scholarly journals Efficiency of exogenous zinc sulfate application reduced fruit drop and improved antioxidant activity of ‘Kinnow’ mandarin fruit

2023 ◽  
Vol 83 ◽  
Author(s):  
M. Liaquat ◽  
I. Ali ◽  
S. Ahmad ◽  
A. M. Malik ◽  
H. M. Q. Ashraf ◽  
...  
Keyword(s):  
Fruit Quality ◽  
Zinc Sulfate ◽  
Foliar Application ◽  
Foliar Spray ◽  
Soluble Solids ◽  
Total Phenolic ◽  
Total Production ◽  
Fruit Drop ◽  
Kinnow Mandarin

Abstract ‘ Kinnow’ mandarin (Citrus nobilis L.× Citrus deliciosa T.) is an important marketable fruit of the world. It is mainstay of citrus industry in Pakistan, having great export potential. But out of total production of the country only 10% of the produce meets the international quality standard for export. Pre-harvest fruit drop and poor fruit quality could be associated with various issues including the plant nutrition. Most of the farmers do not pay attention to the supply of micro nutrients which are already deficient in the soil. Furthermore, their mobility within plants is also a question. Zinc (Zn) is amongst those micronutrients which affect the quality and postharvest life of the fruit and its deficiency in Pakistani soils is already reported by many researchers. Therefore, this study was carried out to evaluate the influence of pre-harvest applications of zinc sulfate (ZnSO4; 0, 0.4%, 0.6% or 0.8%) on pre-harvest fruit drop, yield and fruit quality of ‘Kinnow’ mandarin at harvest. The treatments were applied during the month of October i.e. 4 months prior to harvest. The applied Zn sprays had significant effect on yield and quality of the “Kinnow” fruit. Amongst different foliar applications of ZnSO4applied four months before harvest, 0.6% ZnSO4 significantly reduced pre-harvest fruit drop (10.08%) as compared to untreated control trees (46.45%). Similarly, the maximum number of fruits harvested per tree (627), fruit weight (192.9 g), juice percentage (42.2%), total soluble solids (9.5 °Brix), ascorbic acid content (35.5 mg 100 g-1) and sugar contents (17.4) were also found significantly higher with 0.6% ZnSO4 treatment as compared to rest of treatments and control. Foliar application of 0.6% ZnSO4 also significantly improved total antioxidants (TAO) and total phenolic contents (TPC) in fruit. In conclusion, foliar spray of ZnSO4 (0.6%) four months prior to harvest reduced pre-harvest fruit drop, increase yield with improved quality of ‘Kinnow’ mandarin fruit.

scholarly journals Influence of Foliar Sprays of Nutrients on Yield and Yield Accrediting Characters of Kinnow Mandarin: A Review

2020 ◽  
Author(s):  
Reetika . ◽  
G. S. Rana ◽  
Komal . ◽  
Sanjay Kumar ◽  
Poonam Saini
Keyword(s):  
Environmental Sustainability ◽  
Nutrient Management ◽  
Foliar Application ◽  
Foliar Spray ◽  
Fruit Yield ◽  
Foliar Sprays ◽  
Fruit Drop ◽  
Macro And Micronutrients ◽  
Kinnow Mandarin

Plant nutrients both macro and micro plays a major productive and qualitative role in bringing stability and sustainability in the production system particularly in fruits crops like citrus and therefore, effective nutrient management is critical. The aim of our paper is to study the influence of foliar sprays of nutrients on yield and yield attributing characters such as fruit drop, final fruit retention, number of fruits per plant and fruit yield of Kinnow mandarin as appropriate rate, time and method of application of fertilizers in Kinnow are considered to be the major indices in deciding the desired level of productivity and quality of fruits. Therefore, many studies around the world, evaluating the yield and yield attributing characters of Kinnow mandarin with respect to foliar application of nutrients were studied and their results showed that the foliar application were economically viable and beneficial for both Kinnow productivity and environmental sustainability. Hence, for obtaining better fruit yield and minimizing fruit drop with aim to achieve desired level of productivity and improved fruit quality, foliar spray of macro and micronutrients could be used effectively.

scholarly journals The Exogenous Application of Micro-Nutrient Elements and Amino Acids Improved the Yield, Nutritional Status and Quality of Mango in Arid Regions

Plants ◽  
2021 ◽  
Vol 10 (10) ◽  
pp. 2057
Author(s):  
Ahmed M. S. Kheir ◽  
Zheli Ding ◽  
Mohamed S. Gawish ◽  
Hanan M. Abou El Ghit ◽  
Taghred A. Hashim ◽  
...  
Keyword(s):  
Amino Acids ◽  
Fruit Quality ◽  
Arid Regions ◽  
Foliar Application ◽  
Chemical Constituents ◽  
Foliar Spray ◽  
Soluble Solids ◽  
Strong Positive Correlation ◽  
Yield And Quality

