eng
National Information and Documentation Center (NIDOC), Academy of Scientific Research and Technology (ASRT)
Egyptian Journal of Horticulture
1110-0206
2357-0903
2018-04-01
45
1
1
23
10.21608/ejoh.2017.2405.1037
5425
Original Article
Postharvest Applications of 1-Methylcyclopropene and Salicylic Acid for Maintaining Quality and Enhancing Antioxidant Enzyme Activity of Apricot Fruits cv. ‘Canino’ During Cold Storage
Ahmed Abd El-Khalek
ahmed5474946@yahoo.com
1
U.K. El-Abbasy,
2
M.I. Ismail
3
Horticulture Department, Faculty of Agriculture, Tanta university, Tanta , Egypt
Horticulture Department, Faculty of Agriculture, Tanta University, 31527. Egypt.
Horticulture Department, Faculty of Agriculture, Tanta University, 31527. Egypt.
A PRICOT is one of a fragile and climacteric fruit that ripens very quickly after harvest resulting in very short storage life. 1-Methylcyclopropene (1-MCP) and salicylic acid (SA) are widely used because it inhibits the action of ethylene receptors. The objective of this experiment was to evaluate the effect of pre-storage application with either 1-MCP or SA immediately after harvest on quality, storability and shelf life of apricot fruits cv. ‘Canino’ during the two seasons 2015 and 2016. Apricot fruits divided into three equal groups and exposed to 1-MCP at 0, 0.5 or 1 ppm for 24 hours at room temperature (~25). After the duration of 1-MCP treatments, the fruits divided into three equal subgroups and the apricot fruits in each subgroup were dipped into aqueous solutions of SA at 0, 0.5 or 1 mM concentration for five minutes. All treatments of ‘Canino’ apricot fruits stored at 0±1°C and 90±5% relative humidity for 28 days followed by 3 days shelf life at ~25 as a simulation marketing period. The changes in physical and chemical properties as well as the activities of antioxidant and cell wall hydrolytic enzymes of apricot fruits were determined at weekly intervals throughout the cold storage period at 0°C as well as after end of cold storage plus 3 days shelf life at ~25. All pre-storage studied treatments of ‘Canino’ apricot fruits significantly improved fruit quality characteristics than control treatment during cold storage and shelf life. Combinations treatments of 1-MCP at 0.5 or 1 ppm plus SA at 0.5 or 1 mM were superior to 1-MCP or SA alone. Canino apricots fruits treated with the combinations of exposure to 0.5 ppm of 1-MCP plus 0.5 or 1 mM SA dipping had less weight loss and decay percentage with higher marketable fruit percentage and fruit firmness. In addition, these treatments had the lowest deterioration rate in titratable acidity (TA) and ascorbic acid contents as well as slowed the increase in total soluble solids (TSS) content and TSS/TA ratio. Moreover, these treatments delayed fruit colour development, increased fruit total phenolic content and reduced the activity of pectin methylesterase (PME) enzyme as well as enhanced the activities of antioxidant enzymes of superoxide dismutase (SOD), catalase (CAT) and peroxidase (POX) as compared to the other treated and untreated (control) apricot fruits.
https://ejoh.journals.ekb.eg/article_5425_78f441e98e7666fe7656492eb44504db.pdf
Keywords: ‘Canino’ apricot
1-Methylcyclopropene
Salicylic acid
ripening
fruit quality
Pectin methylesterase
Antioxidant enzymes
eng
National Information and Documentation Center (NIDOC), Academy of Scientific Research and Technology (ASRT)
Egyptian Journal of Horticulture
1110-0206
2357-0903
2018-04-01
45
1
25
37
10.21608/ejoh.2018.2490.1041
5739
Original Article
Effect of spraying Jasmonic acid and Girdling on growth, yield and improving fruits quality of Crimson seedless grapevine
Mosaad El-kenawy
emosaad76@yahoo.com
1
Viticulture Dept., Hort. Res. Inst., Agric. Res. Center, Giza, Egypt
THIS study was carried out during two successive seasons (2016 and 2017) in a private vineyard orchard at Boktares village, Agacenter, Dakahlia Governorate, Egypt. The experiment was conducted on 5-years-old Crimson seedless grapevine cultivar. The vines were grown in a clay soil under surface irrigation system and cane trained using pergolla trellis system. The aim of work was study effects of jasmonic acid and girdling on yield andfruit quality of Crimson seedless grapevine. Jasmonic acid wasused as a foliar application at rate (10, 20, 40 ppm) at two times: after berry set and begging berry color (at veraison stage) alone or combination with girdling begging berry color at) veraison stage). The Results showed that applications of jasmonic acid + girdling were effective for improving yield per vine, cluster weight, berry weight, volume, berry length and width, redberries & pink berries (as a visual assessment) soluble solids content, totalsugar, total anthocyanin in berry skin and total phenols while decreased total acidity and greenberry. Moreover, enhanced pruning wood weight, ripening wood and total carbohydrates in canes as compared with the controlduring both seasons. In addition increment internode length, internode thickness and trunk thickness.The promising results in this respect were obtained when the vines were sprayed with jasmonic acid 40 ppm+ girdling.
