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Register a new userEffect of Some Apple Rootstocks at Growth Vigor and Productivity of Golden Delicious Cultivar in Dahr Al-Qsair Region
تأثير بعض أصول التفاح في قوة نمو و إنتاجية الصنف Golden delicious في منطقة ضهر القصير
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أجريت الدراسة في محطة بحوث برشين التابعة للهيئة العامة للبحوث العملية الزراعية على أشجار بعمر 13 عام من الصنف Golden delicious مطعمة على ثلاثة أصول تفاح (الأصل البذري Malus domestica, الأصلين الخضريين MM109 , القوي و MM111 النصف قوي) و على مدى عامين ( 2014, 2015 ). ترّكزت الدراسة حول تأثير الأصل في قوة نمو الصنف المطع عليه (محيط الساق – حجم تاج الشجرة – تغيرات طول الطرود و الإنتاجية).
The study was performed in Barshin Research Station- General Commission for Scientific Agriculture Research on the trees age of 13 in grafted with Golden Delicious Cultivar on three rootstocks (seedless rootstock Malus domestica, vegetative strong rootstock MM109, and MM111 half strong rootstock) over the years (2014.2015 ).The study focused on growth vigor (the stem circumference above the grafted area ,crown size - the rate of shoots length and productivity).
References used
ABDALLA, O. A., KHATAMIAN, H., AND MILES, N. W.(1982).Effect of rootstocks and interstems on composition of ‘Delicious’ apple leaves. J. Am. Soc. Hort. Sci., 107: 730-733
AL-HINAI, Y. K., ROPER, T.R.(2004). Rootstocks effects on growth quality of 'Gala' apple. Hortsci. 39(6). P .1231-1233
ANDERSON, P.C., LOMBARD, P.B. AND WESTWOOD, M.N. (1984). Leaf conductance, growth, and survival of willow and deciduous fruit tree species under flooded soil conditions. Journal of the American Society for Horticultural Science, 109: 132–138
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The study was performed over the years (2014٬2015) in Barshin
Research Station- General Commission for Scientific Agriculture
Research on the trees age of 15 in grafted with Golden Delicious
Cultivar on two rootstocks, strong: seeds ( Malus domest
ica) and half
strong (vegetative Malling-Merton "MM111"). The study focused on the
effect of the original on the concentration of each of the elements (N-P)
in the leaves and branches of the Golden delicious Cultivar grafted on
those rootstocks.
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.
In this research, we have studied the effects of some summer pruning at the
mid June and Juli, in addition to the common periodical winter pruning during
February.
Both studies were done to evaluate calcium concentration of fruits, quality
and yi
eld the apearance of physiological disorders during the storage and
fruits. Experiments were conducted on 8 year apple trees of Starking Delicious
and Golden Delicious, which are sensiitve to laek of calcium and as a result
caused bitter-pit as an important physiological disorder on apple fruits.
Summer pruning of apple trees at mid june increases their content of
calcium and their colors, also decreases physiological disorder, weight loss
during storage, without affecting the annual yield of trees.
Accorrding to the attained results, we recommend the farmers of apple trees
to follow summer pruning, because of its benefits on improving the condition of
trees and achieving the balance between vegetative and generative growth, and
reduced the alternate Summer pruning. Also improve the quality of fruits, their
storability and their resistance for some physiological disorders during storage.
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.
This study was carried out at the Agricultural Scientific Research center In Sweida -
GCSAR to study the effect of potassium sulfate and organic manure on some of soil
characteristic in addition to tree growth vigor and fruit traits of Starking del
icious apple
cultivar. The results revealed significant effect in reducing the (pH) of the soil in the three
treatments; potassium sulfate fertilization, organic manure fertilization and application of
potassium sulfate and organic manure together which were (6.608), (6.708) and (6.558),
respectively, in the comparison with the control (6.768). In addition, significant differences
were shown in the (EC) between the former treatments (0.1532 ds / m), (0.1692 ds / m) and
(0.0937 ds / m) compared to the control (0.2217 ds / m). Concerning growth vigor and fuit
traits, the results showed a significant increase in the average of shoot length in the
previous treatments (66.43, 77.33 and 71.37 cm, respectively), compared to the control
(59.37 cm), while showed a significant increase in leaf area in organic manure treatment
and potassium sulfate with organic manure together (35.54 and 37.21 cm 2, respectively),
compared to the control (30.54 cm 2). The results of analysis of variance in fruit firmness
showed higher significant variation of potassium treatment (8.477 kg / cm 2) than the
other treatments which, also revealed significant increase of total soluble solids
(16.82%,15.2% and15.37%,respectively) compared to the control (14.23%), and a
significant increase in total sugars and in percentage of treatable acidity. Consequently, the
result showed that the addition of soil fertilizers treatment contributed to improve some of
soil characters, tree growth vigor and some of the quantitative and qualitative traits of
apple fruits.
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