scholarly journals Effect of Foliar Application of CaCl2 on Lettuce Growth and Calcium Concentrations with Organic and Conventional Fertilization

HortScience ◽  
2018 ◽  
Vol 53 (6) ◽  
pp. 891-894
Author(s):  
Weiling Yuan ◽  
Shangyong Yuan ◽  
Zhixiong Liu ◽  
Leifu Chen ◽  
Zhengming Qiu
Keyword(s):  
Calcium Concentration ◽  
Foliar Application ◽  
Organic Fertilizer ◽  
Calcium Content ◽  
Absorption Spectrometry ◽  
Well Being ◽  
Calcium Deficiency ◽  
Leaf Phenotype ◽  
High Calcium ◽  
Significant Difference

Calcium-rich vegetables in diet could minimize calcium deficiency and maximize good health and well-being. The aim of the present study was to determine the effect of different levels of foliar application of CaCl2 on lettuce (Lactuca sativa L.) growth and calcium concentrations with the application of organic and conventional fertilizers. Pot experiments were conducted with three calcium levels (60, 120, and 180 mg·L−1 of CaCl2) of an organic fertilizer (3N–0.8P–3.5K) and commercial conventional fertilizer (15N–15P–15K). Calcium in whole oven-ashed samples of shoots was analyzed by atomic absorption spectrometry. Nine lettuce cultivars including butterhead, romaine, and loose-leaf phenotype were tested. These results revealed that the calcium concentration in lettuce significantly increased as calcium levels increased from 60 to 180 mg·L−1. Elevated calcium concentrations in organic and conventional fertilizers increased the concentration of calcium in lettuce from 1.82% at 60 mg·L−1 to a mean of 2.15% at 120 and 180 mg·L−1. The concentration of calcium in the loose-leaf phenotype was 2.17%, 2.47%, and 3.80% higher than that in the butterhead and romaine phenotypes at 60, 120, and 180 mg Ca/L, respectively. Furthermore, the significant difference in calcium concentration among cultivars ranged from 1.27% to 3.05%. ‘Perilla Green’, ‘Breen lettuce’, and ‘Salinas’ had the highest calcium concentrations followed by ‘Jericho lettuce’, ‘Salad Bowl’ and ‘Crisp’, and ‘Kaiser’, whereas ‘Valmaine’ and ‘Rosa Green’ had the lowest calcium concentrations. The present study revealed that selecting fertilizers and cultivars with high calcium concentration can increase the total calcium content of lettuce.

scholarly journals Growth of tomato plantlets in soilless culture, enriched with egg shell waste and algae

2021 ◽  
Vol 3 (2) ◽  
pp. 161-167
Author(s):  
Handan Ertürk
Keyword(s):  
Calcium Content ◽  
Plant Production ◽  
Soilless Culture ◽  
Mineral Contents ◽  
Soil Nutrition ◽  
High Calcium ◽  
Significant Difference ◽  
Shell Waste ◽  
Egg Shell ◽  
Eggshell Waste

In this research, it was aimed to use the Chlorella Vulgaris algae, and eggshell waste (ESW) as different mineral sources for tomato plant nutrition in soilless culture. Algae is seen as safe, sustainable energy source. Egg shell waste is known to be valuable for high calcium content and minerals therefore, has been considered as mineral enrichment source. Although there are several papers on the soil nutrition, there is not as much information on eggshell waste and algae use for plant production in soilless culture. In the controlled atmosphere of the laboratory, a set-up was constructed for pumping the liquid medium (hydroponics) circulating in the tubes holding the tomato plantlets. The liquid nutrient solutions used for soilless culture treatments were media enriched with algae, enriched with ESW and blank (hydroponic only). Research was conducted for 3 months, the final weight of harvested tomatoes and mineral uptake of the plant (stalk and tomato) for different treatments were measured. Algae added medium gave higher results in tomato weight, than ESW added and blank treatments. Results showed that algae and ESW addition led to increased Ca content in harvested tomato, as well as minerals such as B, K, Mg, and Zn. The results were as expected in terms of increase in mineral contents, but the statistics showed no significant difference between treatments.

