scholarly journals Effect of Different Types of Pruning Operations on Yield and Quality of Tea

2021 ◽  
pp. 44-51
Author(s):  
Md. Imran Hossen ◽  
Toufiq Ahmed ◽  
Riyadh Arefin
Keyword(s):  
Dry Matter ◽  
Black Tea ◽  
The Other ◽  
Dry Matter Content ◽  
Yield And Quality ◽  
Tea Quality ◽  
Different Types ◽  
Effect On Yield ◽  
Positive Effect

Aims: Pruning is the cutting of branches of a tea bush at predetermined height and at a specified interval in order to reinvigorate and bring tea bushes within reach of the pluckers, which directly related to the productivity and quality of tea. In Bangladesh, Three and four year pruning cycles were the conventional recommendations for the tea plantation. In this experiment, along with BTRI recommended four types of pruning operations (LP, DSK, MSK and LSK), two more types of  pruning operations such as: UP (Unprune) and LoS (Level of Skiff) were considered as treatments. This experiment was conducted with two main objectives: to evaluate the yield and yield related parameters of tea due to different types of pruning operations as well as to find out the effect of pruning operations on organoleptic quality of black tea. Study Design, Place and Duration of Study: This experiment was conducted ‘D2 Thall’ area at the main research farm of Bangladesh Tea Research Institute (BTRI) from December 2017 to November 2019. The experimental design was Randomized Completely Block Design (RCBD) with six treatments and three replications. Methodology: The treatments are denoted as T1 (UP: Unpruned) control, T2 (LP: Light Pruning), T3 (DSK: Deep Skiffing), T4 (MSK: Medium Skiffing), T5 (LSK: Light Skiffing) and T6 (LoS: Level of Skiffing) respectively. Data were collected under the following parameters: Number of plucking point or pluckable shoot/bush in each plucking Fresh weight (g) of 100 shoots (three leaves and a bud) Oven Dry weight (g) of 100 shoots (three leaves and a bud) to calculate Dry Matter Content Green leaf weight (kg) to calculate Yield of each treatment Number of plucking round to calculate Yield gap of each treatment Black Tea Quality of each treatment by Organoleptic Tasting Method. Results: It was found that, number of plucking points/pluckable shoot and yield were found significantly high in T6 (Level of Skiffing), T5 (Light Skiffing) and T1 (Unpruned) than the other treatments. But in terms of tea quality, lowest quality tea was found in T1 (Unpruned), T6 (Level of Skiffing) and T5 (Light Skiffing) treatment. So, it can be concluded that, ‘Skiff Pruning’ or ‘Unprune’ technique had positive effect on yield but the quality of these technique were poor in comparison with other treatments. T2 (Light Pruning) treatment gave more tender and fresh shoot than the other treatment. For this reason, dry matter was low in T2 (Light Pruning) treatment but tea quality was much better than the other pruning technique. Conclusion: Pruning has  positive or  negative effect on  yield and quality of  tea.  ‘Skiff Pruning’ or ‘Unprune’ has positive effect on yield but the quality of is poor than the other treatments. Best Quality tea can be produced from Light Pruning tea section because of having more tender and fresh shoot than other treatments.

Effects of Actinidia yellowing ringspot virus on the yield and quality of kiwifruit

Plant Disease ◽  
2021 ◽  
Author(s):  
Yi Wu ◽  
Yicheng Wang ◽  
Jiaxiu Sun ◽  
Yuling Liu ◽  
SHRESTHA SUJATA ◽  
...  
Keyword(s):  
Dry Matter ◽  
Matter Content ◽  
Fruit Yield ◽  
Ringspot Virus ◽  
Shaanxi Province ◽  
Dry Matter Content ◽  
Total Acid ◽  
Yield And Quality ◽  
Acid Ratio

