Pre-Harvest Foliar Application of Mineral Nutrients to Retard Chlorophyll Degradation and Preserve Bio-Active Compounds in Broccoli

El-Mogy, Mohamed M.; Mahmoud, Abdel Wahab M.; El-Sawy, M.; Parmar, Aditya

doi:10.3390/agronomy9110711

Cited by 20 publications

(18 citation statements)

References 46 publications

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“…Additionally, the SPAD (leaf chlorophyll) index did not show any difference between the selenium treatments and broccoli cultivars (Supplemental Figure S1). In general, SPAD meter values are proportional to the amount of chlorophyll present in plant tissue and serve as a good nondestructive indicator of chlorophyll (El‐Mogy et al., 2019). The application of selenium supplementation exhibited no significant effect on chlorophyll content in oilseed rape ( B. napus ; Ulhassan et al., 2019), or in wheat ( Triticum aestivum L.; Filek et al., 2019) under control conditions.…”

Section: Resultsmentioning

confidence: 99%

Improving the foliar biofortification of broccoli with selenium without commercial quality losses

et al. 2021

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Selenium‐biofortified broccoli (Brassica oleracea L. var. italica Plenck) is an important source of micronutrients in a healthy human diet. Therefore, studies are needed on the commercial production of selenium‐enriched broccoli. We analyzed the effect of the foliar application of sodium selenate and sodium selenite in doses of 50 and 100 g ha−1 on the growth, photosynthetic parameters, selenium accumulation, and commercial quality of broccoli in two cultivars (‘Belstar’ and ‘Legend’) used for fresh crops market grown under field conditions. The application of both doses of selenate and the highest dose of selenite induced a significant increase in the head fresh weight (FW) only in cultivar Belstar. However, the dry matter content of the heads was not significantly affected by selenium or the cultivar of broccoli. In addition, the increase in the water use efficiency, mainly due to the reduction of the transpiration rate, could explain the significant increase in the head FW without modifying the head dry matter content in Belstar. On the other hand, selenium treatments before harvest maintained the green color and did not affect the firmness and diameter of the heads at harvest. The selenium content of the heads increased markedly in a dose‐dependent manner in both cultivars, with both selenium treatments. The results of this study indicate that the response to selenium treatments differs between broccoli cultivars and that the use of both selenium salts in foliar form would be a good strategy to obtain selenium‐enriched broccoli, without affecting the commercial quality of the heads.

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Section: Resultsmentioning

confidence: 99%

Improving the foliar biofortification of broccoli with selenium without commercial quality losses

et al. 2021

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“…There was a negative correlation (r = 0.90) between weight loss and leaf calcium content. The positive effects of calcium in reducing weight loss of lettuce heads fertilised with organic sources could be due to its importance in maintaining cell wall structure and firmness (El-Mogy et al 2019d).…”

Section: Effect Of Organic Fertilisers On Weight Loss Of Head Lettucementioning

confidence: 99%

Comparative Effects of Different Organic and Inorganic Fertilisers on Soil Fertility, Plant Growth, Soil Microbial Community, and Storage Ability of Lettuce

El-Mogy

Abdelaziz²,

Mahmoud

et al. 2020

Agriculture (Pol'nohospodárstvo)

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The current study was conducted to assess whether organic fertilisation could replace mineral fertilisation in lettuce production without adverse effects on yield, quality, and postharvest behaviour. The effect of either mineral or organic fertiliser on soil fertility or the microbial community was also studied. Control plots were fertilised with recommended rates of mineral fertiliser (150: 45: 65 kg/ha NPK) and the other treatments were 15 t/ha compost, 10 t/ha rabbit manure, and 10 t/ha chicken manure. Our results indicated that all sources of organic fertiliser significantly increased total nitrogen, organic carbon, total fungi, and bacteria contents of soils compared with mineral fertiliser. Rabbit and chicken manure fertilisers resulted in a significant increase in yield. Compared with conventional fertiliser and other organic treatments, plots receiving rabbit manure showed a lower weight loss and microbial load on fresh lettuce head. Moreover, rabbit manure significantly reduced polyphenol oxidase and peroxidase activity. Hence, these results suggest that rabbit manure fertiliser could be an alternative to conventional production without significant reduction in yield and with low enzymatic browning and better storability.

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“…Various pre-harvest treatments have been used to prolong the storage period, extend the shelf-life, and maintain the quality of vegetable crops, such as supplementation using different mineral fertilizers and bio-stimulants [11][12][13], the application of oxalic acid [14], and chitosan oligosaccharide treatment [15]. To our knowledge, the influence of the preharvest application of plant growth regulators, such as SA, ABA, and MeJA, has not been previously studied, particularly on strawberry plants.…”

Section: Introductionmentioning

confidence: 99%

Pre-Harvest Application of Salicylic Acid, Abscisic Acid, and Methyl Jasmonate Conserve Bioactive Compounds of Strawberry Fruits during Refrigerated Storage

et al. 2021

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The short shelf-life and loss of bioactive compounds of strawberry fruit are the most important problems during strawberry refrigerated storage. This study was carried out to evaluate the effect of the pre-harvest foliar application of salicylic acid (SA) (2 and 4 mM), abscisic acid (ABA) (0.25 and 0.50 mM), and methyl jasmonate (MeJA) (0.25 and 0.50 mM) three times, 10 d apart, at fruit development and ripening stages on storage ability and bioactive compounds of strawberry fruit (cv. Festival) stored at 4 °C for 12 d. Our results showed that fruit obtained from both concentrations of ABA and 0.25 mM MeJA was firmer and had higher total soluble solids (TSS) than fruit from non-treated plants. However, all previous applications had no significant effect on weight loss, pH, or color. Applications of 4 mM SA and 0.25 mM MeJA conserved fruit from ascorbic acid (AsA) loss compared to control at the end of the storage period. In addition, all pre-harvest applications remained higher in total phenolic compounds (TPC) and anthocyanin contents compared to controls at the last storage period. Hence, the pre-harvest application of SA, ABA, and MeJA could be used to conserve TPC and anthocyanin as well as the quality of strawberry fruits during refrigerated storage.

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Pre-Harvest Foliar Application of Mineral Nutrients to Retard Chlorophyll Degradation and Preserve Bio-Active Compounds in Broccoli

Cited by 20 publications

References 46 publications

Improving the foliar biofortification of broccoli with selenium without commercial quality losses

Improving the foliar biofortification of broccoli with selenium without commercial quality losses

Comparative Effects of Different Organic and Inorganic Fertilisers on Soil Fertility, Plant Growth, Soil Microbial Community, and Storage Ability of Lettuce

Pre-Harvest Application of Salicylic Acid, Abscisic Acid, and Methyl Jasmonate Conserve Bioactive Compounds of Strawberry Fruits during Refrigerated Storage

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