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Register a new userEffect of different levels of pruning on flowering of some cultivars of Hydrangea macrophylla
تأثير نسب (شدة) مختلفة من التقليم في إزهار بعض أصناف نبات القرطاسية Hydrangea macrophylla
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Damascus University ورقة بحثية
Publication date
2014
fields
Groves
and research's language is
العربية
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تناول هذا البحث تطبيق نسبتي تقليم 50 % و 75 % على ثلاثة أصناف (Pia ،Nikko Blue , Emile Mouillère ) من شجيرات القرطاسية التابعة للنوع Hydrangea macrophylla. أجريت عملية التقليم على شجيرات القرطاسية الأرضية البالغة من العمر أربع سنوات و بوجود شاهد دون تقليم. أجريت دراسة أهم المؤشرات الإنتاجية (عدد النورات الزهرية – عدد الأزهار– قطر النورة الزهرية - طول الساق الزهرية) للمقارنة بين المعاملات المدروسة.
This work was conducted to study the effect of two levels (50 and 75%) of pruning on flowering (number of clusters, number of flowers, diameter of flowers, flower-stem length) of three cultivars (Emile Mouillère - Nikko Blue - Pia) of Hydrangea macrophylla. Pruning was done on the shrubs of four years old in addition to a control without pruning. Results indicated that there were differences among cultivars in response to the proportion of pruning. Emile Mouillère, a cultivar with white flowers, the results showed an increase in the proportion of pruning was associated with a reduction the number of fully developed inflorescences per plant compared to control. For Nikko Blue, a cultivar with blue flowers, the results showed that level (75%) was the best in all studied indicators while for Pia, a cultivar with deep pink flowers, the results showed that pruning with 50% level was the best in all productivity indicators.
References used
Adkins, J. A and M. A. Dirr. 2003 .Remontant flowering potential of ten Hydrangea macrophylla (Thunb.) Ser. cultivars. Dep. Hort., Univ. Georgia, Athens, GA 30602-7273,USA
Bailey, D. A. 1989. Hydrangea Production. Timber Press. Portland, Oregon. 91pp
Bailey, D. A. 1992. Hydrangeas, p. 365-383. In: R.A. Larson (ed.). Introduction to Floriculture, Second Edition. Academic Press. San Diego, California
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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 .
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have shown effects on the s
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