https://ejoh.journals.ekb.eg/article_5739_edfb50b39c0d58a097ff3527b109eea4.pdf
Grapevines
Crimson seedless
Jasmonic acid
girdling and chemical properties
eng
National Information and Documentation Center (NIDOC), Academy of Scientific Research and Technology (ASRT)
Egyptian Journal of Horticulture
1110-0206
2357-0903
2018-04-01
45
1
39
51
10.21608/ejoh.2018.2899.1047
6749
Original Article
Effect of Mining Diatoms and GA3 foliar applications on Navel orange tree performance.
Amal El-Baowab
emygds@gmail.com
1
Pomology, Agriculture, Cairo univ. Giza, Egypt
his study was carried out during two successive seasons (2015/016 and 2016/017) on Washington Navel orange trees grown in sandy–loamy soil under flooding irrigation system with Nile water in a private orchard at Qalub district, El-Qalubia Governorate, Egypt. This experiment studied the effect of spraying trees with diatoms at 0.5, 0.75 and1.00 kg or GA3 at 25 ppm during 25 %, 75 % or twice 25 & 75% of full-bloom on inflorescences types, fruit set %, leaf pigments, leaf minerals content and tree yield efficiency as fruit number & weight and fruit quality. Results showed that spraying of diatoms (0.5kg / 600L) on Navel orange trees at 75 % of full-bloom significantly increased leaf pigments contents. Spraying diatoms once at 25% or twice 25 & 75% % of full- bloom at 1.00 kg/600L improved with significant effect : fruit set % , leaf minerals content and tree yield efficiency as fruit number & weight and fruit quality ( fruit size , fruit hardness ) and (TSS %, TA % , TSS/ acid ratio and V. C content). Also, spraying of GA3 at 25 ppm during 75% of full bloom statistically increased leaf iron, juice V. C and fruit hardness. Moreover, both diatoms and GA3 reduced fruit drop and weight of peel when compared to the control. On the other hand, diatoms or GA3 treatments had insignificant effect on leaf potassium, Chl. b, total carotenoids, zinc and number of both leafy and leafless inflorescences.
https://ejoh.journals.ekb.eg/article_6749_2e303692a0bbc3cb21a19e3038a0c476.pdf
Navel orange, Diatoms, GA3
leafy and leafless inflorescences
eng
National Information and Documentation Center (NIDOC), Academy of Scientific Research and Technology (ASRT)
Egyptian Journal of Horticulture
1110-0206
2357-0903
2018-04-30
45
1
53
64
10.21608/ejoh.2018.2913.1048
6750
Original Article
Water Schedule of Roselle (Hibiscus sabdariffa L.) under organic fertilization
Mohammed Hewidy
mohamed.hewidy@agr.asu.edu.eg
1
Maha Elsayed
mha1182000@yahoo.com
2
Engy Sultan
engysultan@yahoo.com
3
Horticulture department, Faculty of Agriculture, Ain Shams University, Cairo, Egypt
CLAC, Agriculture Research Center, Giza, Egypt
CLAC, Agriculture Research Center, Giza, Egypt
ibiscus sabdariffa L. (Roselle) isaherbal medicineplant that has severaluses, i.e. as a food or a flavouring agent in the food industry, and also in hot and cold beverages. It is a cash crop in arid and semi-arid zones. The experiment was conducted to study the effect of irrigation and compost applicationon Roselle in Rasheed, Egypt. Water supplyfrequency was divided into three different timingsin 2, 4 and 6 days intervals. In addition to mineral fertilizers, soil media were supported with compost as a soil amendment at 5, 10 and 15 t fed-1.
