557, TS: 520, TS: 463 and TS: 462). A total five species were recorded. Penicillium sp is found to be dominant over the other recorded species. The maximum population of mycoflora (CFU 1580/M3) was recorded under TS: 569 and the lowest (CFU 180/M3) under TS: 463. Air mycoflora fluctuated under TS: 491, TS: 557, TS: 520 and TS: 462 and were CFU/M3 740, 540, 340 and 380 respectively.

First Report of Botrytis cinerea Causing Gray Mold on Tea (Camellia sinensis) in China.

Tea (Camellia sinensis (L.) O. Kuntze) is an important economic crop cultivated in China. In March 2019, leaf blight symptoms were observed on tea trees (C. sinensis cv. Fuding-dabaicha) in Enshi City (30º02'66" S, 109º01'56" W), Hubei Province (Fig. 1A). The disease occurred on the senescent flowers and mature leaves. The average disease incidence was approximately 10% of plants in the surveyed 30 ha tea garden. Initial symptoms consisted of brown lesions, which expanded and became covered with gray mold, followed by abscission. To identify the pathogen, 20 symptomatic leaves were collected and 0.5 cm2 diseased leaf pieces were excised and surface sterilized by immersion in 1.5% sodium hypochlorite (NaOCl) for 2 min, and rinsed three times in sterilized distilled water. The leaf pieces were allowed to dry, placed on potato dextrose agar (PDA) plates, and incubated at 20°C under 12h fluorescent light. The fungus formed gray to grayish brown colonies (Fig. 1B) and produced conidia after 1 week. The isolate was purified by single spore isolation. The conidia were one-celled, ellipsoid or ovoid, almost colorless, with a size range of 5.3 to 10.24 × 5.2 to 8.1 μm (n = 50) (Fig. 1C). The sclerotia produced in culture were black, round or irregular in shape and 1.3 to 2.2 × 2.0 to 3.3 mm (average 1.8 × 2.3 mm) in size. Morphological characteristics of these isolates matched the description of Botrytis spp. (Hong et al. 2001). Representative isolate LCHM was selected for molecular identification based on DNA sequencing of the ITS region of rDNA and three nuclear protein-coding genes (G3PDH, HSP60 and RPB2) (Staats et al. 2005). BLAST analysis showed that isolate LCHM (GenBank Acc. Nos. MN448502, MN448500, MN433708 and MN448501 for ITS, G3PDH, HSP60 and RPB2, respectively) shared 99 to 100% identity with B. cinerea (GenBank Acc. Nos. MH316147.1, MG846500.1, MG846504.1 and MG846510.1, respectively), which suggested that isolate LCHM belongs to B. cinerea. This identification was further confirmed by phylogenetic analysis based on combined DNA sequence data of G3PDH, HSP60 and RPB2 (Fig. 2). For the pathogenicity test, needle-wounded, attached leaves on 1-year-old C. sinensis cv. Fuding-dabaicha plants were inoculated with mycelial plugs (6 mm diameter from 2-day-old PDA cultures) or a conidial suspension (20 μL, 1×106 conidia/ml in half strength potato dextrose broth) of isolate LCHM on three plants per treatment (six leaves). The control treatments were also wounded, but only treated with agar plugs or half strength PDB. All inoculated plants and controls were incubated in a growth chamber (20°C, 90 ± 10% RH). Leaves inoculated with mycelial plugs, whether wounded or not, showed brown necrotic lesions around the agar plugs after 2 days (Fig. 1D, E), whereas conidial inoculations of wound sites showed necrotic lesions after 6 days (Fig. 1 F, G). Non-wounded leaves inoculated with conidia and all the control treatments remained symptomless. B. cinerea was reisolated from the inoculated leaves and isolates were morphologically similar to the original cultures. Gray mold of C. sinensis caused by B. cinerea has been recorded in Japan, Turkey, and Brazil (Hamaya 1981, Aziz and Harun 2010, Pereira and Mio, 2020). To our knowledge, this is the first report of gray mold caused by B. cinerea on C. sinensis in China. B. cinerea may cause economic losses of tea, therefore, more surveys in other tea-growing regions should be done to specifically search for this disease.