scholarly journals PENGARUH SUBSTITUSI TEPUNG IKAN LELE TERHADAP PEMBUATAN COOKIES BEBAS GLUTEN DAN KASEIN SEBAGAI ALTERNATIF JAJANAN ANAK AUTISM SPECTRUM DISORDER [Effect of Catfish Flour Substitution towards Gluten-Free and Casein-Free Cookies as an Alternative Snack for Children with Autism Spectrum Disorder]

2019 ◽  
Vol 14 (1) ◽  
pp. 35
Author(s):  
Aliffah Nurria Nastiti ◽  
Juliana Christyaningsih
Keyword(s):  
Autism Spectrum Disorder ◽  
Nutritional Value ◽  
Calcium Content ◽  
Children With Autism ◽  
Autism Spectrum ◽  
Spectrum Disorder ◽  
Gluten Free ◽  
Randomized Design ◽  
High Calcium ◽  
Significant Difference

Children with Autism Spectrum Disorder (ASD) have digestive disorders, therefore their diet should be gluten-free and casein-free. Gluten-free and casein-free foods tend to be low in protein. ASD children who apply a gluten-free diet and casein have a lower calcium intake and low in bone density. Catfish flour with high protein and calcium content were expected to increase the nutritional value (protein and calcium) of cookies which gluten-free and casein-free. This study was aimed to determine the effect of catfish flour substitution towards acceptance and nutritional value of gluten and casein free cookies as an alternative snack for ASD children. This study was experimental research with Completely Randomized Design. Panelists of this study were children with ASD (4-6 years) and their parents as many as 40 people. There were 4 formulas in this study, F0 was control, and 3 substitution formulas. Percentage of Flour substitution were, F2 (2%: 2%); F3 (4%: 4%); and F5 (6%: 4%). Kruskal Wallis test showed no significant difference in the level on acceptance level in taste and aroma between F0, F3, and F5. The acceptability and nutritional value's ranking showed the best formula was F5. 100 grams of F5 cookies (protein: 6.75 g; calcium: 247.51 mg) can fulfill 19% of the protein and 24.8% calcium of children RDA (4-6 years). Gluten-free and casein-free cookies with catfish (Formula 5) with enough protein and high calcium can be an alternative snack for ASD children.

scholarly journals Pengaruh Pupuk Kalsium dan Kalium terhadap Pertumbuhan dan Kualitas Hasil Sawi Hijau (Brassica rapa L.)

Vegetalika ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 107
Author(s):  
Monica Intan Aryandhita ◽  
Dody Kastono
Keyword(s):  
Brassica Rapa ◽  
Calcium Concentration ◽  
Foliar Application ◽  
Phosphate Fertilizer ◽  
Sweet Taste ◽  
Calcium Deficiency ◽  
Growth And Yield ◽  
Two Factors ◽  
Consumption Index ◽  
Calcium Fertilization

Mustard (Brassica rapa L.) is one of vegetable that cultivated and consumed by people in Indonesia regions. Using calcium fertilizer in mustard cultivation is less important, so that it is done when symptoms of calcium deficiency affect the quality of crop yield such as tip burn. Calcium fertilization could overcome calcium deficiency, but plant will undergo potassium deficiency as side effect. Foliar application of calsium fertilizer was used to avoid negative interaction between calcium and phosphate in the soil so that good quality yield and growth could be produced. A research was conducted on August-October 2019 at Kebun Percobaan Tri Dharma, Agriculture Faculty, Gadjah Mada University, Banguntapan, Bantul, Yogyakarta. The research used RCBD with two factors which were the concentration of calcium fertilizer (0, 2, 4, and 6 g/l) and the second factor was the dosage of KCl fertilizer (0, 100, 200, and 300 kg/ha). Concentration showed amount of calcium fertilizer mixed in a liter of water and dosage showed amount of fertilizer applied per plant. Result of the research showed that interaction between calcium concentration and phosphate dosage did not increase mustard growth and yield but had potensial in increasing texture and taste of mustard by applying 4 and 6 g/l calcium concentration with 100 kg/ha phosphate dosage, while 2 and 4 g/l calcium concentration with 200 kg/ha dosage could increasing sweet taste in mustard. Calcium fertilizer concentration increased mustard consumption index. The more amount of phosphate fertilizer dosage applied (> 300 kg/ha) could decrease mustard fresh weight