The positive effect of irrigation and compost application was monitored on plant height, stem diameter, number of leaves, branches and fruits, dry weight of plantand calyx. Leaf chlorophyll contents and calyx anthocyanin composition were positively increased with the increase in interval and compost application.
https://ejoh.journals.ekb.eg/article_6750_9b0501aac7c69bee8e20635b5da18335.pdf
roselle
Hibiscus Sabdariffa
Irrigation
compost
Anthocyanin
Calyx
Medicinal plant
eng
National Information and Documentation Center (NIDOC), Academy of Scientific Research and Technology (ASRT)
Egyptian Journal of Horticulture
1110-0206
2357-0903
2018-04-01
45
1
65
80
10.21608/ejoh.2018.3178.1053
6751
Original Article
Reducing weight loss and keeping Fruit quality of Wonderful pomegranate via different postharvest treatments
Emad Khedr
emadelldin@yahoo.com
1
Department of Pomology, Faculty of Agriculture, Cairo University, Egypt
IN REGARD to maintain water content, fruit quality and reducing chilling injury symptoms of ripe Wonderful pomegranate during marketing in domestic or global markets the current study was applied in two successive seasons (2016 and 2017). Different treatments were conducted as postharvest treatments and it included, film wrapping, hot water at 45°C for 4 min., 2% CaCl2, 1% chitosan, wrapping + hot water, wrapping + 2% CaCl2, wrapping +1% chitosan, hot water + 2% CaCl2, hot water + 1% chitosan, 2% CaCl2 + 1% chitosan, combined treatment in addition to control. All treatments were stored at 5°C and 90-95% RH for 60 days followed by shelf life at 20°C for 14 days. CaCl2 at 2% significantly maintained fruit weight, peel thickness and fruit firmness. Also, 1% chitosan alone or + 2% CaCl2 showed the lowest significant decay percentages. Furthermore, 1% chitosan exhibited the lowest significant respiration rate, h° score and TSS value, it showed the highest significant general appearance scores, and maintained the higher contents of ascorbic acid and anthocyanin pigment compared with untreated ones
https://ejoh.journals.ekb.eg/article_6751_1d26cc192093b717759e91f3fb3e686e.pdf
Film wrapping
hot water
CaCl2
Chitosan
pomegranate
water content
eng
National Information and Documentation Center (NIDOC), Academy of Scientific Research and Technology (ASRT)
Egyptian Journal of Horticulture
1110-0206
2357-0903
2018-04-30
45
1
81
91
10.21608/ejoh.2018.3192.1055
7256
Original Article
Comparing Response of Melon (Cucumis melo) to Foliar Spray of Some Different Growth Stimulants under Two Nitrogen Fertilizer Forms
Abdelhakeem Shams
abdelhakeem.shams@fagr.bu.edu.eg
1
Horticulture Dept., Faculty of Agriculture, Moshtohor, Benha Univ.,Qalubia, Benha, Egypt
field experiment was conducted on melon (Cucumis melo var. reticulatus Naud, cv. Rodin hybrid) grown in a sandy loam soil during the two successive seasons of 2015 and 2016 in a private farm at EL-Sadat City, Minofia Governorate, Egypt to assess the response to foliar spray with four treatments i.e., distilled water (DW), yeast extract (YE), Lithovit® (micronized calcium carbonate) (LV) and Delfan® (amino acids) (DF), and two treatments of nitrogen application i.e., N1: 50% of the recommended N as mineral-N + 50% of the recommended N as organic manure (compost), and N2: 100% of the recommended rate as mineral-N. The recommended rate of N is 170 kg N ha-1. Lithovit gave the highest increase in plant length, leaf area, weight of shoots per plant, total chlorophyll, fruit diameter, fruit weight, fresh yield, nutrient uptake, total sugar, and total soluble solids. For some plant traits (fruit diameter, fruit weight, fresh yield, nutrient uptake, total sugar and total soluble solids) YE gave the second highest increase. N1 treatment was superior to N2 in nearly all traits. Spraying with both LV or YE gave the highest fresh yield and the best fruit quality. The highest values were obtained when LV was sprayed either with 50% mineral-N + 50% organic-N or 100% mineral-N, or when YE was sprayed with 50% mineral-N + 50% organic-N. These increases for the above mentioned treatments reached 28.78, 27.27 and 26.30% as an average in both seasons for total yield, as compared with plants supplied with 170 kg mineral-N and sprayed with the distilled water (control).
