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Register a new userEffect of some chemical treatments on fruit quality of Washington navel orange trees and fruit’s ability to storage
تأثير بعض المواد الكيميائية في نوعية ثمار البرتقال أبو سرة و مدى تحملها لشروط التخزين
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نفذ البحث خلال عامي 2011-2010 على أشجار البرتقال أبو سرة بعمر (15) سنة صنف Washington navel مطعمة على أصل الزفير (النارنج) في قرية الهنادي بمحافظة اللاذقية برشها بمادة نترات البوتاسيوم و اليوريا و كلوريد الكالسيوم بهدف تحديد معاملات ما قبل القطاف و بعده المناسبة للحصول على أكبر إنتاج و أفضل نوعية للثمار.
This research was conducted during 2010-2011 growing seasons on 15 years old trees of “Washington Navel” variety grafted on Citrus aurantium (sour orange) stock and planted in the village of “Al-hinnady” in Lattakia. To determine the appropriate preharvest and post-harvest treatments to get the most production and better quality of fruits.
References used
AHMED AMEN, K.I. Physiological studies on yield and fruit quality of Balady mandarin stored on the trees.Assiut J.of Agri.Sci.,18(4),1992, 127-138
ALI, A.G. and LOVATT, C.J. Winter application of low biuret urea to the foliage of ‘Washington’ navel orange increased yield. J. Amer. Soc. Hort. Sci. 119, 1994, 1144- 1150
ALVA, A.K., PARAMASIVAM, S.; OBREZA, T.A. and A.W. SCHUMANN. Nitrogen best management practice for citrus trees I. Fruit yield, quality, and leaf nutritional status. Scientia Hort., 107, 2006, 233-244
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نفذ البحث خلال الفترة 2013-2016 م في كلية الزراعة بجامعة دمشق , بهدف دراسة تأثير المعاملة ببعض المواد الكيميائية والطبيعية ( 1- ميثيل سكلو بروبان , ونتروبروسيد الصوديوم , الشيتوزان , وأمينوفينل علايسين , والميثيل جاسمونات , وفيتامين E ) في القدرة الت
خزينية لثمار البندورة ( الهجين Tala ) وصفاتها البيوكيميائية ( نسبة المواد الصلبة الذائبة TSS ونسبة الحموضة القاتلة للمعايرة TA ) والفيزيائية ( الصلابة ونسبة الفقد بالوزن والفقد المطلق ومؤشرات اللون ) ومعايير الأكسدة ومضادات الأكسدة .
هدف هذا البحث إل دراسة تاثير بعض معاملات ما بعد القطاف في القدرة التخزينية وجودة ثمار البرتقال صنف فالنسيا في ظروف التخزين المبرد.
The study was conducted at the Horticulture Department, Faculty of
Agriculture, University of Damascus, during the season of 2002 and 2003, in
order to study the effect of dipping apple fruits for the tow apple sorts for 5
minutes with some chemic
al substances, α-Tocopherol (0.25%) and
Prohexadion-Calcium (1%).
The fruits were stored at AlMaze cold storage unit under the normal
storage condition (0-1ºC, 93% R.H.), to find out some effects of these
treatments on some physical, chemical, and physiological changes of treated
and untreated apple fruits, especially: fruit weight, firmness, starch, and
soluble solids content.
Analysis of variance indicated a significant difference in storage ability of
both fruit apple samples in case of dipped fruits in Procalcium solution 1%
compared with control fruits. The tocopherol treated fruits were sometimes
significant.
The results showed a reduction in fruit weight in case of treated sample
during cold storage time. Fruit firmness was significantly better in both
treatments of procalcium 1% and tocopherol 0.25%compared with control,
and reducing physiological disorders during cold storage period.
The study was carried out on trifoliate orange rootstock trees (Poncirus trifoliata L.)
at Ciano Research Station where the trees were sprayed with nutrients or gibberelic acid
GA3 or togethers, beside the control (without spraying). Different trea
tments of seed
storage were tested in order to study their effect on seed viability to increase it. The seeds
were stored for three months using four treatments: (a) seed storage in fruits at +4˚C, (b)
Storage in juice at +4˚C, (c) Storage at lab temperature, and (d) seed storage at fridge
temperature +4˚C. The results showed that all spraying treatments were positive at
postharvest, as compared with the control. However, treatment of seed storage inside the
fruit gave the highest significant germination rate for all spraying treatments. Treatments
of spraying with nutrients were the best. The viability of seeds considerably decreased for
all treatments of seed storage at fridge temperature +4˚C, whereas germination was zero for
seed stored in juice and seed stored at lab temperature.
This investigation was conducted to study the effect of cooling preservation
on some microbiological (total count of organism, yeast and fungi, Coliform
bacteria), chemical (total soluble solids, total acids, vitamin C) parameters and
sensory eval
uation of Broccoli during refrigerated storage and to determine the
acceptability of the best treatment of the broccoli by customer during
refrigerated storage. Two hybrids of broccoli, F1 Kondi and F1 Kibbah grow at
Abi Jarash farms of Damascus University in 2011/2012 season were used.
Three treatments were applied on two hybrids of broccoli. Treatments 1
(broccoli was stored without any packaging), treatments 2 (broccoli was stored
after packaging without vacuum sealed) and treatments 3 (broccoli was stored
after packaging with vacuum sealed).
Results showed and based on microbiology, chemically and sensory
evaluation that the best treatment to save the broccoli reverberated was
treatment 3 for the both hybrids of broccoli F1 Kondi and F1 Kibbah (broccoli
was stored after packaging with vacuum sealed) where the broccoli F1 Kondi
was preserved without any changes in sensory parameters and accepted
qualities for 15 days and for 10 days for broccoli F1 Kibbah.
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