scholarly journals Selected Water Physico-Chemical Characteristics of Iloilo Batiano River, Philippines: A Baseline Study

2021 ◽  
Vol 12 (9) ◽  
pp. 261-266
Author(s):  
Bartimeues Nathan Wiederhold ◽  
◽  
Tom Lichtenberg ◽  
Roderick R. Germo ◽  
Brian Gil S. Sarinas
Keyword(s):  
Aquatic Organisms ◽  
Calcium Content ◽  
The Philippines ◽  
Initial Assessment ◽  
Chemical Characteristics ◽  
Ph Values ◽  
Physico Chemical ◽  
High Calcium ◽  
Significant Difference ◽  
The Republic

Protecting our natural resources is one of the important thrusts of every organization. In this study, the waters of Iloilo Batiano River, Philippines is explored. This study was conducted because there is a dearth of information on the water physico-chemical characteristics of the river. Since this is an initial assessment, this study will serve as a baseline data and the results will serve as a basis for future reference for conservation measures of the river. The present study aimed to determine the selected water physico-chemical characteristics of the river such as the electrical conductivity (EC), temperature, pH, and calcium content; assess if these parameters exceed the limit set by the DENR Administrative Order No. 20F16-08 of the Republic of the Philippines and other available literatures; and to determine if there was no significant difference in the water physico-chemical characteristics among the six sampling stations. Results revealed that EC and calcium content of the river exceed their limits except for temperature and pH levels. Furthermore, EC and temperature were statistically different among the six sampling stations except for pH values. This study concludes that the river is saline due to the mixing of saltwater and surface water as the river is near to the sea and has high calcium content that can threaten the life of freshwater aquatic organisms.

Metabolic effects of ouabain in the perfused rat heart

1964 ◽  
Vol 207 (2) ◽  
pp. 347-351 ◽  
Author(s):  
Robert A. Kreisberg ◽  
John R. Williamson
Keyword(s):  
Calcium Concentration ◽  
Specific Activity ◽  
Calcium Content ◽  
Metabolic Effects ◽  
Rat Hearts ◽  
High Calcium ◽  
High Calcium Concentration ◽  
Free Glucose ◽  
Steady State Levels ◽  
Perfusion Period

Ouabain increased the uptake and oxidation of glucose-U-C14 by perfused guinea pig and rat hearts by 50%. Cardiac glycogen content remained constant and no change in glycogen specific activity was observed. The metabolic changes produced by ouabain were dependent on the calcium concentration of the perfusate. Reduction of the calcium content of the perfusate by 50% abolished the increase in C14O2 production by ouabain. The C14O2 production of hearts perfused with buffer containing twice the physiological calcium concentration was similar to that of hearts perfused with buffer containing the normal calcium concentration and ouabain. The effect of the high calcium concentration combined with ouabain was not different from that produced by either one alone. Steady-state levels of glycolytic intermediates after a 30-min perfusion period were elevated in the absence of glycogenolysis and free glucose did not accumulate intracellularly. In so far as the changes in glucose metabolism are concerned the findings are consistent with the concept that the effects of glycosides on cardiac muscle are dependent on changes in calcium transport or concentration at the site of the contractile elements.

scholarly journals Calcium sources applied to soil can replace leaf application in ‘Fuji’ apple tree1

