Role of Yeast, Ethephon and Apple Vinegar in Improving Fruit Quality and Storability of Flame Seedless Grape Cultivar
text
article
2013
eng
THIS INVESTIGATION was conducted for two successive ……seasons (2011 & 2012) in a vineyard located at El-Khatatba, Menoufiya governorate; to find out the effect of yeast, ethephon and apple vinegar applications on yield, fruit quality and storability of Flame Seedless grapes. The chosen vines were ten-year-old, grown in sandy loam soil, spaced at 2 x 2.5 meters apart, irrigated with the drip irrigation, trained to bilateral cordon with spur pruning, and trellised by the double "T" shape system. The vines were pruned during the first week of January with bud load of (60 buds/vine). Ten treatments were applied as follows: untreated vines (control), application with 15 g yeast/vine, spraying with 250 ppm ethephon, spraying with 500 ppm apple vinegar, spraying with 1000 ppm apple vinegar, spraying with 1500 ppm apple vinegar, application yeast + 250 ppm ethephon, application yeast + 500 ppm apple vinegar, application yeast + 1000 ppm apple vinegar and application yeast + 1500 ppm apple vinegar.
The results showed that all yeast treatments, either alone or combined with ethephon, and the different doses of apple vinegar gave the best results in comparison with control. Application with yeast + 1500 ppm apple vinegar resulted in the best yield and its components
i.e. physical bunches properties and improved the physical and chemical characteristics of berries. It increased berry color, TSS, TSS/acid ratio while decreased acidity in comparison to the control. Moreover, the clusters during cold storage for four weeks at 0°C, RH 90-95%, showed that all treatments, except for spraying with ethephon treatments, was enhanced storability, since it reduced looses resulting either from disease infection or physiological disorders and inhibited the rate of deterioration of physical and chemical properties (weight loss (%), decay (%), shattering (%), total spoilage (%) and the firmness) of grapes during cold storage.
Egyptian Journal of Horticulture
National Information and Documentation Center (NIDOC), Academy of Scientific Research and Technology (ASRT)
1110-0206
40
v.
2
no.
2013
143
171
https://ejoh.journals.ekb.eg/article_1341_ea5d15efda3df142eb8ad13c21cda4bf.pdf
dx.doi.org/10.21608/ejoh.2013.1341
Effect of CPPU, GA, Milagrow and Pepton on Yield and Quality of "Le-Conte" Pear Trees
text
article
2013
eng
THE PRESENT study was conducted during 2011 and 2012 seasons …..on "Le-Conte" pear trees (Pyrus communis X Pyrus pyrifolia). Trees were 7-year-old, budded on Pyrus communis rootstock and grown on calcareous soil under flood irrigation system in a private orchard located at Borg El-Arab region, Alexandria Governorate. Thirty nine trees were chosen and planted at 5 x 5 m apart. Thirteen treatments were carried out in this study; CPPU, GA3, Milagrow and Pepton were sprayed at full bloom or at fruit set.
Results showed that spraying with 10 or 15 ppm CPPU at fruit set recorded the highest values of yield and its monetary value, fruit set, fruit weight, fruit size and TSS, and the lowest values of fruit firmness and acidity. While, control and spraying with Milagrow at full bloom recorded the lowest values of yield, fruit set, fruit weight, fruit size and TSS, and the highest values of fruit firmness and acidity in both seasons.
Egyptian Journal of Horticulture
National Information and Documentation Center (NIDOC), Academy of Scientific Research and Technology (ASRT)
1110-0206
40
v.
2
no.
2013
173
185
https://ejoh.journals.ekb.eg/article_1342_cbba7149f6129f8fcac61768f11b85b7.pdf
dx.doi.org/10.21608/ejoh.2013.1342
Effect of CPPU on Fruit Set, Drop, Yield and Fruit Quality of Hollywood and Santarosa Plum Cultivars
text
article
2013
eng
THE present investigation was conducted during two successive seasons of 2012 and 2013 on Hollywood and Santarosa plum Cvs. (Prunus salicina). Trees were 10 years old and grown in a private farm at desert road in Menofia Governorate. CPPU at 5 or 10 ppm were sprayed three times (after one week, two weeks and three weeks of full bloom) on both plum cultivars.
Results showed that spraying with 5 or 10 ppm CPPU after one week of full bloom recorded the highest values of fruit set, yield, fruit weight, size, length, diameter, firmness and acidity and the lowest values of fruit drop and TSS. Control recorded the lowest values of fruit set, yield, fruit weight, size, length, diameter, firmness and acidity and the highest values of fruit drop and TSS in both seasons for the two cultivars under study. So, the study recommend to spray 5 or 10 ppm of CPPU after one week of full bloom to increase fruit set, yield and to improve fruit characteristics.
Egyptian Journal of Horticulture
National Information and Documentation Center (NIDOC), Academy of Scientific Research and Technology (ASRT)
1110-0206
40
v.
2
no.