China is the origin and distribution center of kiwifruit, as well as the country with the largest cultivated area and output of kiwifruit. A previous study found that a new kiwifruit virus, Actinidia yellowing ringspot virus (AYRSpV), has been detected in kiwifruit samples with yellowed leaves. The incidence of this virus was high in kiwifruit plantings in Shaanxi Province. To determine the symptoms of this viral infection and the effects of this virus on the yield and quality of kiwifruits, we measured leaf chlorophyll levels and the fruit yield, total sugar, total acid and dry matter contents of ‘Hayward’ kiwifruits grafted with AYRSpV-infected scions. The results showed that after AYRSpV infection, symptoms including chlorotic ringspots were mainly observed in the spring and gradually recovered with high summer temperatures. A few of the leaves that did not recover showed symptoms of albinism, which lasted until the leaves fell. We found that AYRSpV infection could reduce the chlorophyll content of ‘Hayward’ kiwifruit by 74.61-76.64%, the fruit yield by 14.50-24.10%, the sugar to acid ratio by 50.09-50.57%, and the fruit dry matter content by 1.67-1.78%. Our results showed that AYRSpV infection could significantly affect the yield and quality of ‘Hayward’ kiwifruit.

scholarly journals DETERMINATION OF HERBAGE YIELD AND QUALITY OF DIFFERENT SOYBEAN VARIETIES

2021 ◽  
Vol 10 (20) ◽  
pp. 13-18
Author(s):  
Yasin Akinci ◽  
Mahmut Kaplan
Keyword(s):  
Crude Protein ◽  
Dry Matter ◽  
Forage Yield ◽  
Neutral Detergent Fiber ◽  
Soybean Cultivars ◽  
Dry Matter Digestibility ◽  
Yield And Quality ◽  
Herbage Yield ◽  
Effect On Yield

Objectives of the present study are to determine the variations in forage yield and quality of soybean cultivars. Experiments were conducted in randomized complete blocks design with 3 replications during the growing season of 2016. A total of 10 cultivars were used as the plant material of the experiments (Bravo, A3127, Traksoy, İlksoy, Mersoy, Nova, SA-88, Arısoy, Safir, Atakişi). Cultivars had a significant effect on yield and chemical composition. Results revealed that green herbage yields varied between 826.39 - 1199.17 kg/da, dry hay yields between 247.71 - 357.90 kg/da, crude protein yields between 16.91 - 39.86 kg/da, acid detergent fiber (ADF) ratios between 26.56 - 34.61%, neutral detergent fiber (NDF) ratios between 38.43 - 44.85%, crude ash contents between 7.20 - 11.22%, crude protein contents between 6.66 - 13.53%, dry matter digestibility (DDM) values between 61.94 - 68.21%, dry matter intake (DMI) values between 2.68 - 3.12% and relative feed values (RFV) between 2.68 - 3.12. The results of the study showed that A3127 cultivar was found to be prominent with green herbage yield (1199.17 kg/da) and dry hay yield (357.90 kg/da) and Safir cultivar was found to be prominent with crude protein yield (39.86 kg/da). It was concluded that the soybean cultivars A3127 and Safir could be recommended for hay production.

scholarly journals ẢNH HƯỞNG CỦA NỒNG ĐỘ Na2SO3 ĐẾN MỘT SỐ GIỐNG SẮN TRIỂN VỌNG TẠI THỪA THIÊN HUẾ

2020 ◽  
Vol 4 (3) ◽  
pp. 2012-2019
Author(s):  
Nguyễn Đình Thi ◽  
Thái Thị Hồng Mỹ ◽  
Lê Thị Hương Xuân
Keyword(s):  
Ethanol Production ◽  
Dry Matter ◽  
Starch Content ◽  
Growth Yield ◽  
Matter Content ◽  
Dry Matter Content ◽  
Root Yield ◽  
Yield And Quality ◽  
Cassava Varieties