https://ejoh.journals.ekb.eg/article_7256_5af7bab2ba0f7b3a46c5b2ce30c3a7d3.pdf
yeast extract
Calcite carbonate
Amino acids
organic manure
compost
nutrient uptake
eng
National Information and Documentation Center (NIDOC), Academy of Scientific Research and Technology (ASRT)
Egyptian Journal of Horticulture
1110-0206
2357-0903
2018-04-30
45
1
93
103
10.21608/ejoh.2018.3313.1057
7257
Original Article
Improving productivity, quality and antioxidant capacity of Le-Conte pear fruits using foliar tryptophan, arginine and salicylic applications
Emad Khedr
emadelldin@yahoo.com
1
Department of Pomology, Faculty of Agriculture, Cairo University, Egypt
n respect to enhancing productivity and fruit quality of Le-Conte pear, a field study was carried out during two successive seasons (2015 and 2016). The solutions of amino acids treatments including arginine (100 and 200 ppm) and tryptophan (50 and 100 ppm), in addition to salicylic acid (100 and 200 ppm) and control (water only) were sprayed on mature trees untill run off twice, first at full bloom stage and second at initial fruit set stage (after 21 days of full bloom phase). The productivity and different fruit quality parameters were assessed, as well as, measurements of total phenols, total amino acids and antioxidant capacity during fruit development stages. Applying tryptophan, arginine and salicylic acid treatments attained a valuable effect on productivity and fruit quality of pear cv. Le-Conte. Moreover, tryptophan at 100 ppm showed the highest fruit set percentage, yield, fruit weight, L/D ratio, specific gravity, lightness of flesh colour, fruit peel colour, TSS and improved total sugars, total phenols and total amino acids content of pear fruits cv. Le-Conte, whereas salicylic acid at 200 ppm showed the lowest significant fruit abscission percentages, and maintained the highest significant values of antioxidant capacity, ascorbic acid and firmness of Le-Conte pear fruits.
https://ejoh.journals.ekb.eg/article_7257_dcbed598ef8785985c56e1c2dea658d8.pdf
Pear
Arginine
tryptophan
Salicylic acid
Amino acids
antioxidant capacity
eng
National Information and Documentation Center (NIDOC), Academy of Scientific Research and Technology (ASRT)
Egyptian Journal of Horticulture
1110-0206
2357-0903
2018-04-01
45
1
105
119
10.21608/ejoh.2018.3495.1061
7258
Original Article
Promising Impacts of Humic Acid and Some Organic Fertilizers on Yield, Fruit Quality and Leaf Mineral Content of Wonderful Pomegranate (Punica granatum L.) Trees
Noha Mansour
nosy_2010@yahoo.com
1
Horticulture. Faculty of Agriculture,Ain Shams Univ.