Cardiovascular risk factors of tea garden workers from a district of West Bengal, India

Background and Aims: Cardiovascular risk factors in tea gardens have been seldom studied. The risk factors for these marginalized population needs attention for public health interventions. The current research aimed to assess the risk factors for cardiovascular diseases among tea garden workers in the Alipurduar district of West Bengal, India. Methods: An observational, descriptive cross-sectional study was conducted among 463 tea garden workers working in a district of West Bengal, India to assess risk factors for cardiovascular diseases. Proforma was filled along with clinical examination and evaluation of records. Diseases classified as per ICD- 10. Statistical analysis was done with Microsoft excel 10. Results: Most of the study participants were from marginalized society (81.2% tribals). 76% were female. More than 50% (55.9%) were illiterate. 67.2% were from lower income group. As per ICD-10 classification, 24.2% have some non-communicable disease. Risk factors like addiction was quite prevalent (67.2% for tobacco and 57.1 % for Alcohol). Conclusions: Risk factors for cardiovascular disease are quite prevalent among the marginalized population, which needs high priority for intervention.

Current status of stream water quality around selected Tea Gardens from Southern Western Ghats, Tamil Nadu, India – A case study

In this study, metal concentration in tea garden-associated stream water samples from the south Western Ghats of Tamil Nadu was evaluated using ICP-MS to know the current status of pollution level, sources of pollution, probable water quality, and impacts of heavy metals. Stream water pollution of hill regions communities using the heavy metal pollution index, principal compound analysis, and Pearson correlation analysis were measured. In addition, for this purpose, water phy-chem parameters were also measured, such as (pH, temperature, conductivity, salinity, and TDS) using a pH meter. PO4 and F- UV-spectrophotometer, Na, K, and calcium (flame photo meter), NO3- NO3-N (Electronic method-horiba), and turbidity meter to evaluate the stream-water quality were used, and heavy metals, particularly Al, As, Cd, Fe, Cr, Cu, Zn, Pb, Ni, and Mn are analyzed as heavy metal pollutions. The phy-chem average values of pH, Temp, EC, Tds, Salinity, alkalinity, cod, bod, do, chloride, calcium, C. hardness, M. hardness, T. hardness, N-Nitrogen, Phosphate, Potassium, Sodium, Turbidity, Fluoride, Sulphate, and Sulphur are found 8.13, 27.57 °C, 218, 111.67, 78.67, 70.39, 2029, 5.70, 3.83, 70.83, 737, 62.30, 166.11, 679, 1132, 149, 11, 28.33, 4.44, 07, 178, 180 respectively. Heavy metal concentrations, including aluminum, arsenic, cadmium, iron, chromium, copper, zinc, lead, nickel, and manganese, are detected at 32, 7.2, 6.24, 96.4, 0.00, 0.00, 40, 0.00, 0.00, 30 μg/L, respectively. Concentrations of studied heavy metals, particularly, Mn, Ni, Cd, and Fe, have measurements that are greater than the permissible standard limits of BIS, WHO.

A study on management practices of model schools of tea garden areas of Assam

A study on management practices of model schools of tea garden areas of Assam

Challenges and Opportunities of Gender Equality and Social Work Intervention among Youth Living in Tea Gardens of Cachar, Assam

Challenges and Opportunities of Gender Equality and Social Work Intervention among Youth Living in Tea Gardens of Cachar, Assam

A STUDY ON INSTITUTIONAL ENVIROMENT OF THE MODEL SCHOOLS OF TEA GARDEN AREAS OF LAKHIMPUR DISTRICT, ASSAM

The National Policy on Education 2020 aims to transform the Indian education system by making it more inclusive, holistic and flexible. In continuations the Government of Assam launched a significant initiative in October 2020 to establish 119 Model Schools across major tea growing districts through Public-Private- Partnership (PPP). By May 2022, 97 of these schools were inaugurated marking a pivotal step towards providing quality education within tea garden community. The present study, through qualitative research methods , examined the institutional environment in enhancing Enrolment, Attendance and Community participation in the Model Schools in the Tea Garden areas of Lakhimpur district, Assam.

A STUDY ON INSTITUTIONAL ENVIROMENT OF THE MODEL SCHOOLS OF TEA GARDEN AREAS OF LAKHIMPUR DISTRICT, ASSAM

The National Policy on Education 2020 aims to transform the Indian education system by making it more inclusive, holistic and flexible. In continuations the Government of Assam launched a significant initiative in October 2020 to establish 119 Model Schools across major tea growing districts through Public-Private- Partnership (PPP). By May 2022, 97 of these schools were inaugurated marking a pivotal step towards providing quality education within tea garden community. The present study, through qualitative research methods , examined the institutional environment in enhancing Enrolment, Attendance and Community participation in the Model Schools in the Tea Garden areas of Lakhimpur district, Assam.

