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Register a new userFactors affecting rooting of some grape rootstocks by hard wood cuttings
تأثير بعض العوامل في تجذير بعض أصول العنب (B41, SO4, Ru140) بالعقل المتخشبة
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أجري البحث في كلية الزراعة بجامعة دمشق "مزرعة أبي جرش" لتحديد تأثير بعض العوامـل فـي تجذير العقل المتخشبة لأصول العنب 41 B و SO4 و Ru140 خلال موسمين. أظهرت النتائج أن نـسبة التجذير راوحت بين 50 إلى 65 % مع وجود فـروق معنويـة بـين الأصـول المـستخدمة. إذ تفـوق الأصل B41 بنسبة تجذير بلغت 47.65 % تلاه الأصل SO4 ثم الأصل Ru140 بنسبة 44.50 % و تبين أن المعاملة بهرمون حمض اندول بيوترك IBA كان له الأثر بزيادة نسبة التجذير و المؤشرات المدروسة جميعها (متوسط طول الجذور و الأوراق و عددها و النمو الخضري) مقارنة بالشاهد معنوياً. و أدى تخـزين العقل في الدرجة 4°م إلى زيادة نسبة التجذير و متوسط عدد الجذور بفروق معنوية مقارنة بالشاهد فـي شروط الحقل. و أعطت مواعيد الزراعة فروقاً معنوية إذْ تفوق الموعد الثالث (منتـصف شـباط) علـى المواعيد كلّها للمؤثرات المدروسة. كما بينت النتائج وجود تفوق معنوي للعقل القاعدية و الوسطية فـي المؤشرات المدروسة على العقل الطرفية جميعها، و كذلك وجود فروق معنويـة بـين العقـل القاعديـة و الوسطية لمتوسط طول الجذور (26.5 و 32.4 سم على التوالي) في حين لم يلاحظ أي فرق معنوي لموقع العقل في نسبة التجذير.
This research was conducted at the Agriculture Faculty, Damascus university to determine some factors affecting rooting of some grape rootstocks (B41, Ru140, SO4) by hardwood cutting during two subsequent seasons. The results showed that Rooting percentage ranged between 50 to 65%. with significant differences between tested rootstocks. The highest rooting percentage was obtained on B41 rootstock reached 65.47% followed by SO4 and then by Ru140 which gave the lowest percentage 50.44%. The treatment with hormone IBA increased rooting proportion and all the parameters (number and length of root, number of leaves and shoot length) were significantly higher than parallel parameters of the control. The storage of cuttings at 4°C for 50 days increased significantly proportion of rooting and number of roots compared with the storage under field condition. There were significant differences among dates of planting where the third date (mid February) showed superiority in all parameters studied over other dates. The cuttings from basal and middle of annual growth gave a significant superiority in the average root length (5.26–4.32 cm, successively) compared to the terminal cuttings while there was no significant effect to the cuttings position on rooting proportion.
References used
Adsule, P.G. and J. Satisha. 2006. Rooting behavior of Grape rootstocks in relation to IBA concentration and biochemical constituents of mother vines. ISHS Acta Horticu., 785
Alley, C. J. 1961. Factors affecting the rooting of Grape cuttings. Growth regulators. Am. J. Enol. Vitis. 12(4): 185–190
Atici, O., S. Erdal, O. Kaya and C. Kose, C. 2011. Comparative evaluation of oxidative enzyme activities during adventitious rooting in the cuttings of Grapevine rootstocks. J. the Sci. Food and Agric., 91: 738–741
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Semi-wooden cuttings of two - jujuba cultivars were vegetitirely propagated
under greenhouse conditions, by using different concentrations of Indole
butyric acid (IBA), at Hanadi Research Station, Lattakia.
The rooting percentage reached 71.3% aft
er two months for the Ziziphus
jujube mill, and 83.3% for the Ziziphus jujube tayan tsizao, when they were
treated with 4000 mg/L of (IBA) for five seconds while the rooting percentage
was zero for the non-treated cuttings (Control) .
A study on the propagation of female kiwi trees (Hayward variety) by wooden
cuttings, using plant growth regulators, was conducted at Latakia Agricultural
Research Centre during the seasons 2009, 2011 and 2012. Two dates for collecting
cuttings (J
anuary and February) from kiwi trees which were selected. On each date,
the cuttings were divided into three groups according to cutting location on the
shoot (basal, middle and apical). The NAA and IBA growth regulators were applied
at several concentrations, in addition to two treatments of the mixture of both growth
regulators.
This investigation was conducted on Ru140 grape rootstock at the General
Commission for Scientific Agricultural Research (GCSAR), Damascus with the
aim of in vitro vegetatively micropropagation using some plant growth
regulators on multiplication
and rooting to determine the best combinations
and concentrations of plant growth regulators that result in the best
multiplication rate, and best rooting crekeria (rate and roots number and
length). Results demonstrated that, the best medium for in vitro
micropropagation of the studied rootstock was the modified MS medium
supplemented with 4.44 μM BA + 0.49 μM IBA with multiplication rate of 7.72
new shoots every 4 weeks, and shoots lengt of 5.54 cm. These shoots were
transferred for 4 weeks to among elongation medium containing the same
medium with the addition of Kinetine at a concentration of 2.22 μM instead of
BA which led to a shoot elongation rate of 7.87 cm, then these shoots were
transferred to rooting medium for rooting, It was shown that using auxin IBA
at a concentration of 4.44 μM resulted at the highest rate of rooting (87%) with
the largest number of roots (7.56) when using the auxin IBA concentration μM
4.44 compared with the rest of other transactions and with the control as well.
However, The highest length of roots (6.29 cm) was observed on medim
contained lower IBA concentration (2.22 μM). Rooted Plants were acclimatized
gradually to ex vitro conditions with 70 % efficiency.
Studying of using of semi-hardwood cuttings that were got from
different ages for Magnolia gradiflora L. trees: Young trees that are
15 years old, middle-aged trees that are 30 years old, and only one old
giant tree which is 110 years old were per
formed by treating the
cuttings with Indole Butric Acid Rooting Hormone 2000 P.P.M. which
was used during three periods of time: 10, 20 ,and 30 seconds under
green house conditions.
Jasminum sambac, or Arabian jasmine is one of the most important
Jasminum species in perfume industry. It is an ornamental evergreen erect
shrub. Flowering date starts from the early May till the end of October. Syrian
climate is very suitable for
the growth and the flowering of the shrub, therefore
the study was carried aut to investigate the effect of some major factors on
rooting of semi-hard wood cuttings.
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