2015 ◽  
Vol 45 (3) ◽  
pp. 266-273 ◽  
Author(s):  
Moeses Andrigo Danner ◽  
Silvia Scariotto ◽  
Idemir Citadin ◽  
Gener Augusto Penso ◽  
Luís César Cassol
Keyword(s):  
Calcium Chloride ◽  
Foliar Application ◽  
Calcium Content ◽  
Production Costs ◽  
Water Restriction ◽  
Apple Trees ◽  
Foliar Sprays ◽  
High Calcium ◽  
Fuji Apple ◽  
Low Efficiency

ABSTRACTCalcium increases postharvest conservation of apples. Consequently, several calcium foliar sprays are generally applied to apple trees. Due to the low mobility of calcium in the phloem, foliar sprays may have low efficiency to supply calcium in the fruits. This study aimed to evaluate the efficiency of different sources of calcium applied to the soil, compared to the foliar application, on the content of calcium in the soil, leaves and fruits, on yield and fruit quality of ‘Fuji’ apple trees. The following treatments were tested: control, soil application of calcium chloride, gypsum, Nitrabor®, hydrated lime and pulp sludge, and foliar application of calcium chloride. For all sources in the soil, 80 kg of calcium ha-1 year-1 were applied. For the foliar treatment, ten sprays with 0.4 % of calcium chloride were performed. The experiment was conducted in two seasons (2008/2009 and 2009/2010), in a complete randomized blocks design, with four replicates and two apple trees per plot. Even in a soil with high calcium content, the sources of calcium increase the calcium content in the soil and leaves, as well as the firmness of apples stored for 90 days. The use of gypsum and pulp sludge increase the calcium content in the flesh of ‘Fuji’ apples after two successive applications (2009/2010). The sources of calcium applied to the soil can replace the leaf application commonly used in apple orchards, in order to reduce production costs, provided there is no water restriction in the orchard.

scholarly journals CaSR-Mediated hBMSCs Activity Modulation: Additional Coupling Mechanism in Bone Remodeling Compartment

2020 ◽  
Vol 22 (1) ◽  
pp. 325
Author(s):  
Hyunji Cho ◽  
Jisoo Lee ◽  
Seoyoung Jang ◽  
Jungsun Lee ◽  
Tong In Oh ◽  
...  
Keyword(s):  
Bone Remodeling ◽  
Calcium Concentration ◽  
Apoptotic Cell ◽  
Extracellular Calcium ◽  
Coupling Mechanism ◽  
Differentiation Potential ◽  
High Calcium ◽  
Significant Difference ◽  
High Calcium Concentration

Near the bone remodeling compartments (BRC), extracellular calcium concentration (Ca2+o) is locally elevated and bone marrow stromal cells (BMSCs) close to the BRC can be exposed to high calcium concentration. The calcium-sensing receptor (CaSR) is known to play a key role in maintaining extracellular calcium homeostasis by sensing fluctuations in the levels of extracellular calcium (Ca2+o). When human BMSCs (hBMSCs) were exposed to various calcium concentrations (1.8, 3, 5, 10, 30 mM), moderate-high extracellular calcium concentrations (3–5 mM) stimulated proliferation, while a high calcium concentration (30 mM) inhibited the proliferation. Exposure to various calcium concentrations did not induce significant differences in the apoptotic cell fraction. Evaluation of multi-lineage differentiation potential showed no significant difference among various calcium concentration groups, except for the high calcium concentration (30 mM) treated group, which resulted in increased calcification after in vitro osteogenic differentiation. Treatment of NPS2143, a CaSR inhibitor, abolished the stimulatory effect on hBMSCs proliferation and migration indicating that CaSR is involved. These results suggest that the calcium concentration gradient near the BRC may play an important role in bone remodeling by acting as an osteoblast–osteoclast coupling mechanism through CaSR.

scholarly journals Quality and Sensory Evaluation of Ice-Cream Fortified with Calcium