Nghiên cứu ảnh hưởng của các nồng độ Na2SO3 (0, 100, 300, 500 ppm) đến 03 giống sắn KM 94, KM 21-12 và KM 444 trong năm 2019 tại vùng sinh thái gò đồi thị xã Hương Trà, tỉnh Thừa Thiên Huế nhằm mục đích xác định ảnh hưởng và nồng độ Na2SO3 phù hợp cho cây sắn. Kết quả đạt được là: 1) Phun Na2SO3 ở các nồng độ thí nghiệm đã tăng sinh trưởng thân - lá - củ, năng suất, chất lượng củ và hiệu quả kinh tế của 03 giống sắn thí nghiệm. 2) Tại nồng độ phun Na2SO3 từ 300 đến 500 ppm, so với đối chứng giống KM 94 tăng năng suất thực thu 19,5 - 20,2%, tỷ lệ sắn lát đạt 40,9 - 41,1%, hàm lượng tinh bột đạt 29,3 - 30,2% và năng suất ethanol tăng 23,6 - 26,6%; Giống KM 21-12 tăng năng suất thực thu 15,1 - 18,6%, tỷ lệ sắn lát đạt 40,5 - 41,0%, hàm lượng tinh bột đạt 29,7 - 29,8% và năng suất ethanol tăng 21,6 - 25,8%; Giống KM 444 tăng năng suất thực thu 18,4 - 19,9%, tỷ lệ sắn lát đạt 40,6 - 40,8%, hàm lượng tinh bột đạt 30,3 - 30,9% và năng suất ethanol tăng 24,9 - 25,7%. ABSTRACT The study on the effects of Na2SO3 concentrations (0, 100, 300, 500 ppm) on 03 cassava varieties (KM 94, KM 21-12 and KM444) was conducted in 2019 in hilly ecological area of Huong Tra town, Thua Thien Hue province to determine the effect and suitable concentration of Na2SO3 for cassava. The results showed that: 1) Spraying Na2SO3 at a rate of 640 liters/ha with experimental concentrations increased stem - leaf - root growth, yield and quality of roots and economic efficiency of all of 03 cassava varieties. 2) Spraying Na2SO3 at concentrations from 300 to 500 ppm, compared with the control, KM 94 increased root yield of 19.5 - 20.2%, dry matter content reached 40.9 - 41.1%, starch content reached 29.3 - 30.2% and ethanol production increased by 23.6 - 26.6%; KM 21 - 12 increased root yield of 15.1 - 18.6%, dry matter content reached 40.5 - 41.0%, starch content reached 29.7 - 29.8% and ethanol production increased by 21.6 - 25.8%; KM 444 increased root yield of 18.4 - 19.9%, dry matter content reached 40.6 - 40.8%, starch content reached 30.3 - 30.9% and ethanol production increased by 24.9 - 25.7%.  

scholarly journals Tuber yield and quality of potato chips as affected by mulch, variety, and potash levels under western Terai, Nepal

2013 ◽  
Vol 2 ◽  
pp. 121-132
Author(s):  
R Dhakal ◽  
SK Sah ◽  
SM Shakya ◽  
KB Basnet
Keyword(s):  
Dry Matter ◽  
Tuber Yield ◽  
Reducing Sugar ◽  
Potato Chips ◽  
Dry Matter Content ◽  
Dry Matter Accumulation ◽  
Net Return ◽  
Yield And Quality ◽  
Tuber Production

An experiment was conducted at Divyapuri of Nawalparasi district in the western Terai during winter season 2008/09. There were 16 treatments consisting of two mulch levels (mulched and no mulch) as main plot, two varieties (Kufri Chipsona-1 and Kufri Chipsona-2) as sub plot and four levels of potash (0, 50, 100 and 150 kg K2O /ha) as sub-sub plot arranged in split-split plot design with four replications to evaluate the effect of these treatments on tuber production and their effect on quality of potato chips. The result showed that plant height, number of shoot per plant, dry matter accumulation, number and weight of tuber per plant and tuber yield were significantly higher in Kufri Chipsona-2 than in Kufri Chipsona-1. Lower reducing sugar and browning percent of chips and higher dry matter content and chips recovery were also recorded in Kufri Chipsona-2 compared to Kufri Chipsona-1. Simple economic analysis on gross return, net return and B/C ratio were higher in Kufri Chipsona-2. However, increasing levels of potash from 0-150 kg K2O /ha increased the dry matter accumulation, LAI, number and weight of tuber per plant. The result also showed that as the level of potash increased there was a decrease level of reducing sugar and browning of chips as well. On the other hand, higher potash levels increased the percentage of fat content and recovery of chips. Also increase in potash levels resulted to increase in gross return, net return, and B/C ratio. There was no effect of mulching levels on tuber yield and quality of chips recovery. Of the two varieties, Kufri Chipsona-2 with 100 kg K2O/ha was found suitable for tuber production and recovery of chips quality. DOI: http://dx.doi.org/10.3126/ajn.v2i0.7527 Agronomy Journal of Nepal (Agron JN) Vol. 2: 2011 pp.121-132