The mango is one of the most valuable and appealing tropical fruits due to its color, aroma, tasteful remarkable flavor, and nutritive value; however, improving the yield and quality of mango is an urgent goal in order to combat global population growth. The application of amino acids and a micronutrient mixture might improve the yield and quality features but further research is still required in arid regions. To study the combined effect of a micronutrient mixture (MM) and amino acids (AA) at different rates, twenty-seven Fagri Kalan mango trees (15 years old) were carefully selected. The foliar application effect of MM and AA on vegetative growth, total chlorophyll, leaf chemical constituents, productivity, and the fruit quality of mango trees (cv. Fagri Kalan) was investigated. The findings revealed that the investigated growth measurements and leaf chemical contents, as well as the fruiting aspects and the fruit quality improved significantly due to the application of MM and AA. A higher application rate of the micronutrient mixture (2 g L−1) in combination with the highest amino acid concentration (2 mg L−1) was the most effective combination that increased the yield, total soluble solids (TSS), total sugars (TS), and total carbohydrates by 28.0%, 3.0%, 5.8% and 15.0%, respectively, relative to untreated plants. The relationship between such characteristics revealed a strong positive correlation (0.80–0.95), confirming the importance of these materials in increasing the yield and quality of mangoes. Thus, using doses of MM and AA as a foliar spray four times during each growing season is recommended under similar environmental conditions and horticulture practices used in the current experiment.

scholarly journals FOLIAR APPLICATIONS OF ZINC, IRON AND MANGANESE INFLUENCE THE PLANT GROWTH AND FRUIT QUALITY OF PAPAYA CV. RED LADY

2020 ◽  
Vol 8 (5) ◽  
pp. 551-557
Author(s):  
Gurjot Singh Pelia ◽  
◽  
A K Baswal ◽  
Keyword(s):  
Plant Growth ◽  
Fruit Quality ◽  
Foliar Application ◽  
Ascorbic Acid Content ◽  
Titratable Acidity ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Total Carotenoids ◽  
Heavy Soil

Prevalence of heavy soil is a major problem for fruit cultivation under Punjab conditions consequently leading to deficiency of several micro-nutrients including zinc (Zn), iron (Fe), and manganese (Mn) which adversely affects the growth and productivity. In this view, a study was planned to investigate the effect of foliar applications of zinc sulphate (ZnSO4), iron sulphate (FeSO4), and manganese sulphate (MnSO4) on vegetative growth, reproductive growth and fruit quality of papaya cv. Red lady. Plants sprayed with ZnSO4 (0.4 %) exhibited significantly highest plant height, plant girth, number of leaves, petiole length; initiated an earliest flowering and fruiting; and improved fruit quality viz., fruit weight, fruit length, titratable acidity, soluble solids concentrations, ascorbic acid content, total phenols content, and total carotenoids content as compared with the control and all other treatments. In conclusion, foliar application ZnSO4 (0.4 %) significantly improved plant growth and fruit quality in papaya cv. Red lady.

scholarly journals Fruit Abscission and Fruit Quality of Apples Following Use of Dicamba to Control Preharvest Drop

1990 ◽  
Vol 115 (3) ◽  
pp. 390-394 ◽  
Author(s):  
Richard P. Marini ◽  
Ross E. Byers ◽  
Donald L. Sowers ◽  
Rodney W. Young
Keyword(s):  
Fruit Quality ◽  
Starch Content ◽  
Soluble Solids ◽  
Naphthaleneacetic Acid ◽  
Soluble Solids Content ◽  
Fruit Abscission ◽  
Fruit Drop ◽  
Solids Content ◽  
Methoxybenzoic Acid

Five apple (Malus domestica Borkh.) cultivars were treated with dicamba at concentrations of 0 to 200 mg·liter-1 during 3 years. Although the response varied with cultivar, dose, and year, dicamba always delayed fruit abscission. At similar concentrations, dicamba usually reduced fruit drop more than NAA, but less than fenoprop. Dicamba at 10 mg·liter-1 effectively delayed drop of `Delicious', whereas 20 to 30 mg·liter-1 was required for `Red Yorking', `Rome', `Winesap', and `Stayman'. Dicamba did not influence flesh firmness, soluble solids content, water core, or starch content at harvest or after storage. Chemical names used: naphthaleneacetic acid (NAA); 2-(2,4,5-trichlorophenoxy)propionic acid (fenoprop); 3,6dichloro-2-methoxybenzoic acid (dicamba).