2013
187
204
https://ejoh.journals.ekb.eg/article_1343_2d4ad0cab273cc22d4d1dca70c77ec73.pdf
dx.doi.org/10.21608/ejoh.2013.1343
Irrigation Regimes for Apricot Trees under Different Rates of Soil Moisture Depletion
text
article
2013
eng
THIS EXPERIMENT was conducted at El-Kanater Horticultural Research Station, Kalubeia governorate through two successive seasons of 2010 and 2011 to study the effect of irrigation at 20, 40, 60 and 80% depletion from the available soil moisture on some water relations, some vegetative growth characteristics, yield, fruit quality and N, P, K, Fe, Zn and Mn leaf contents of twelve years old " Canino" cultivar apricot. Trees grown on clay loamy soil and planted at 5 x 5 meters apart. The results revealed that; consumptive use increased by decreasing the available soil moisture depletion (at high soil moisture). The monthly water consumptive was low after dormancy, then increased to reach the maximum during July and August and declined to minimum during October. The value of calculated crop coefficient (Kc) was 0.71.
Moreover, The value of water use efficiency (WUE) was higher with irrigation at 40% depletion of available soil moisture (1.21 and 1.33) compared with (0.98 and 0.97) obtained from irrigation at 80% depletion from available soil moisture during the two growing seasons, respectively. Vegetative growth (shoot length, shoot diameter and leaf area), fruiting parameters (fruit set percentage and yield) and fruit properties (fruit firmness, TSS and TSS/acid ratio) scored the highest significant values with irrigation at 20% and 40% depletion from the available soil moisture. While the leaf content of N, P, K, Fe and Zn significantly decreased when irrigation rate reduced.
Egyptian Journal of Horticulture
National Information and Documentation Center (NIDOC), Academy of Scientific Research and Technology (ASRT)
1110-0206
40
v.
2
no.
2013
205
225
https://ejoh.journals.ekb.eg/article_1344_02b74fb89c4c7e4085ce9c4809a19b6d.pdf
dx.doi.org/10.21608/ejoh.2013.1344
Evaluation of some Modified Flood Irrigation Methods on Growth and Fruit Quality of Valencia Orange Trees under Sandy Soil Conditions
text
article
2013
eng
FIELD experiment was applied under sandy soil conditions to modify flood irrigation methods which are already used in numerous of citrus orchards aiming to save water consumption, increase irrigation efficiency and enlarge the potential wet area. It is established in an orchard of 5-year-old Valencia orange trees (Citrus sinensis) grafted on volkameriana lemon (Citrus volkameriana) located at Al-Adlia cooperative farms, Sharkia, Egypt. The treatments were; 1- Modified Blind Blocks (MBB), 2- Surrounding Square (SS), 3- Single Line (SL), 4- Comb Method (CM), 5- Single Railway (SR), 6- Double Railway (DR) and 7- Double Drip Lines (DDL). The studied parameters were; soil moisture content, tree root density, tree root horizontal extension and vertical penetration, tree canopy volume increment percentage, spring flush cycle and number of leafy inflorescences per shoot, fruit set percentage, fruit weight, fruit TSS and juice volume, theoretical yield and finally the water use efficiency (WUE). The obtained results showed that the modified irrigation methods which increase the water distribution efficiency and the potential wet area were DR, SR, CM SS and MBB; they successfully promoted all the studied parameters except the fruit TSS. While the SL and DDL methods that have less potential wet area around tree canopy resulted in less values. The results also showed that WUE in DR increased with about 38.9% in comparison with DDL.
Finally, from the economic point of view the DR irrigation method ranked as the first among all the others followed by SS.
Egyptian Journal of Horticulture
National Information and Documentation Center (NIDOC), Academy of Scientific Research and Technology (ASRT)
1110-0206
40
v.
2
no.
2013
227
245
https://ejoh.journals.ekb.eg/article_1345_83e36312b937f6484b3de0d00d234b2d.pdf
dx.doi.org/10.21608/ejoh.2013.1345
Physiological Effects of Garlic Aqueous Extract on Cumin
text
article
2013
eng
THIS WORK was carried out in the experimental farm of Medicinal and Aromatic Plants Research Department in El Kanater El Khairia, in tow successive seasons 2010/2011 and 2011/2012. The aim of this study was to investigate the effect of soaking cumin seeds before planting and spraying the plants with garlic aqueous extract (100g/L, 200 g/L and 400g/L) alone or in combinations on growth, fruit yield and oil production.
Cumin plants were responded to soaking and spraying with garlic aqueous extract individually or in combinations. All treatments increased the vegetative growth expressed as (plant height, fresh and dry weights) and produced higher fruit yield compared with the control. This increment showed positive trend with increasing the garlic aqueous extract concentrations. Also, essential oil yield with the highest
p-mentha-1-en-7-al (major component) content increased compared with the control plants.
Egyptian Journal of Horticulture
National Information and Documentation Center (NIDOC), Academy of Scientific Research and Technology (ASRT)
1110-0206
40
v.
2
no.