scholarly journals Yield and Quality of Potato Varieties

2013 ◽  
Vol 14 (1) ◽  
pp. 41
Author(s):  
Josip Ćota ◽  
Azra Hadžić
Keyword(s):  
Dry Matter ◽  
Block Design ◽  
Matter Content ◽  
Dry Matter Content ◽  
Average Yield ◽  
Qualitative Properties ◽  
Potato Varieties ◽  
Yield And Quality ◽  
New Varieties

A two-year experiment (2009-2010) included four potato varieties (Desire, Romano, Bistra and Kis Sora). Experiments were conducted in Butmir (about 500 m/ asl) and Glamoč (approximately 900 m/ asl) region. The aim was to select new varieties for our area of cultivation. Productive characteristics of potato varieties (yield, weight and number of tubers per box) were examined. In the frame of qualitative properties, dry matter content and starch were examined. Trials were performed by randomised block design with four replications, and the results were analysed using the analysis of variance. Higher average yield was achieved by Romano cultivar by 8% compared to Desire and Kis Sora. Dry matter content ranged from 21.80% in Romano to 22.20% in Desiree. Examining varieties should be continued in the upcoming period in order to determine the most favourable conditions for cultivation in the area of Bosnia and Herzegovina.

scholarly journals Yield formation and quality characteristics of early potatoes during a short growing period

2008 ◽  
Vol 13 (4) ◽  
pp. 390 ◽  
Author(s):  
L. MUSTONEN
Keyword(s):  
Nitrogen Fertilization ◽  
Dry Matter ◽  
Tuber Yield ◽  
Sugar Content ◽  
Matter Content ◽  
Nitrate Content ◽  
Dry Matter Content ◽  
Nitrogen Application ◽  
Yield And Quality

The effects of nitrogen fertilization on the yield and quality of early potato (Solanum tuberosum L.) were studied at MTT Agrifood Research Finland during 1996–1997. Cultivars were harvested at three times. The experimental layout was a split-split-plot with harvest times as main plots and nitrogen fertilization and potato cultivars as the subplots. The fertilizer treatments were 60 and 120 kg N ha-1 and the cultivars tested were Timo, Gloria and Van Gogh. The harvest times were 57–62, 70–75 and 85–90 days after planting. Application of 120 kg N ha-1 intensifi ed canopy development and increased leaf area of the stands. At early harvest the tuber yield of all cultivars receiving the higher nitrogen application increased by 0.5–2.5 t ha-1. The highest yielding cultivar was Timo. At last harvest, the higher nitrogen treatment increased yield by 3.0–6.2 t ha-1. The highest yielding cultivars were Timo and Van Gogh. The dry matter content of tubers was very low, 13.8–17.2%, at the fi rst harvest and the higher nitrogen application reduced dry matter content by 0.3–1.0%. The highest fertilizer application rate resulted in the largest tuber size. Nitrogen application, however, affected the quality of potatoes by decreasing the dry matter content. The nitrate content in tubers increased signifi cantly with the increasing level of nitrogen. The range of nitrate content in tubers fl uctuated between 13 and 189 mg kg-1 fresh weight showing good controlling of nitrate values. Harvest time affected sucrose content and the reducing sugar content in tubers, but nitrogen fertilizer did not change the sugar content of tubers. As tuber yield and quality during a short growing season are affected mainly by intercepted radiation, methods to increase tuber yield should focus on reducing the time to emergence, improving haulm growth after emergence and increasing the harvest index.;

scholarly journals Evaluation of Rootstock Resistance to Fusarium Wilt and Gummy Stem Blight and Effect on Yield and Quality of a Grafted ‘Inodorus’ Melon

