THE EFFECT OF TEMPERATURE ON CHINESE CABBAGE TIPBURN AND ITS CONTROL BY CALCIUM NITRATE OR CITRIC ACID

1994 ◽  
pp. 363-370 ◽  
Author(s):  
J. Borkowski ◽  
E. Szwonek
Keyword(s):  
Citric Acid ◽  
Chinese Cabbage ◽  
Calcium Nitrate ◽  
Effect Of Temperature

scholarly journals Comparison of foliar fertilizers and growth regulators on pre-harvest drop and fruit quality of ‘Thompson Navel’ orange

2016 ◽  
Vol 1 (1) ◽  
Author(s):  
Yaser Mollapur ◽  
Seied Mehdi Miri ◽  
Ebrahim Hadavi
Keyword(s):  
Salicylic Acid ◽  
Citric Acid ◽  
Growth Regulators ◽  
Fruit Quality ◽  
Calcium Nitrate ◽  
Dichlorophenoxyacetic Acid ◽  
Navel Orange ◽  
Fruit Decay ◽  
2,4 Dichlorophenoxyacetic Acid ◽  
Old Trees

AbstractAn investigation was carried out to determine the ability of foliar fertilizers and growth regulators to prevent pre-harvest drop and enhance navel orange fruit quality. Fifteen year old trees of the Thompson Navel orange variety were sprayed with aqueous solutions of one of the following: methanol (0.13%), calcium nitrate (0.25%), zinc sulfate (1%) + urea (0.5%), fermented sugar- cane extract (2.8%), salicylic acid (1 or 3 mM), citric acid (5 mM), or 2,4-dichlorophenoxyacetic acid (2,4-D) (0.002%). Results indicated that foliar treatment with 2,4-D reduced fruit drop (2.6%) as compared to the control (15.2%). Fruit decay was delayed and flavor improved by 5 mM citric acid. Weight loss was reduced after 3mM salicylic acid applica- tion, while methanol (0.13%), salicylic acid (1 and 3 mM) and citric acid (5 mM) caused a delay in fruit coloring.

scholarly journals Effect of Temperature and pH on Phase Transformations in Citric Acid Mediated Hydrothermal Growth of Tungsten Oxide

2018 ◽  
Vol 2018 (7) ◽  
pp. 917-923 ◽  
Author(s):  
Kasper Wenderich ◽  
Johannes Noack ◽  
Anne Kärgel ◽  
Annette Trunschke ◽  
Guido Mul
Keyword(s):  
Citric Acid ◽  
Phase Transformations ◽  
Tungsten Oxide ◽  
Hydrothermal Growth ◽  
Effect Of Temperature

scholarly journals The Prevention of Tipburn on Chinese Cabbage (Brassica rapa L. var. pekinensis (Lour.) Olson) with Foliar Fertilizers and Biostimulators

2016 ◽  
Vol 24 (1) ◽  
pp. 47-56
Author(s):  
Jan Borkowski ◽  
Barbara Dyki ◽  
Michał Oskiera ◽  
Aleksandra Machlańska ◽  
Anna Felczyńska
Keyword(s):  
Brassica Rapa ◽  
Chinese Cabbage ◽  
Foliar Application ◽  
Calcium Nitrate ◽  
Weather Conditions ◽  
Potassium Oxide ◽  
Air Humidity ◽  
Physiological Disorder ◽  
Relative Air Humidity ◽  
Young Leaves

AbstractInvestigations were carried out in 2008-2010 on Chinese cabbage (Brassica rapaL. var.pekinensis(Lour.) Olson). The main problem in cultivation of this vegetable is physiological disorder – tipburn. It is connected with low level of calcium in young leaves and with water deficiency. In 2008, seeds of Chinese cabbage were sown twice, in April and July. In July, the day temperature was high (25-30 °C) and relative air humidity was low (35-50%). In these conditions, the young leaves were injured heavily. Rotting was caused by the activity of bacteriaPectobacterium carotovorumsubsp.carotovorum(Jones) Hauben et al. However, three times foliar application of 1.5% calcium nitrate or 1.5% Wapnovit significantly reduced the tipburn. Also spraying with 0.03% of Tytanit (containing ions of titanium) or with 2.5% of Biochikol 020 PC (containing chitosan) gave similar effect. In these conditions, application of 1.5% K-300 (containing potassium oxide and ammonium nitrate) exacerbated symptoms of tipburn. Application of Wapnovit or Tytanit reduced instantly rotting of heads contrary to the application of their mixture. In autumn cultivation, when the relative air humidity was 80-100%, spraying with 1.5% solution of K-300 significantly decreased injuries in comparison to control. Application of Wapnovit, K-300, Biochikol, Tytanit or the mixture of Biochikol and calcium nitrate eliminated rotting. In experiments done in the springs of 2009 and 2010, when weather conditions were less favorable for tipburn appearance, a severity of it was lower but application of K-300 increased it appearance. In these experiments, Biochikol and Wapnovit eliminated rotting of heads. The results of three years of study have shown that calcium nitrate, Wapnovit, Tytanit and Biochikol limited occurrence of tipburn and bacterial rotting of Chinese cabbage, but the weather conditions during cultivation had the greatest impact on the severity of tipburn.

scholarly journals Effect of Temperature on Rare Earth Elements Recovery from Coal Fly Ash Using Citric Acid

2020 ◽  
Vol 742 ◽  
pp. 012040
Author(s):  
Pramesti Prihutami ◽  
Wahyudi Budi Sediawan ◽  
Widi Astuti ◽  
Agus Prasetya
Keyword(s):  
Rare Earth ◽  
Fly Ash ◽  
Citric Acid ◽  
Rare Earth Elements ◽  
Coal Fly Ash ◽  
Effect Of Temperature

scholarly journals Effect of ascorbic acid and citric acid on the quality of salted Chinese cabbage during storage

2021 ◽  
Vol 30 (2) ◽  
pp. 227-234
Author(s):  
Young Bae Chung ◽  
Hyeyeon Song ◽  
Kyungae Jo ◽  
Hyung Joo Suh
Keyword(s):  
Ascorbic Acid ◽  
Citric Acid ◽  
Chinese Cabbage

Hydrothermal synthesis and characterization of carbon spheres using citric-acid-catalyzed carbonization of starch

e-Polymers ◽  
2015 ◽  
Vol 15 (3) ◽  
pp. 179-183 ◽  
Author(s):  
B.S. Supriya ◽  
P. Nagaraja ◽  
K. Byrappa
Keyword(s):  
Particle Size ◽  
Electron Microscope ◽  
Citric Acid ◽  
Scanning Electron Microscope ◽  
Effect Of Temperature ◽  
Carbon Spheres ◽  
X Ray Diffraction ◽  
Hydrolysis Temperature ◽  
Particle Size And Shape ◽  
Scanning Electron

AbstractThe synthesis of well-dispersed carbon spheres using starch as a carbon source, citric acid as a catalyst, and distilled water as a medium without involving any organic solvent at 120–150°C for 16 h under hydrothermal treatment is presented. The use of citric acid promoted starch dehydration and allowed the use of a lower hydrolysis temperature. Under similar conditions the formation of carbon spheres was not possible in the absence of citric acid. We noticed the significant effect of temperature on the particle size and shape. The particle size increased with the increase in temperature. The synthesized carbon spheres were characterized using field-emission scanning electron microscope (FE-SEM), scanning electron microscope (SEM), X-ray diffraction, Fourier-transform infrared (FTIR) and Raman spectroscopy.

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