Impact of Wage Digitization on the Savings and Financial Inclusion of Tea Garden Workers of West Bengal (India)

Impact of Wage Digitization on the Savings and Financial Inclusion of Tea Garden Workers of West Bengal (India)

First ATR-FTIR Characterization of Black, Green and White Teas (Camellia sinensis) from European Tea Gardens: A PCA Analysis to Differentiate Leaves from the In-Cup Infusion.

ATR-FTIR (Attenuated Total Reflectance Fourier Transform InfraRed) spectroscopy, combined with chemometric, represents a rapid and reliable approach to obtain information about the macromolecular composition of food and plant materials. With a single measurement, the chemical fingerprint of the analyzed sample is rapidly obtained. Hence, this technique was used for investigating 13 differently processed tea leaves (green, black and white) all grown and processed in European tea gardens, and their vacuum-dried tea brews, prepared using both hot and cold water, to observe how the components differ from tea leaf to the in-cup infusion. Spectra were collected in the 1800-600 cm-1 region and were submitted to Principal Component Analysis (PCA). The comparison of the spectral profiles of leaves and hot and cold infusions of tea from the same country, emphasizes how they differ in relation to the different spectral regions. Differences were also noted among the different countries. Furthermore, the changes observed (e.g., at ~1340 cm-1) due to catechin content, confirm the antioxidant properties of these teas. Overall, this experimental approach could be relevant for rapid analysis of various tea types and could pave the way for the industrial discrimination of teas and of their health properties without the need of time-consuming, lab chemical assays.

Assessment of Kerala Tourism Industry-An Economic Perspective

The paper throws a light on the status of tourism sector of Kerala, and as a major source of economic development contributor. It is positioned as ‘God’s Own Country’ by the Department of Tourism. Every year’s millions of people are attracted by the State due to its beautiful beaches, hills stations, backwater cannels, tea gardens, ethereal waterfalls, wildlife sanctuaries, festivals and friendly people. Kerala is one of the most popular destinations for both national and international tourists in India. September to March is the ideal time for visiting the state. Kochi City, Munnar, Thiruvananthapuram, Wayanad, and Guruvayoor are popular destinations of tourists. Foreign exchange earnings from the tourism sector have been in the increasing trend since last decade, except the duration of the covid effect. It is observed that the tourism sector is vital for the economy of Kerala and the initiatives taken by the Kerala Tourism Development Corporation would go a long way facilitating the development of the state. A study has been conducted to know and understand the current status of both domestic and international tourism vis-à-vis pre and post covid scenario. Simple average, percentage, and ranks are used to present and analyse the data for common understanding of the objectives. Advanced regression statistics like R square value analysis and correlation analysis is used to draw statistical inferences in the study. The authors in this paper genuinely feel that, the Hypotheses Test Results are expected to throw further light upon the utility of the study to the Academicians, Researchers, Policy Makers, and Industry Personnel as various means of Business Development and Socio Economic Contribution.

Ancient tea gardens play important role on in situ conservation of epiphytic orchids in southwest Yunnan, China

Southwest Yunnan of China is the homeland of famous Pu’er tea and preserved the largest area of ancient tea gardens in the world. The ancient tea gardens keeping a large number of shade trees have prevailed for hundreds of years persist and formed typical agroforestry systems. To assess the potential of the ancient tea gardens for in situ orchid conservation, in this study, three typical ancient tea gardens located at different elevations, JiNuo Mountain ancient tea garden (JNM, 1150 m asl.), JingMai Mountain ancient tea garden (JMM, 1345 m asl.), and LaoBanZhang ancient tea garden (LBZ, 1787 m asl.), were selected to investigate species diversity and composition, and conservation status of all orchids. Floral visitors, reproductive success, and seedling recruitment of selected epiphytic orchids were also investigated from 2019 to 2021. We identified 88 orchid species (85 epiphytic and 3 terrestrial orchids) in 33 genera in the three ancient tea gardens, including one critically endangered species (CR), four endangered species (EN) and 16 vulnerable species (VU). Although the orchid species diversity was not significantly different, the species composition varied greatly among the three ancient tea gardens. For the randomly selected 40 epiphytic orchid species, all species could set fruits naturally, and the natural fruit-sets ranged from 1.11 ± 6.0% to 62.07 ± 15.4% with great variations among species and years. For 60 epiphytic orchid species observed, seedling recruitment for 26 species (43.3%) were observed and confirmed. Among 42 insect visitors observed, 21 species including bees, flies and ants, were confirmed as effective pollinators to 16 epiphytic orchids. These results revealed that the ancient tea gardens maintained high species diversity of epiphytic orchids and provided pollinator services for reproductive success and suitable micro-environment for seed germination and seedling recruitment. We strongly suggested that the ancient tea gardens in the area could serve as important supplements for in situ conservation of epiphytic orchids.