HortScience ◽  
2007 ◽  
Vol 42 (3) ◽  
pp. 521-525 ◽  
Author(s):  
Paola Crinò ◽  
Chiara Lo Bianco ◽  
Youssef Rouphael ◽  
Giuseppe Colla ◽  
Francesco Saccardo ◽  
...  
Keyword(s):  
Cucumis Melo ◽  
Dry Matter ◽  
Titratable Acidity ◽  
Didymella Bryoniae ◽  
Growing Seasons ◽  
Yield And Quality ◽  
Plant Remains ◽  
Soluble Solid ◽  
Effect On Yield

Grafting represents an effective tool for controlling the race 1,2 of Fusarium oxysporum f. sp. melonis (FOM) and Didymella bryoniae in melon (Cucumis melo L.). Although not considered a soilborne pathogen, D. bryoniae survives on plant remains in the soil. The lack of effective resistant commercial hybrids and the gradual reduced use of soil fumigation with methyl bromide increase the risk of damages by both these pathogens. We determined the effectiveness of eight commercial rootstocks, ‘RS 841’, ‘P 360’, ‘ES 99-13’, ‘Elsi’ (Cucurbita maxima Duchesne × Cucurbita moschata Duchesne), and ‘Belimo’, ‘Energia’, ‘Griffin’, ‘ES liscio’ (Cucumis melo genotypes), for their resistance to FOM and D. bryoniae. During 2003 and 2004 growing seasons, the inodorus F1 hybrid Incas was grafted onto each of these commercial rootstocks and then evaluated, under greenhouse conditions, in terms of productivity and fruit quality. Cucurbita rootstocks (‘RS 841’, ‘P 360’, ‘ES 99-13’, ‘Elsi’) were highly resistant both to the race 1,2 of FOM (100% survival) and to D. bryoniae (almost absent crown lesions and low leaf disease index); this reaction clearly differed from that of both the C. melo rootstocks (‘Belimo’, ‘Energia’, ‘Griffin’, ‘ES liscio’) and the control Incas. In both years, the highest yield was recorded in the graft combination Incas/‘RS 841’ with 5.6 and 8.1 kg·m−2 during 2003 and 2004, respectively. The Cucurbita rootstock ‘RS 841’ produced yields higher than C. melo rootstocks (‘Belimo’, ‘Energia’, ‘Griffin’, ‘ES liscio’) and the control Incas. Fruit dry matter, titratable acidity, total soluble solid contents, fruit firmness, and Hunter color [L* (brightness), a* (redness), and b* (yellowness) parameters] of grafted melons were similar to those of the plants grown on their own roots.

scholarly journals Absolute Quantitative Volatile Measurement from Fresh Tea Leaves and the Derived Teas Revealed Contributions of Postharvest Synthesis of Endogenous Volatiles for the Aroma Quality of Made Teas

2021 ◽  
Vol 11 (2) ◽  
pp. 613
Author(s):  
Mingjie Chen ◽  
Li Guo ◽  
Huiwen Zhou ◽  
Yaling Guo ◽  
Yi Zhang ◽  
...  
Keyword(s):  
Black Tea ◽  
Significant Loss ◽  
Tea Leaves ◽  
Gene Expressions ◽  
Flame Ionization ◽  
Tea Quality ◽  
Different Types ◽  
Aroma Characteristics ◽  
Volatile Profiles

Characteristic aroma is a well-appreciated feature contributing to tea quality. Although extensive studies have been made to investigate aroma biosynthesis and gene expressions during tea making processes, it remains unclear whether the endogenous volatile biosynthesis during postharvest tea processing contributes to the aroma quality of made tea. To critically evaluate this question, we used the same batch of fresh tea leaves and produced three different types of tea with different degrees of fermentation (green tea, oolong tea, and black tea). Total volatiles were extracted by solvent-assisted-flavor evaporation, then quantified by gas chromatography-flame ionization detector combined with response factor correction for quantitative measurement. Compared with fresh tea leaves, the volatile profiles of the made teas were dramatically altered, with significant loss for the majority of endogenous volatiles and simultaneous gain for non-endogenous volatiles. By calculation of odor-activity values, the potential volatiles contributing to the aroma characteristics of each tea type were identified. Our data suggest that postharvest synthesis of endogenous volatiles did not contribute to the aroma quality of made tea.