HE AIMS of this research were to minimizing mineral nitrogen fertilizers and evaluate the efficiency of some organic fertilizers individually or combined with humic acid on yield, fruit quality and leaf mineral content of “Wonderful” pomegranate trees. This research was carried out through three successive seasons (2015, 2016 and 2017) in Hegazi private orchard located at 57 kilometer from Cairo on the desert road to Alexandria, Egypt on eight years old pomegranate trees “Wonderful” cv. The experiment consists of two levels of humic acid (0 and 50 g/tree/season) and five nitrogen fertilizers form [chicken manure, compost, cattle manure, mineral nitrogen as experiment control 40 kg actual N/fed and mineral nitrogen as orchard control 80kg actual N/fed] .The experiment was designed in factorial experiment in a randomized complete block design. All organic nitrogen sources applied at a rate of 40kg actual N/fed. It could be concluded that, humic acid addition affected lack significant on yield, fruit physical and chemical properties and leaf nutrient content.Generally chicken manure and compost gave the highest values of most characters followed closely by two mineral treatments. When compared between two mineral N treatments the data revealed that 40kg N/fed /year was sufficient to give the highest values of most studied parameters and was equaled by 80kg N/fed /year. Regarding the combination between humic acid and nitrogen fertilizers the data showed that chicken manure and compost without addition of humic acid gave the highest values of yield and fruit characters followed closely by two mineral treatments Thus it could be safely recommended by fertilizing with (40kg N/fed /year) instead of (80kg N/fed /year) on the other hand, fertilizing by chicken manure or compost (40 g N/tree/year) with or without humic addition (50 g /tree/year) improved yield ,fruit physical & chemical properties and reduce environmental pollution.
https://ejoh.journals.ekb.eg/article_7258_8cf2ad0a210e87063d206fd9b9c19ccf.pdf
chicken manure
compost
cattle manure
fruit quality
Leaf mineral content
Mineral nitrogen
Wonderful pomegranate trees
yield
eng
National Information and Documentation Center (NIDOC), Academy of Scientific Research and Technology (ASRT)
Egyptian Journal of Horticulture
1110-0206
2357-0903
2018-04-01
45
1
121
143
10.21608/ejoh.2018.3564.1063
7259
Original Article
Effect of Foliar Spray with IAA and GA3 on Production and Protein Synthesis of Two Summer Squash Hybrid Cultivars
Dalia Nassef
daliatantawey@yahoo.com
1
Hamdy El-aref
hmelaref@yahoo.com
2
Department of vegetable crops faculty of Agriculture Assiut university Assiut Egypt
Department of Genetics,Faculty of Agriculture,Assiut University,Assiut,Egypt
A field experiment was carried out during 2015 and 2016 summer seasons at the Experimental Farm of the Vegetable Department and the Molecular Laboratory of Genetics Department, Faculty of Agriculture, Assiut University, Assiut, Egypt to study the effect of foliar spray by indoleacetic acid (IAA) and gibberellic acid (GA3) on the production and protein synthesis of two F1 summer squash hybrids (Rosina F1 and Eskandrani F1). The indoleacetic acid concentrations were 0,2.5,5 or 10 ppm and the gibberellicacid concentrations were 0,2.5,5 or 10 ppm. The results showed that IAA and GA3 had a significant influence on the most studied traits in favor of 2.5 ppm IAA and 2.5 ppm GA3. Furthermore, the obtained data indicated superiority of Rosina F1 hybrid over Eskandani F1 hybrid for all studied traits except sex ratio. Moreover, the different second order interactions had an inconsistent significant effect on the most studied traits. Rosina F1 summer squash plants which were sprayed with 10 ppm IAA without GA3 gave the highest mean values for total fruit yield/feddan. Spraying squash plants with GA3 induced the synthesis of 8 new protein bands, while 10 new proteins were induced by IAA. The two F1 hybrids of squash exhibited different protein patterns in response to thetreatments combinations of GA3 and IAA. Eskandrani F1 was highly sensitive to GA3 and IAA treatments than Rosina F1 which showed a reduction of several protein bands and low number of induced proteins.
