الفهرس 
REVIEW OF LITERATUREOnly 14 pages are availabe for public view
 |  | from | 132 |  |  |
| | | from | 132 | | |
Abstract
Mai Hassan Ismail Hassan: Improving Fruit Cracking Resistance
of Wonderful Pomegranates. Unpublished M.Sc. Thesis, Department
of Horticulture, Faculty of Agriculture, Ain Shams University, 2018.
The present investigation was carried out in two successive
seasons of 2015 and 2016 on Wonderful“ Pomegranates trees grown in
sandy soil under drip irrigation system in a private orchard located at Giza
governorate, Egypt . Trees were sprayed two times (at fruits size 8-10 mm
& re- spraying at one month later) with Potassium silicate at (2500 &
5000 ppm) , Boron at(5 &10%), Kaolin (1 &2% ) , Zinc oxidase (1000 &
2000 ppm) with wrapping as a commercial treatments . of “wonderful” to
improve fruit cracking resistance “Wonderful“ pomegranates and
evaluate their effects upon yield components, physical, chemical fruit
properties and market conditions at 20 ± 2 °C(15 days).
Results indicated that the “Wonderful“ pomegranates cultivar had
the highest values of fruit weight and the minimum cracking values were
obtained by spraying boron at (5 %) and potassium silicate at (5000 ppm)
in both seasons and this treatments gave the maximum values with total
yield /tree,/feddan and marketable yield /tree,/feddan .Meanwhile ,number
of arils per fruit ,total soluble solids , total sugar ,total acidity , (arils)/fruit
weight was not affected but when fruits treated with wrapping, without
wrapping and zinc oxidase at (1000 ppm) sprays gave the minimum
mentioned above characteristics. However , fruit weight , arils weight ,
ascorbic acid, anthocyanin and tannins %were increased as influenced by
foliar spraying with all treatments in both studied seasons.
For the marketing experiment, preserve the fruits at 20 ± 2 ° C for
15 days. The treatment of trees with potassium silicate at 5000 & 2500
ppm as well as spraying with boron at a rate of 5 & 10% exhibited the
highest values for sensory tests of fruits of taste,
As well as the highest values for the qualities of physical fruits
of the peel thickness, hardness of fruits, the proportion of juice and the
least in loss by weight
In addition to the highest values of chemical qualities such as solid
soluble substances, ascorbic acid, anthocyanins and the least in the
content of tannins & total acidity. The comparison treatment was given by
covering and without cover. No significant differences between kolenite 1
& 2% and zinc oxide 2000 and potassium silicate 2500 ppm
Which gave intermediate values for the studied traits and for both
experiments
Therefore, boron at 5 % and Potassium silicate at 5000 ppm
treatments could be recommended for improving Wonderful pomegranate
cvs performance in cracking resistance alternative treatments to fruit
wrapping under similar conditions
Keywords: Pomegranate (Punica granatum L. wonderful), Foliar spray,
Potassium silicate, Kaolin, Zinc oxidase, Boron, Market
conditions, Fruit cracking, Fruit quality po