EFFECTS OF NITROGEN RATES AND HARVEST SCHEDULES ON YIELD AND QUALITY OF WESTERWOLDS RYEGRASS GROWN AS A SUMMER ANNUAL

1980 ◽  
Vol 60 (2) ◽  
pp. 519-524 ◽  
Author(s):  
H. T. KUNELIUS
Keyword(s):  
Dry Matter ◽  
Lolium Multiflorum ◽  
Matter Content ◽  
In Vitro Digestibility ◽  
Dry Matter Content ◽  
Total N ◽  
Yield And Quality ◽  
Nitrogen Rates

Westerwolds ryegrass (Lolium multiflorum Lam. ’Promenade’) was grown on fine sandy and light loam soils. Nitrogen was applied at 40, 80, or 120 kg/ha after emergence and after both the first and second harvests. The 1st harvest under schedules A, B and C was on 10, 15 and 22 July followed by the 2nd harvest in 28, 37 and 40 days and the 3rd harvest in 30, 50 and 37 days after the 2nd harvest, respectively. The 4th harvest for schedule A was 46 days after the 3rd harvest. Mean dry matter yields ranged from 6.26 to 9.03 t/ha, total N in tissue from 2.09 to 2.99%, in vitro digestibility of dry matter from 73.3 to 76.3%, and dry matter content from 12.1 to 14.1% depending on the N rate and/or harvest schedule. Nitrate-N concentration in plant tissue was low for 40 and 80 kg/N/ha/application but reached up to 0.45% for the 120 kg/ha/application under harvest schedule A. Yield distribution within the season was most uniform for schedule B. A 3-harvest schedule with 80 kg/ha of applied N at seeding and after the 1st and 2nd harvests was suitable management for Promenade Westerwolds ryegrass in this region.

scholarly journals Dry Matter Yield and Quality of Two Temperate and Two Tropical Forage Legume Hays Harvested at Early-Flowering in Jos, Nigeria

2019 ◽  
pp. 1-12
Author(s):  
T. T. Akpensuen ◽  
J. T. Amodu ◽  
R. J. Tanko ◽  
J. S. Luka ◽  
O. A. T. Namo ◽  
...  
Keyword(s):  
Dry Matter ◽  
Early Flowering ◽  
The Other ◽  
Dry Matter Yield ◽  
Forage Legumes ◽  
Flowering Stage ◽  
Stylosanthes Guianensis ◽  
Yield And Quality ◽  
Tropical Forage

The study was designed to evaluate the dry matter yield and quality of two temperate (T. Pratense and T. repens) and two tropical forage legumes (S. guianensis and C.molle) harvested at early-flowering stage for hay in a cool tropical environment of Vom, Jos, Plateau State, Nigeria. The legumes were planted in the month of June, 2015 and 2016 in a 4 x 4 Latin Square Design with four replicates in plots measuring 5 m x 3 m. The forages were harvested at early-flowering stage for yield components, dry matter yield and nutrient quality evaluation. The result showed that C. molle was significantly (P<0.01) higher in height in the two seasons compared to the other legumes. Number of leaves per plant was higher (P<0.01) significantly in S. guianensis (125.00) in 2015 whereas, T. repens had higher (P<0.01) value (187.25) in 2016 cropping season.  Stylosanthes guianensis produced significantly (P<0.01) higher dry matter with 10.42 t ha-1 in 2015, while the dry matter yield obtained from C. molle (2.90 t ha-1) was the highest in 2016. Trifolium pratense and T. repens were scored excellent grade, while Stylosanthes guianensis and Centrosema molle were scored good in quality. Crude protein content was significantly (P<0.01) higher in T. repens (18.38%) compared to T. pratense (16.50 %), whereas S. guianensis produced the least value of 13.83%. The crude fibre content of the of the forage materials on the other hand was significantly higher (P<0.0I) in S. guianensis (37.29 %) compared to the other forage legumes. The temperate forage legumes in this trial were higher in nutrient content, but lower in dry matter yield. Therefore, the forage crops may serve as better supplementary feeds for livestock feeding especially during the dry season.

Sign in / Sign up

Export Citation Format

Share Document