أجري البحث على أصل العنب B41 الذي تم إكثاره مخبرياً (vitro in) في الهيئة العامة للبحـوث
العلمية الزراعية بدمشق لدراسة تأثير تراكيز مختلفة من كلوريد الصوديوم في مرحلة الإكثار و التجـذير.
أوضحت النتائج أن أعلى نسبة نباتات متبقية (%98) و أكبر متوسط عدد للبراعم (43.8) و أكبر متوسـط
طول للنبات (58.8 سم) تم الحصول عليها في معاملة الشاهد بعد أربعة أسابيع من مرحلة الإكثـار، فـي
حين أدت المعاملة بـ mM 50 من كلوريد الصوديوم إلى خفض نتائج الإكثار و بفـروق معنويـة عـن
معاملة الشاهد، و قد تم الحصول على أدنى النتائج بالمعاملة mM 100 من كلوريـد الـصوديوم، بينمـا
المعاملة بـ mM 150 من كلوريد الصوديوم لم يتم الحصول فيها على أي نسبة نباتات متبقية بمرحلـة
الإكثار. كما حصلً على أعلى نسبة تجذير (30.85%) و أعلى متوسط عدد جذور (67.4) و أكبر متوسط
طول للجذور (cm 28.6) في معاملة الشاهد بعد أربعة أسابيع من مرحلة التجذير، في حين أدت المعاملة
بـ mM 50 من كلوريد الصوديوم إلى خفض نتائج التجذير و بفروق معنوية عن معاملة الشاهد، و قد تـم
الحصول على أدنى نتائج التجذير بالمعاملة mM 100 من كلوريد الصوديوم، في حين أدت المعاملة بــ
mM 150 من كلوريد الصوديوم إلى عدم الحصول على أي نسبة تجذير.
This current study was carried out on B41 grape rootstock
micropropagated in vitro at the General Commission for Scientific Agricultural
Research (GCSAR), Syria to study the effect of different concentrations of
sodium chloride on the multiplication and rooting stages. The results showed
that the highest average of survival plants (98%), the number of new buds
(8.43) and plant length (8.58 cm) were obtained in the control treatment after 4
weeks from multiplication stage. The treatment with 50 mM of sodium chloride
led to reduce the multiplication rates with significant differences, while the
lowest plant multiplication had occurred with 100 mM of sodium chloride and
no survival plants were remained by the treatment with 150 mM of sodium
chloride during multiplication stage. The highest rooting rates (% 85.30), the
number of roots (4.67) and root length (6.28 cm) were also obtained in the
control treatment after 4 weeks from rooting stage. The treatment with 50 mM
of sodium chloride led to reduce the rooting process with significant
differences. The lowest rooting results were observed with 100 mM of sodium
chloride and no rooting rate was observed when plants were treated with 150
mM of sodium chloride.
References used
Alam, S. M., M. A. Khan. S. M. Mujtaba and A. Shereen, 2004. Influence of aqueous leaf extract of common lambsquarters and NaCl salinity on the germination, growth, and nutrient content of wheat, Acta Physiologiae Plantarum. 24 (4): 359-364
Barlass, M and K. G. M. Skene. 1981. Relative NaCl tolerances of grapevine cultivars and hybrids in vitro, Z Pflanzenphysiol. 102: 147-161
Bavaresco, L., M. Fregoni and E. Gambi. 1993. In vitro method to screen grapevine genotypes for tolerance to lime-induced chlorosis, Vitis. 32:145- 148
This current study was conducted on gardenia plant (Gardenia
jasminoides.L.) cv. ellis. which was micropropagated in vitro to study the effect
of some plant growth regulators on multiplication and rooting, for the aim of
developing a complete in v
In this study, the effect of different concentrations of sodium chloride
(NaCl) (0, 50, 100, 150 mM) on some physiological characteristics and some
growth indicators of SO4 grape rootstock propagated in vitro was studied at the
laboratories of Gen
The trial was carried out during the season 2014, on grapevines
of Al-Baladi. Al Baladi, 20 years old, grafted onto rootstock, and trained in the trellis way, to study the influence of different levels of 4 times/season soil applied seaweed extract , on some qualitative and quantitative characteristics of Al-Baladi grapes.
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
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 p