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Register a new userEffect of fertilizer and different packing methods on the storage capacity of carrots (Nantes CV)
تأثير المعاملات السمادية و طرائق التعبئة المختلفة في زيادة القدرة التخزينية لصنف الجزر نانتس Nantes
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نفذت الدراسة في مزرعة كلية الزراعة بأبي جرش خلال الموسم الزراعي 2012-2013 . في أثنـاء نمو نباتات الجزر Nantes طبق ثلاث معاملات سمادية (سماد معدني، مخصب عضوي، معاملة مشتركة للسماد المعدني و المخصب العضوي). و عند الحصاد، عبئت الجذور في ثلاث طرائق مختلفـة (صـندوق، أكياس بولي ايثلين مثقبة، أكياس بولي ايثلين غير مثقبة) و خزنت في درجة حـرارة 4-5˚س و رطوبـة نسبية 90 % لمدة 94 يوما.
The experience was carried out at Abi-Jarash farm, Faculty of Agriculture, Damascus University during the 2012 - 2013 growing season. During plant growth, three fertilization treatments were applied (mineral, T1 organic, T2 and a combined of mineral and organic fertilizers, T3). At harvesting, roots were packed in three different ways (box, perforated polyethylene bags and non-perforated polyethylene bags) and stored in 4-5˚C and RH 90% for 94 days.
References used
Amerine, M. A. and C. S. Ough. 1980. Methods for analysis of musts and wines, John Wiley and Sons, New York
Combrink, N. J., P. E. Hartmann and O. Southwood. 1996. The effects of ripeness, packing and cold storage treatment on the quality of Tomatoes, Journal of Southern African Society for Hort. Sci. 6(2): 82-85
Dessouky, S. M., A. A. Atwa. W. Y. Riad and S. M. El-Said. 1987. Physiological studies on improving carrot storage. (B) Effect of root size, packing, and temperature on carrot storage, Agricultural Research Review. 59 (3): 221- 236
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هدف البحث إلى دراسة فعالية المخصبات العضوية والأسمدة الكيميائية في صفات جودة محصول الجزر صنف "Nantes"
The objective of this research was to study the refrigerated condition (temperature +-1°C, and relative humidity of 75-85%) and non-refrigerated methods of packaging and treatment with MCP-1 on the storage capacity of two onion cultivars (round and elongated). The experiment was carried out in the College of Agriculture - University of Damascus .
This investigation was done to study the effect of spray for two times with
CaCl2 0.5% and 1%, high potassium fertilizer and dipping with 2% CaCl2, in
addition to packaging with polyethylene films on the storability of pear fruits
"Coscia C.V". Th
e results showed the significant superiority of high potassium
fertilizer treatment on the other treatments concerning total and single sugars
after harvesting time, while there weren't significant differences between the
other treatments concerning the remaining indicators. After four months of
storage, the packaging treatments were able to the significantly reduction of
weight loss, in addition to preserving the firmness and total soluble solids in the
comparison with unpackaged ones, the average of weight loss in unpackaged
treatments was 15% and 0.65% in packaging treatments, which led to stop the
storage of unpackaged treatments and continue packaging treatments until 7
months. After 7 months, the results showed that the dipping with 2% CaCl2
revealed the high weight loss, while was the least with high potassium fertilizer
treatment, on the other hand there were no significant differences between
treatments for firmness, total soluble solids and tetra table acidity, while total
and single sugars showed significant differences between treatments. Moreover,
the sensory tests assured the importance of packaging with CaCl2 treatments to
improve storability and quality of pear fruits, which CaCl2 1% packaging
treatment got the highest values for most of sensory tests.
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 effect of different harvesting dates on the quality and storage ability
was studied for fruit of Coscia pear cultivar, which planted in the area of Daher
Aljabal- Sweida during two successive seasons 2007-2008. Fruit were harvested
in three di
fferent dates by week time intervals and stored for seven months at
(0-1 Cº and 90-95 % RH) in the storage units of apples and vine research
department. The effect of harvesting dates of fruit on the physical and chemical
properties was determined during period of 7 months in cold storage, by month
time intervals. The second date of harvest affected by decreasing weight loss
percentage, decay percentage, titratable acidity T. A, starch content and
firmness, in addition to that total soluble Solids T. S. S, number of acidity PH,
storage ability and shelf life were increased compared to the harvested fruit in
the different dates.
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