Foliar application of moringa leaf extract, potassium and zinc influence yield and fruit quality of ‘Kinnow’ mandarin

2016 ◽  
Vol 210 ◽  
pp. 227-235 ◽  
Author(s):  
Maryam Nasir ◽  
Ahmad Sattar Khan ◽  
S.M. Ahmad Basra ◽  
Aman Ullah Malik
Keyword(s):  
Fruit Quality ◽  
Leaf Extract ◽  
Foliar Application ◽  
Kinnow Mandarin ◽  
Moringa Leaf Extract

scholarly journals EFFECT OF FOLIAR SPRAY OF CALCIUM CARBONATE AND ZINC SULPHATE ON FRUIT QUALITY OF KINNOW MANDARIN

2020 ◽  
Vol 8 (1) ◽  
pp. 5-9
Author(s):  
Laila Zaman ◽  
Waqar Shafqat ◽  
Naseem Sharief ◽  
Kashif Raza ◽  
Safeer ud Din ◽  
...  
Keyword(s):  
Calcium Carbonate ◽  
Fruit Quality ◽  
Zinc Sulphate ◽  
Foliar Spray ◽  
Kinnow Mandarin

Salt-Induced Damage Alleviation in Tanacetum Balsamita L. by Foliar Application of Dobogen Biofertilizer, Glucose and KNO3

2021 ◽  
Author(s):  
Mohammad Bagher Hassanpouraghdam ◽  
Lamia Vojodi Mehrabani ◽  
Mehdi Kheiri ◽  
Antonios Chrysargyris ◽  
Nikolaos Tzortzakis
Keyword(s):  
Phenolic Content ◽  
Foliar Application ◽  
Physiological Responses ◽  
Foliar Spray ◽  
Soluble Solids ◽  
Total Phenolic ◽  
Chlorophyll B ◽  
Si Content ◽  
Independent Effects ◽  
Phenolic And Flavonoid

Abstract The effects of NaCl salinity stress and foliar application of KNO3, glucose and Dobogen were tested on Tanacetum balsamita. The results showed the significant interaction effects of salinity and foliar sprays on chlorophyll a, K+, Na+, Mg2+, Fe2+, Zn2+, Mn2+ and Si content, K/Na ratio and total phenolic and flavonoid contents. The highest phenolic content was acquired with 100 mM salinity and foliar spray of Dobogen and glucose, 50 mM NaCl × KNO3 application and 50 mM salinity× nonfoliar application. The highest K/Na ratio was observed in control plants and controls × KNO3 and/or Dobogen application. The greatest Si content was recorded with controls × Dobogen and KNO3 applications and no saline × no foliar control plants. Malondialdehyde, flavonoid and proline contents as well as catalase activity were influenced by the independent effects of treatments. Chlorophyll b and superoxide dismutase were affected by salinity. Total soluble solids and Ca2+ were influenced by foliar applications. Malondialdehyde and proline were the highest at 150 mM salinity. Salinity adversely affected the physiological responses of costmary. However, foliar treatments partially ameliorated the salinity effect, and the results would be advisable to the extension section and pioneer farmers.

scholarly journals Easily Extractable Glomalin-Related Soil Protein as Foliar Spray Improves Nutritional Qualities of Late Ripening Sweet Oranges

Horticulturae ◽  
2021 ◽  
Vol 7 (8) ◽  
pp. 228
Author(s):  
Lu-Lu Meng ◽  
Sheng-Min Liang ◽  
Anoop Kumar Srivastava ◽  
Yan Li ◽  
Chun-Yan Liu ◽  
...  
Keyword(s):  
Fruit Quality ◽  
Mycorrhizal Fungi ◽  
Foliar Application ◽  
Sweet Orange ◽  
Foliar Spray ◽  
Fruit Weight ◽  
Soluble Solid Content ◽  
Hyphal Length ◽  
Soil Protein

The role of arbuscular mycorrhizal fungi in sweet oranges is well known, but the function of their secondary metabolite, especially the easily extractable glomalin-related soil protein (EE-GRSP), an active fraction of glomalin, is still unclear. The proposed study aimed to analyze the field response of foliar application of exogenous EE-GRSP on tree mycorrhizal development and fruit quality of two sweet orange (Citrus sinensis L. Osbeck) varieties viz., Lane Late Navel (LLN) and Rohde Red Valencia (RRV). Application of EE-GRSP significantly increased the root mycorrhizal colonization and soil mycorrhizal hyphal length in both the sweet orange varieties. The external quality of fruits (fruit weight, polar diameter, and equatorial diameter) also improved in response to foliar application of EE-GRSP in both sweet orange varieties. However, EE-GRSP treatment showed no change in fruit soluble solid content, while it increased the Vc content, solids-acid ratio, fructose, glucose, and sucrose content of sarcocarp in the two sweet oranges varieties. The LLN variety treated with EE-GRSP recorded significantly higher N, P, K, Fe, and Si content of sarcocarp as a mark of nutritional quality, while the RRV variety treated with EE-GRSP displayed a higher concentration of nutrients like Cu, Fe, Si, and Zn in the sarcocarp as compared with the corresponding non-treated control. To the best of our knowledge, this is the first report regarding the improvement in fruit quality of late-ripening sweet oranges (especially LLN) in response to foliar application of EE-GRSP as another potential biostimulant.

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