Effect of Foliar Application with Potassium Nitrate and Copper Sulfate on Fruit Yield and Quality of Pear (
            <i>Pyrus communis</i>
            L.) Trees

Sajid, Muhammad; Haq, Saeed Ul; Jan, Abdullah; Noor, Fahad; Alam, Mehboob; Shoaib, Qazi; Shah, Fawad Ali; Zaman, Akhtar; Mosa, Walid F. A.; Abada, Hesham S.

doi:10.1080/15538362.2022.2117263

Cited by 8 publications

(9 citation statements)

References 24 publications

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“…Potassium regulates the opening and closing of stomata in leaves, which increases the water absorption capacity of the plants, and as a result, fruit firmness increases. Potassium application speeds up the osmoregulation of cell vacuoles and maintains balance, producing hard fruits that are in nice agreement with Sajid et al (2022) [29]. Hamza et al (2012) [30] also observed that the treatment of 8% KNO 3 (sprayed thrice) gave the best percentage of extra size class (57-63 mm) in citrus Clementine var.…”

Section: Fruit Physical Characteristicssupporting

confidence: 74%

“…The improvement in TSS content with the foliar application of potassium might be due to the fact that potassium enhances the translocation of sugars from leaves to fruits. Potassium foliar applications have an important role in nutrient translocation from source to sink, which results in better-quality produce having a maximum quantity of TSS [29].…”

Section: Fruit Chemical Characteristicsmentioning

confidence: 99%

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Potassium Spraying Preharvest and Nanocoating Postharvest Improve the Quality and Extend the Storage Period for Acid Lime (Citrus aurantifolia Swingle) Fruits

Beheiry,

Hasanin,

Abdelkhalek

et al. 2023

Plants

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Citrus fruits are one of the most abundant crops globally in more than 140 countries throughout the world. Acid lime (Citrus aurantifolia swingle) is one of the citrus fruits which popularly has rich nutritional and therapeutic features. The storage period is the important factor that affects the economic and quality properties of this fruit. This study aims to demonstrate the enhancing effect of preharvest spraying with potassium, in addition to the postharvest dipping of fruits in some edible coatings, on the quality and storability of acid lime fruits. Preharvest spraying with organic and mineral forms of potassium, namely, potassium thiosulfate 1.75 g/L (S) and potassium tartrate 2 g/L (T), were carried out at three different times, in May, June, and July. On the other hand, postharvest treatments were carried out via dipping fruits in different types of biopolymers (carboxymethyl cellulose (E2) and gum arabic (E3)) and carboxymethyl cellulose/gum arabic composite (E4) as well as nanocoating formulation based on both biopolymers and doped zinc oxide nanoparticles (ZnONPs) (E1), which were prepared via acid lime peel waste extract. Herein, the physiochemical and morphological characterizations confirmed that the nanocoating was prepared at the nanoscale and doped with green synthesis ZnONPs, with recorded sizes of around 80 and 20 nm, respectively. Preharvest spraying with potassium tartrate enhanced fruit traits (Spraying with potassium tartrate at pre-harvest and nanocoating dipping at post-harvest (TE1), spraying with potassium tartrate at pre-harvest and carboxy methyl cellulose dipping at post-harvest (TE2), spraying with potassium tartrate at pre-harvest and gum arabic dipping at post-harvest (TE3) and spraying with potassium tartrate at pre-harvest and carboxymethyl cellulose/gum arabic composite dipping at post-harvest (TE4)), followed by potassium thiosulfate (spraying with potassium thiosulfate at pre-harvest and nanocoating dipping at post-harvest (SE1), spraying with potassium thiosulfate at pre-harvest and carboxy methyl cellulose dipping at post-harvest (SE2), spraying with potassium thiosulfate at pre-harvest and gum arabic dipping at post-harvest (SE3) and spraying with potassium thiosulfate at pre-harvest and carboxymethyl cellulose/gum arabic dipping at post-harvest (SE4)), compared to control. For postharvest treatments, E1 improved fruit quality, followed by E2, E4, and E3, respectively. The integration between pre- and postharvest treatments showed a clear superiority of TE2, followed by TE4, SE1, and SE2, respectively.

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Section: Fruit Physical Characteristicssupporting

confidence: 74%

Section: Fruit Chemical Characteristicsmentioning

confidence: 99%

Potassium Spraying Preharvest and Nanocoating Postharvest Improve the Quality and Extend the Storage Period for Acid Lime (Citrus aurantifolia Swingle) Fruits

Beheiry,

Hasanin,

Abdelkhalek

et al. 2023

Plants

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“…In the some local pear cultivars, fruit skin thickness was reported 0.20 to 0.50 by Özrenk et al (2010), 0.37 -0.59 mm by Balta et al (2019). Some pomological properties of the 'Le Conte' cultivar of European pear reported as the following fruit weight 192.04 g, fruit volume 207.67 cm 3 and fruit firmness 7.53 kg.cm −2 (Sajid et al, 2022).…”