2013
247
260
https://ejoh.journals.ekb.eg/article_1347_ac7d800039a9729eeabd3609bf82cce8.pdf
dx.doi.org/10.21608/ejoh.2013.1347
Effect of Different Drying Methods and Packing Material on Quality of Thyme (Thymus vulgaris L.) During Storage
text
article
2013
eng
THIS INVESTIGATION was carried out during successive seasons ……of (2010/2011) and (2011/2012) at El-Kassassin Hort. Res. Station, Ismailia Governorate, Hort. Res. Institute, A. R. C., Egypt, to evaluate the effect of drying methods; oven at 45°C, shade at 20 ± 2°C, greenhouse at 35 ± 5°C and sun at 30 ± 3°C and packing materials; carton boxes, glass jars, cotton bags and polyethylene bags during the different storage periods of 2, 4, 6, 8, 10 and 12 months on volatile oil, moisture content and herb pigments content, in the thyme (Thymus vulgaris L ) plant herb.
The highest values of volatile oil percentage was obtained from the oven drying method, while the lowest values was obtained from sun drying method. On the other side, the highest values of dry matter resulted from the shade drying, while the lowest resulted from the sun drying. Oven drying recorded the highest moisture content per 100 g fresh herb, while the lowest values recorded by shade drying in both seasons.
The G.L.C. of the volatile oil revealed that 12 compounds were identified as following Tricyclene, α-Pinene, Camphene, α–Terpinene, Limonene, 1,8-cineol, p- cymene, Camphor, Linalool, Borneol, Thymol and Carvacrol. The major componemts were Limonene and Thymol.
The oven drying combined with both glass jars or carton boxes recorded the highest values of chlorophyll (a), chlorophyll (b) and carotene content in herb, while the sun drying method combined with polyethylene bags recorded the lowest values in this respect during both seasons.
The storage period from 2 to 12 months decrease in the chlorophyll (a), chlorophyll (b) and carotene content of thyme herb in the two seasons.
Egyptian Journal of Horticulture
National Information and Documentation Center (NIDOC), Academy of Scientific Research and Technology (ASRT)
1110-0206
40
v.
2
no.
2013
261
276
https://ejoh.journals.ekb.eg/article_1348_e3856fd8669b9e80893a729aae36164e.pdf
dx.doi.org/10.21608/ejoh.2013.1348
Effect of Foliar Application of Some Nutrients on "Le-Conte" Pear Trees Grown under Calcareous Soil Conditions
text
article
2013
eng
TTHIS INVESTIGATION was carried out during two …..successive seasons (2010 and 2011) on "Le-Conte" pear trees (Pyrus communis X Pyrus pyrifolia). The trees were 8 years old, budded on Pyrus communis rootstock and grown on calcareous soil under flood irrigation system in a private orchard located at Borg El-Arab region, Alexandria governorate. Twenty-four trees planted at 5 x 5m apart were selected as uniform as possible. The experiment involved the following six treatments: Control (untreated trees), Potassium sulphate at 0.1%, Copper sulphate at 0.02%, Sequestrated zinc at 0.04%, Sequestrated iron at 0.06% and Mixed nutrients mixed by the same concentration. Each treatment was applied three times during the growing season starting immediately after fruit set and at 21 days intervals.
The results showed that all treatments gave better results compared with control. Mixed nutritions gave the highest results in this trend. This treatment resulted in the best vegetative growth parameters. Leaf K, Cu, Zn and Fe content were also improved, in addition to ensure the highest yield, improved the physical and chemical characteristics of fruits.
Egyptian Journal of Horticulture
National Information and Documentation Center (NIDOC), Academy of Scientific Research and Technology (ASRT)
1110-0206
40
v.
2
no.
2013
277
293
https://ejoh.journals.ekb.eg/article_1349_ee1119f09a9480ee107e7594d55f43b7.pdf
dx.doi.org/10.21608/ejoh.2013.1349
Improving Growth, Fruit Set, Yield, Fruit Quality and Shelf Life of “Costata” Persimmon
text
article
2013
eng
THIS investigation was conducted at Hort. Res. Station Orchard, Paramon, Dakahlia governorate during 2010 and 2011 seasons to study the effect of foliar application of Milagrow (250gm/5 l), Pepton, GA3 (single or in combinations) and Folgers on vegetative growth, leaf content of minerals and chlorophyll, fruit set, yield and fruit quality as well as shelf life of “Costata” persimmon trees (12 years old) grafted on seedling rootstock on loamy soil.
The present results showed that, all treatments improved all growth and yield parameters compared to the control. With regard to the yield and fruit quality, the most effective treatment was spraying “Costata” persimmon trees three times (at full bloom, fruit set and June fruit drop) with a combined treatment of Peptone at 1000 ppm + GA
3 at 20 ppm or Milagrow at 50000 ppm + Pepton at 1000 ppm + GA3 at 20 ppm.
Egyptian Journal of Horticulture
National Information and Documentation Center (NIDOC), Academy of Scientific Research and Technology (ASRT)
1110-0206
40
v.
2
no.
2013
295
311
https://ejoh.journals.ekb.eg/article_1350_4a7e11983b02a56fa992c309b1306b1f.pdf
dx.doi.org/10.21608/ejoh.2013.1350