Beyond the leaves: Unveiling the societal impact of research on the self-perceived quality of life among indigenous female tea garden workers

Most indigenous women in the sub-Himalayan region of Northern Bengal have been engaged in wage labor within tea gardens. The payment system within these gardens has often lacked transparency, resulting in these workers receiving compensation below the legal minimum wage. This persistent uncertainty has had a profound impact on social behavior and self-satisfaction among the workforce. Notably, no prior study has explored the quality of life experienced by these women workers through a comprehensive examination of their perceptions, determinants, and narratives. The study, conducted in a district of West Bengal, meticulously selected 10 Tea Gardens (TGs) for investigation. This research project employs a mixed type of ethnographic data collection, encompassing both qualitative and quantitative methods, and utilizes the WHOQOL-BREF questionnaire. The findings of the study reveal a consistent pattern of deprivation and inequality experienced by tribal women at various stages of their lives. Furthermore, the research outcomes have provided valuable insights into the overarching societal impacts, encapsulated as follows: 1) the self-reported quality of life sense of the tribal women merely touched by other researchers signifies that these women rarely lived a decent life with utmost priority in every aspect, such as their physical strength, psychological health, and societal well-being; 2) Policymakers can address the factors contributing to the challenges faced by these women, fostering improvements in their overall quality of life.

The Paradox Of Indigeneity And Question Of Identity Of The Adivasi Community Of Assam

The Adivasi in India and Assam are traditionally known as the first people or indigenous people since pre-historic (stone) age migrating in different periods of time from different regions. However, Adivasi were among the first group of people to arrive in India before any other communities such as the Aryans, Dravidians, and Mongolians etc. The schedule tribe’s status for the Adivasi in Assam which has been a longstanding struggle in India offers certain rights –based legal benefits in the form of political representation, reservation and socio-economic subsidies. The most common perception against granting Schedule Tribes status to the Adivasi in Assam is their migratory history, however, in the tea gardens the fact that they came into the state as indentured labourers to work and their contribution to the economy of the state of Assam has been substantial. The Adivasi of Assam, branded as the Tea Garden Tribes, generally prefer to be called as Tea Tribes. Embracing Adivasi nomenclature is a deliberate move on the part of the tea tribes to assert their tribal identity as also to represent their collective demand for indigenous rights, including the recognition for achieving the status of ‘Schedule Tribe’. The paper is a modest attempt to address this debate.

A highly effective SERS platform formed by the fabrication of Ag@ZIF-8@Au nanoparticles for rapid detection of acetamiprid in environment

The unreasonable spraying and random migration of acetamiprid may cause pollution of crops, soil and water resources in the environment, resulting in threatening ecosystem and human health. However, the monitoring of acetamiprid using mass spectrum in the environment encounters challenges due to high-cost instruments and complex processing time. Herein, we fabricated a rapid and reliable SERS method based on Ag@ZIF-8@Au platforms for tracing acetamiprid residues in the environment. In this method, a MOF material named ZIF-8 is coated with silver nanoparticles and distributed internally between AgNPs and AuNPs to enhance Raman signal, which can enrich pesticide molecules into the hotspots area provided by noble material and helps avoid the oxidation of silver nanoparticles. High sensitivity (LOD of 9.027 × 10-10 M for acetamiprid, and SERS enhancement factor of 4.3 × 107), excellent reproducibility (6.496% or 7.198% RSD for 30 random points) and superior stability (3.127% RSD for 6 weeks) were achieved using the proposed method. Acetamiprid with concentrations from 10-4 to 10-9 M were successfully detected by SERS method. Furthermore, the linear detection models of acetamiprid in different environment matrices (lake water, tea leaves, tea garden soil, oranges and oranges orchard soil) were established and all the correlation coefficient (R2) were higher than or equal to 95%, indicating the excellent adaptability of Ag@ZIF-8@Au platform in environment. The randomly spiked concentrations of acetamiprid were also tested with good recovery values and low relative error values, further confirming the reliability of the detection method.