Section: Pomological Characteristicsmentioning

confidence: 97%

“…In local pear cultivars, TSS was determined between 7.60-19.25 % (Orman and Yarılgac, 2016;Polat and Az, 2017;Akın and Bostan, 2018;Balta et al, 2019;Kalkısım et al, 2021). In pear fruit, titratable acidity was reported between 0.13 -1.51% (Orman and Yarılgac, 2016;Polat and Az, 2017;Balta et al, 2019;Kalkısım et al, 2021;Ozturk, 2021;Sajid et al, 2022). pH was reported 4.28 by Erturk et al (2009)…”

Section: Fruit Chemical Characteristicsmentioning

confidence: 99%

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Quality Performance of Some Local Pear Cultivars on BA29 Rootstock under High Density Planting

Öztürk

Faizi

2022

Uluslararası Tarım Ve Yaban Hayatı Bilimleri Dergisi

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The study aimed to assess the fruit quality characteristics of some local pears grafted on BA29 quince clone rootstock in 2021 and 2022. Pomological, chemical and sensory analyzes were carried out to evaluate fruit quality characteristics. All examined pomological properties were found to be statistically significant. The fruit weight (195.47 g), fruit width (73.56 mm), fruit height (73.72 mm), fruit stalk thickness (3.94 mm) and fruit volume (193.30 ml) of the ‘Karpuz’ pear were higher than the other cultivars. The highest fruit length (90.96 mm) and fruit stalk length (40.22 mm) in the ‘Eşek’ pear; the highest flesh firmness (9.35 kg cm-2) was determined in the ‘Harman’ pear. The total Soluble solid (TSS) content of the ‘Kara’ and ‘Rıza’ pears was higher (16.83% and 16.50%) than the other cultivars. In the color of the fruit skin; the highest L* value was determined in ‘Gelin’, a* value in the ‘Harman’, b* and chroma values in the ‘Karpuz’ and hue angle in the ‘Rıza’ cultivar. The highest L* value was in the ‘Harman’, a* value was in the ‘Kuşak’, b*, chroma and hue angle values were in the ‘Gelin’ pear in terms of fruit flesh color. While ‘Macar’, ‘Harman’ and ‘Eşek’ cultivars had the highest juiciness value, ‘Macar’ and ‘Kuşak’ had the lowest taste and aroma. The highest taste and aroma values were in the ‘Kadın PArmak’ pear; the best visual quality was determined in the ‘Eşek’ cultivar. The highest titratable acid content was observed from the ‘Rıza’ (0.60%). In the study, it was found that the ‘Karpuz’ had higher pomological properties. In general, ‘Karpuz’, ‘Eşek’, and ‘Gelin’ pears exhibited better quality performances in the study. According to the results of the research, ‘Karpuz’, ‘Eşek’ and ‘Gelin’ local cultivars can be recommended for more detailed evoluations. In addition, the local cultivars used in the research can be used as genetic resources.

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Revolutionizing Maize Farming with Potassium Silicate Foliar Spray and Water Management Techniques

Elmahdy

Ahmed

Bakr

et al. 2023

Silicon

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By integrating various irrigation and agriculture management techniques, it is possible to considerably improve water productivity. In order to examine the impact of irrigation scheduling (1.0 and 1.2 pan evaporation coefficient), planting method (ridge and raised bed), and potassium silicate foliar application (0 ppm and 100 ppm) on maize (Zea mays L) growth, yield, and water-related factors, a two-season field experiment was conducted in a hot-dry climate region of southern Egypt during 2017 and 2018. The results showed that the seasonal irrigation requirement and consumptive use were higher at 1.2 than the 1.0 pan evaporation coefficient, irrespective of the planting methods. Raised bed planting method saved about 19% of applied water (two seasons average) compared to the ridge planting method. Plants treated with potassium silicates attained higher yields compared to the control, irrespective of the irrigation level and planting method. Moreover, irrigation at 1.2 pan evaporation resulted in the lowest daily ETc values, i.e., 3.15, 6.0, 6.7, and 2.8 mm for plant growth stages, i.e., ini, dev, mid and late. This resulted in the lowest Kc values (0.47, 0.91, 1.16, and 0.61) at different plant growth stages (ini, dev, mid and late). Based on the study findings, it is recommended to use a deficit irrigation of 0.15% based on accumulated pan evaporation values of 1.2, coupled with raised bed planting method and the application of 100 ppm potassium silicates, for optimal maize water productivity and net return.

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Effect of Foliar Application with Potassium Nitrate and Copper Sulfate on Fruit Yield and Quality of Pear ( Pyrus communis L.) Trees

Cited by 8 publications

References 24 publications

Potassium Spraying Preharvest and Nanocoating Postharvest Improve the Quality and Extend the Storage Period for Acid Lime (Citrus aurantifolia Swingle) Fruits

Potassium Spraying Preharvest and Nanocoating Postharvest Improve the Quality and Extend the Storage Period for Acid Lime (Citrus aurantifolia Swingle) Fruits

Quality Performance of Some Local Pear Cultivars on BA29 Rootstock under High Density Planting

Revolutionizing Maize Farming with Potassium Silicate Foliar Spray and Water Management Techniques

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