This study was carried out in AL Swaida nursery during 2009 and 2010
seasons to study effect of time and grafting high are on the growth strength of
apple cultivars: Golden delicious، Stark rimson, Starking delicious. Results
showed that Golden de
licious preponderated on the other cultivars in diameter
average (9.06 mm) at 3cm above the grafting area (5cm above soil level). The
study also confirmed that Starking delicious showed significant superiority(p
<0.05) in term of growth strength on the other two cultivars when grafting was
carried at 5cm and 20cm above soil level and the best of leaf area (2862،89cm2)
was observed at 20 cm above the soil level when grafting took place in 31 of
August.
This research was carried out on (10) years old ( Golden delicious & Starking
delicious ) apple trees . which were planted in AlKafron region – Tartus Governorate under
high density system .
The research aims to study the effect of severity of dor
mant pruning on yield of apple
trees during (2012-2013) .
There were the results were found :
1- There wasn't any effect of pruning treatments on total soluble solids content or
total sugars .
2- Pruning treatments were better than control in fruit set in both cultivars , in
Golden delicious, were ( 40.75 - 33.20 %) in severe Pruning and control, respectively , in
starking delicious , were (31.35 – 26.30 %) in severe Pruning and control, respectively ,
and Pruning treatments were better than control in average of weight fruit in both cultivars
, in Golden delicious, were (140.50-129.30) g in severe Pruning and control, respectively ,
in starking delicious , were (151.70-139.90) g in severe Pruning and control, respectively .
3- Pruning treatments resulted to reduce total acidity content .
4- Pruning treatments resulted to reduce yield by (14.19-19.72)% in Golden
delicious and starking delicious , respectively , comparing with control .
Apple Fruits (Malus domestica Bork. cv. 'Golden Delicious') were
harvested at three successive dates with intervals of one week between each
date. The fruits were packaged with polyethylene films and then stored at 0±1
oC to study the effect of th
ese factors on the quality of the fruits and their role
to reduce weight loss after harvest. The natural loss of the fruit weight and
quality indices: fruit firmness, total soluble solids, titrable acidity and starch
content were studied.
This study was conducted on flowering apple shoot of Golden Delicious, in
order to study the effect of application of some chemical substances, α-
Tocopherol (0.25%) and a mixture of α-Tocopherol (0.25%) and Glycerine 5%,
at 24, and 48 hr before f
reezing incidence, and on best time of application on
apple trees to reduce the effect of freezing.