2020 ◽  
Vol 1 (2) ◽  
pp. 131-135
Author(s):  
G. Rajarajan ◽  
R. Annal Villi ◽  
B. Mohan ◽  
A. Irshad
Keyword(s):  
Sensory Evaluation ◽  
Ice Cream ◽  
Absorption Spectrometry ◽  
Calcium Deficiency ◽  
Texture Profile ◽  
Dairy Foods ◽  
High Calcium ◽  
Calcium Source ◽  
Recovery Percentage ◽  
Hedonic Scale

Abstract: Milk is an essential dietary calcium source, with estimates from 40% up to 74% of calcium coming from dairy foods. People who avoid dairy foods usually had an inadequate nutritional intake, unless they had an adequate intake of other high calcium dietary foods. A study was conducted to enrich calcium in ice cream to counteract the deficiency. Calcium in the form of calcium citrate was supplemented at three different levels viz.500mg, 1000mg and 1500mg in one litre of ice cream mix. The enriched ice cream samples were subjected to sensory evaluation for its acceptance, using the 9-point hedonic scale. Further, the sensory attributes of calcium-enriched ice cream were analyzed with the texture profile analyzer’s help. The recovery percentage of calcium in the enriched ice cream was carried out by Atomic absorption spectrometry. The study concluded that calcium could be enriched in ice cream mix at a 500 mg per litre level since it had better acceptability and thereby counteract the calcium deficiency. Keywords: Ice Cream -Calcium- Enrichment- Sensory evaluation- Texture analysis- Stability

Measuring Impact of Stress in Sandwich Generation Caring for Demented Parents

GeroPsych ◽  
2014 ◽  
Vol 27 (4) ◽  
pp. 171-179 ◽  
Author(s):  
Laurence M. Solberg ◽  
Lauren B. Solberg ◽  
Emily N. Peterson
Keyword(s):  
Factor Analysis ◽  
Exploratory Factor Analysis ◽  
Social Worker ◽  
Resource Availability ◽  
Well Being ◽  
Sandwich Generation ◽  
Item Questionnaire ◽  
Significant Difference ◽  
Adult Caregivers ◽  
The Impact

Stress in caregivers may affect the healthcare recipients receive. We examined the impact of stress experienced by 45 adult caregivers of their elderly demented parents. The participants completed a 32-item questionnaire about the impact of experienced stress. The questionnaire also asked about interventions that might help to reduce the impact of stress. After exploratory factor analysis, we reduced the 32-item questionnaire to 13 items. Results indicated that caregivers experienced stress, anxiety, and sadness. Also, emotional, but not financial or professional, well-being was significantly impacted. There was no significant difference between the impact of caregiver stress on members from the sandwich generation and those from the nonsandwich generation. Meeting with a social worker for resource availability was identified most frequently as a potentially helpful intervention for coping with the impact of stress.

Finnish refugee children’s experiences of Swedish refugee camps during the Second World War

2015 ◽  
Vol 12 (1) ◽  
pp. 28-37
Author(s):  
Merja Paksuniemi
Keyword(s):  
Well Being ◽  
Second World War ◽  
Refugee Children ◽  
Refugee Camps ◽  
World War ◽  
Daily Routines ◽  
Decisive Importance ◽  
Significant Difference ◽  
Camp Life ◽  
Second World

This article seeks to demonstrate how Finnish refugee children experienced living in Swedish refugee camps during the Second World War (1939–1945). The study focuses on children’s opinions and experiences reflected through adulthood. The data were collected through retrospective interviews with six adults who experienced wartime as children in Finland and were evacuated to Sweden as refugees. Five of the interviewees were female and one of them was male. The study shows, it was of decisive importance to the refugee children’s well-being to have reliable adults around them during the evacuation and at the camps. The findings demonstrate that careful planning made a significant difference to the children´s adaptations to refugee camp life. The daily routines at the camp, such as regular meals, play time and camp school, reflected life at home and helped the children to continue their lives, even under challenging circumstances.

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