https://ejoh.journals.ekb.eg/article_7259_dce1b04659a8f4265af4d9d602dda6f4.pdf
Cucurbita pepo
Indoleacetic acid
gibberellic acid
Protein pattern
eng
National Information and Documentation Center (NIDOC), Academy of Scientific Research and Technology (ASRT)
Egyptian Journal of Horticulture
1110-0206
2357-0903
2018-04-01
45
1
145
167
10.21608/ejoh.2018.3137.1052
7566
Original Article
Effect of Different Mulching Colors and Tunnel Coverings on Plant Growth, Yield and Post-harvest Quality of Green Bean
Noha Abd El-Rahman
dr.nohagaber@yahoo.com
1
Central laboratory fr agricultural climte
This investigation was conducted during the two successive seasons of 2015 and 2016 on green bean cv. Paulista to study the effect of different mulching colors and tunneling on the vegetative growth, yield, productivity, pod quality as well as storability and quality attributes during storage at 5 ºC, plus two days at shelf life temperature (10 ºC), to simulate the market display. The obtained results showed that transparent and black mulching gave the highest number of leaves, plant height, pod diameter, pod length, pod weight, and NPK contents in the leaves. The result also indicated that using tunnel under unheated greenhouse led to increases in the vegetative growth and productivity. Results also indicated that black mulching with non-perforated film gave the lowest weight loss of green bean pods followed by transparent mulching with non-perforated film during the storage periods. Black mulching with non-polypropylene film maintained quality attributes (TSS, ascorbic acid and total chlorophyll contents) and extended the storage life for 15 days at 5 ºC plus two days at the shelf life with a good visual quality. Tunnels and transparent treatments in the greenhouse (540 m2) gave the highest return amount (5006.7 L.E.) and the highest rate of return on invested pound in season (75 % of pound). This led to increases in the efficiency of production unit and the income of farm and thus raising farm livelihood.
https://ejoh.journals.ekb.eg/article_7566_1c12ab910bd6f75e0a9d0edbadc351c6.pdf
Phaseolus vulgaris
packaging
Polypropylene film
productivity
Visual quality
ascorbic acid
Chlorophyll
Tunnel
economic efficiency
eng
National Information and Documentation Center (NIDOC), Academy of Scientific Research and Technology (ASRT)
Egyptian Journal of Horticulture
1110-0206
2357-0903
2018-04-01
45
1
169
183
10.21608/ejoh.2018.3860.1067
7567
Original Article
Amending Sandy Soil with Biochar or/and Superabsorbent Polymer Mitigates the Adverse Effects of Drought Stress on Green Pea
Sabry Youssef
sabrysoliman@hotmail.com
1
Gamal Riad
gamal_sr@yahoo.com
2
Nashwa Abu El-Azm
nashwa-abuelazm@hotmail.com
3
Enas Ahmed
iibrahim73@hotmail.com
4
Horticulture Department, Agriculture Faculty, Ain Shams University
Vegetable Research Department, National Research Center, Tahrir St., Dokki, Cairo, Egypt.
Department of Horticulture, Faculty of Agriculture, Ain Shams University, Egypt.
Chemical Engineering and Pilot Plant Department, National Research Centre, El-Buhouth St., Dokki, 12622 Cairo, Egypt.
Faced with the scarceness of water resources and climate changes, drought is undoubtedly one of the most important abiotic stresses limiting the growth and productivity of plants including green pea, especially in the arid and semi-arid areas. The uses of soil amendments like biochar and superabsorbent polymer, which characterized by enhancing water holding capacity and improving soil physical properties, become more important in these areas. A lysimeter experiment with sandy soilin a completely randomized design was carried out in three replicates to study the effect of biochar or/and superabsorbent polymer on the growth and productivity of green pea (Pisum sativum L.) cv. Master B under full irrigation (100% of water requirement) and water deficit regime (75% of water requirement) conditions during 2015/2016 and 2016/2017seasons at the Experimental Research Farm of the Horticulture Department, Faculty of Agriculture, Ain Shams University, Qalyubia Governorate, Egypt. Results revealed that lowering irrigation level to 75% of water requirements led to significant decreases in vegetative growth parameters, SPAD readings, leaf relative water content, leaf nutrients (N, P, and K) and pod yield components compared with the full irrigation. Adding biochar or/and superabsorbent polymer significantly increased the aforementioned characters under both full irrigation and water deficit conditions. Application of biochar with superabsorbent polymer was the most efficient treatment to alleviate the deleterious effects of water deficit on green pea cultivation in sandy soils. In conclusion, applying biochar (1% w/w) with superabsorbent polymer (0.7% w/w) might be a promising novel approach to improve sandy soils characteristics and help green pea cultivation in these soils which are characterized by a low water holding capacity and low fertility.
https://ejoh.journals.ekb.eg/article_7567_75fc37e72142cf898c141435e0bd580e.pdf
Pisum sativum
Soil amendments
Hydrogel
Water deficit
Leaf relative water content
Water holding capacity