Effect of Selenium on the Yield and Quality of Green Tea Leaves Harvested in Early Spring

2003 ◽  
Vol 51 (11) ◽  
pp. 3379-3381 ◽  
Author(s):  
Qiuhui Hu ◽  
Juan Xu ◽  
Genxin Pang
Keyword(s):  
Green Tea ◽  
Early Spring ◽  
Tea Leaves ◽  
Yield And Quality ◽  
Green Tea Leaves

scholarly journals Key Elements of Technology Package Influencing Annual Tea Production of Small Tea Growers (STGS): Insight from Biswanath District of India

2019 ◽  
Vol 8 (4) ◽  
pp. 9799-9802
Keyword(s):  
Water Supply ◽  
Green Tea ◽  
Small Scale ◽  
Tea Leaves ◽  
Tea Plantation ◽  
Environment And Health ◽  
Green Tea Leaves ◽  
Tea Production ◽  
Artificial Water

Though the tea sector of Assam is primarily dominated by the estate sector comprising of large tea gardens, the relevance of small scale tea plantation can never be denied as nearly 30% of the state’s tea production is contributed by Small Tea Growers (STGs). In fact the quality of green tea leaves produced by the Small Tea Growers (STGs) has outclassed that of the tea leaves produced by the estate sector. Since tea plantation is a technology intensive practice, the growers are bound to adopt certain technology components like artificial fertiliser, artificial pesticide, HYV clone, artificial water supply facility, etc. All these elements constitute a technology package which helps the tea growers to reap greater benefit in tea cultivation. This study is a humble attempt to investigate the marginal impact of each element of the technology package adopted by the Small Tea Growers (STGs) on their annual green tea leave production. Moreover it also tries to figure out the jeopardised effect of the technology package used in tea cultivation on environment and health.

scholarly journals Changes of phenolic compounds of tea leaves during Oolong tea process

2014 ◽  
Vol 17 (1) ◽  
pp. 67-75
Author(s):  
Tram Ngoc Nguyen ◽  
Oanh Ngoc Huynh ◽  
Hien Phuoc Phan
Keyword(s):  
Phenolic Compounds ◽  
Green Tea ◽  
The Other ◽  
Tea Leaves ◽  
Total Polyphenols ◽  
Oolong Tea ◽  
Other Hand ◽  
Green Tea Leaves

It was believed that provided photographs of changes of total polyphenols (TPP), tannin, theaflavins (TF), thearubigins (TR) contents and total colour liquids. Green tea leaves were going through the stages: fresh tea → withering → incubated 1 → aromatic spin 1 → incubated 2 → aromatic spin 2 →fried inactivated enzymes. Tea samples in the stages were provided by Cau Tre tea factory. Tea samples were divided into two groups: the activated and inactivated enzyme groups – microwave was applied to treated the activated enzyme one. Tea samples after the inactivation were conducted. The results showed that TPP and tannin contents generally decreased. Changes of theaflavin contents were contrast to tannin contents. On the other hand, theaflavin and thearubigin are the major polyphenols that determine on the quality of Oolong tea.

scholarly journals Nitrogen Fertilization in Soil Affects Physiological Characteristics and Quality of Green Tea Leaves

HortScience ◽  
2018 ◽  
Vol 53 (5) ◽  
pp. 715-722 ◽  
Author(s):  
Fang Xiao ◽  
Zaiqiang Yang ◽  
Haijing Huang ◽  
Fei Yang ◽  
Liyun Zhu ◽  
...  
Keyword(s):  
Green Tea ◽  
N Fertilization ◽  
Shoot Biomass ◽  
Tea Leaves ◽  
Total N ◽  
Spad Value ◽  
Green Tea Leaves ◽  
Fertilization Level ◽  
Growth Quality

To study the effects of soil nitrogen (N) fertilization on tea growth, quality and yield, a controlled experiment with green tea [Camellia sinensis (L.) O. Ktze] was conducted. Five N fertilization treatments in soil were designed: 0, 0.97, 1.94, 3.88, and 5.82 g/kg/pot, which were subsequently recorded as N0, N1, N2, N3, and N4. The changes to young shoot biomass, total N and carbon (C), Soil and Plant Analyzer Development (SPAD) value, photosynthetic parameters, senescent characteristics, endogenous hormones, and the quality of green tea leaves were investigated. The results showed that with the increase in N fertilization level, the young shoot biomass, total N and C, SPAD value, net photosynthetic rate (PN), transpiration rate (Tr), stomatal conductance (gS), superoxide dismutase activity, indoleacetic acid, gibberellin, zeatin (ZT), caffeine, and amino acids increased at first and then decreased, the maximums appeared at 3.88 g/kg/pot; whereas the intercellular CO2 concentration (Ci), malondialdehvde contents, abscisic acid (ABA), polyphenol contents, and the ratio of polyphenols (PP) to free amino acid decreased at first and then increased, the minimums appeared at 3.88 g/kg/pot. The immediately significant change in all parameters appeared after 1 month of N treatments. The experiment showed that 3.88 g/kg/pot N fertilization level was the best for growth, quality, and yield of tea, which could provide a theoretical basis for short-term N fertilization management in tea tree.

Influence of mineral elements on the yield and quality of grain of the prospective line in winter tritikale

2020 ◽  
Author(s):  
I.N. Voronchikhina ◽  
◽  
A.G. Marenkova ◽  
V. S. Rubets ◽  
V. V. Pylnev
Keyword(s):  
Cost Effective ◽  
Mineral Elements ◽  
Early Spring ◽  
High Potential ◽  
Winter Triticale ◽  
Yield And Quality ◽  
Fertilizer System

The results of elements development of varietal agrotechnics of a new high-potential line 238h of winter triticale presented. It was identified that under the conditions of 2020 the most cost effective fertilizer system is an early spring application of NPK (S) (15-15-15 (10)) at a dose of 200kg/ha. The profitability level of this fertilizer was 88,9%.

Effects of Soil Selenium Supplementation Level on Selenium Contents of Green Tea Leaves and Milk Vetch

2007 ◽  
Vol 12 (1) ◽  
pp. 35-39 ◽  
Author(s):  
Dae-Jin Kim ◽  
Dae-Soo Chung ◽  
Sung-Chul C. Bai ◽  
Hyeong-Soo Kim ◽  
Yu-Bang Lee
Keyword(s):  
Green Tea ◽  
Selenium Supplementation ◽  
Tea Leaves ◽  
Green Tea Leaves

The potential role of tea in periodontal therapy: An updated review

2020 ◽  
Vol 17 ◽  
Author(s):  
Ali Forouzanfar ◽  
Hamideh Sadat Mohammadipour ◽  
Fatemeh Forouzanfar
Keyword(s):  
Green Tea ◽  
Potential Role ◽  
Wide Spectrum ◽  
Periodontal Diseases ◽  
Herbal Remedies ◽  
World Population ◽  
Tea Leaves ◽  
The World ◽  
Green Tea Leaves

: Periodontal diseases are highly prevalent and can affect high percentage of the world population. Oxidative stress and inflammation plays an important role in the pathogenesis of periodontal diseases. Nowadays, more attention has been focused on the herbal remedies in the field of drug discovery. Green tea is an important source of polyphenol antioxidants, it has long been used as a beverage worldwide. The most interesting polyphenol components of green tea leaves that are related with health benefits are the catechins. Taken together this review suggested that green tea with its wide spectrum of activities could be a healthy alternative for controlling the damaging reactions seen in periodontal diseases.

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