The struggle of young widows in the tea estates of Bangladesh: a qualitative inquiry

ABSTRACT This study aims to investigate the predicament of young widows residing in the tea estates of Bangladesh. The study used qualitative methods to understand how young widows perceive and interpret their experiences of widowhood. Nine young widows were chosen for the in-depth semi-structured interviews using referral sampling. Data were analysed thematically, which was then critically explored and contrasted with the previous literature. The results demonstrated that young widows in the tea gardens struggled to address the psychological, economic, health care, educational, and recreational demands of their children due to declining resource bases. Additionally, young widows face sexual harassment, emotional disturbances, financial insecurity, and gender-sensitive discriminatory cultural practices. The paper advocated for expanding the social safety net in the tea gardens and ensuring land ownership among the tea gardeners.

Research on the Detection Method of Organic Matter in Tea Garden Soil Based on Image Information and Hyperspectral Data Fusion.

Soil organic matter is an important component that reflects soil fertility and promotes plant growth. The soil of typical Chinese tea plantations was used as the research object in this work, and by combining soil hyperspectral data and image texture characteristics, a quantitative prediction model of soil organic matter based on machine vision and hyperspectral imaging technology was built. Three methods, standard normalized variate (SNV), multisource scattering correction (MSC), and smoothing, were first used to preprocess the spectra. After that, random frog (RF), variable combination population analysis (VCPA), and variable combination population analysis and iterative retained information variable (VCPA-IRIV) algorithms were used to extract the characteristic bands. Finally, the quantitative prediction model of nonlinear support vector regression (SVR) and linear partial least squares regression (PLSR) for soil organic matter was established by combining nine color features and five texture features of hyperspectral images. The outcomes demonstrate that, in comparison to single spectral data, fusion data may greatly increase the performance of the prediction model, with MSC + VCPA-IRIV + SVR (R2C = 0.995, R2P = 0.986, RPD = 8.155) being the optimal approach combination. This work offers excellent justification for more investigation into nondestructive methods for determining the amount of organic matter in soil.

A Comparative Study on Workers Job Satisfaction towards Public and Private Limited Tea Garden in Golaghat District, Assam

The present study discusses the Job satisfaction level between public and private Ltd. tea garden workers in Golaghat district of Assam, India. Job satisfaction which refers to the positive or favourable attitudes towards their work. Satisfactory attitude encourages a worker to work efficiently while dissatisfaction leads to disappointment of instructive objective. A questionnaire on Job satisfaction developed by Dr. B. C. Muthayya (1984) was administered for data collection. A total number of 190 workers were selected for data collection. Out of 190 respondents 117 respondents were Public Ltd., and 73 respondents were from private tea garden. Out of 117 Public limited, 46 were male and 71 female. Similarly, out of 73 Private tea garden workers, 34 were male and 39 female. The main objective of this study is to find out the significant difference between public and private Ltd. tea garden workers. SPSS (Statistical Package for Social Sciences) were employed for data analysis. Data were analyzed based on descriptive statistics including ‘t’ test to see the significant differences between two public and private Ltd. tea garden workers, and Inferential statistics –ANOVA to see the significant differences between four groups of employees ( Public male &female and Private male and female). In terms of job satisfaction, the ‘t' results demonstrate that there is a considerable difference between public and private, public male and female, and private male and female tea garden workers. ANOVA result shows the significant difference among the four groups. Duncan’s multiple range tests also depicts the differences between all pairs of means except the group of public female and private male. The obtained results were compared to those of other similar studies.

Jewish Popular Music in Galicia: Karol Rathaus’ Recollections of Chune Wolfsthal

Abstract Eminent Polish composer Karol Rathaus (1895–1954) left behind an essay dedicated to his uncle Chune Wolfsthal (1851–1924). In this text, Rathaus recalls his childhood and adolescent years in (Austria-Hungary’s crown land of ) Galicia. His memories of Wolfsthal, a famous klezmer and operetta composer active in the late nineteenth and early twentieth centuries, provide an opportunity to recollect the now non-existent world of Jewish amateur musicians working in Tarnopol and Lwów before World War II. Those musicians performed in synagogues, at family events and social functions, in cafés and tea gardens. Some of them, including Chune, became involved in the activity of the then emerging Jewish theatre, which was a part-vulgar, part-artistic phenomenon.

Considering Relationship between Temperature Sensitivity of Soil Organic Carbon Decomposition with some of the Soil Properties and Topographic Indices in Guilan Tea Gardens

Considering Relationship between Temperature Sensitivity of Soil Organic Carbon Decomposition with some of the Soil Properties and Topographic Indices in Guilan Tea Gardens