نفذ هذا البحث خلال موسم 2014 - 2015 في مركز البحوث العلمية الزراعية. يهدف البحث إلى تحديد أثر بعض المؤشرات البيولوجية و الوراثية على نجاح تطعيم غراس الخرنوب بالمشتل بدراسة ثلاثة أنماط من التطعيم: الذاتي و المتشابه و المتباين. استخدمت أصول بذرية بعمر سنة من طرازين وراثيين منتخبين في صنوبر جبلة و الحفة, أخذت المطاعيم من غراس بعمر سنة نتجت من هذين الطرازين أو من فروع بعمر سنة منهما أيضاً و نفذ التطعيم بالقلم بطريقة التطعيم اللساني في فصل الربيع.
أظهر التطعيم الذاتي أثر العوامل البيولوجية و الوراثية للمطاعيم على نجاح التطعيم, حيث تفوق التطعيم الذاتي على المتباين بدلالة معنوية لكلا الطرازين الوراثيين سواء كان الطعم فتياً أم معمراً. و تفوق التطعيم الذاتي معنوياً على الأنماط الأخرى من حيث تطور المطاعيم. كما وجد تباين في قيم المؤشرات البيولوجية بين الطرازين المدروسين, لصالح طراز صنوبر جبلة على طراز الحفة بشكل غير معنوي.
بالنسبة لعمر المطاعيم, تفوقت قيم التطعيم المتباين بالطعوم الفتية معنوياً على التطعيم المتباين بالطعوم المعمرة من حيث نسبة نجاح التطعيم و قيم المؤشرات البيولوجية المدروسة.
This research was carried out during 2014 - 2015 in Scientific Centre for Agricultural
Researches. This research aims to determine the effect of some biological and genetic
indicators on the success of Carob seedlings in nurseries by studying three kinds of
grafting: Auto-grafting, Homo-grafting and Hetero-grafting. Rootstock aged one year and
resulted by two chosen genetic types, namely, SnobarJablah and Alhafa were used. Scions,
they were taken either from seedlings with age of one year resulted by these two types or
from branches aged one year from the selected two types as well. Grafting was conducted
by using Whip Graft way in spring.
Auto-grafting has indicated the importance and the role of biological and genetic
factors for grafts and their impact on rates of grafting success. Concerning rates of success,
the results have shown that Auto-grafting surpassed Hetero-grafting with a significant
reference for both of two genetic types, regardless if the used scion was young or old.
In addition, Auto-grafting has shown surpass on other kinds of grafting, in terms of
subsequent growth of scions. On the other hand, a variety in biological indicators values
has been noticed between the two genetic studied types. In favour of SnobarJablahtype
againstAlhafaʼs type. However, the differences of values were not significant for the most
of conducted measures.
As for the age of scions, the results have pointed out that values of Hetero-grafting
with young scions surpassed values of Hetero-grafting with old scions in terms of the rate
of grafting success and values of biological studied indicators.
References used
BATTLE, I; TOUS, J.Carob Tree. Ceratonia siliqua L. Promoting the Conservation and Use of Underutilized and Neglected Crops. Institute of Plant Genetics and Crop Plant Research, International Plant Genetic Resources Institute, Rome, Italy, 1997
BLETSOS, F; THANASSOULOPOULOS, C; ROUPAKIAS, D. Effect ofgrating on growth, yield and verticillium wilt of eggplant. HortScience, 2003, 38: 183- 186
HARTMANN, H.T; KESTER, D.E. Plant Propagation-Principles and practices. 4th edition, Prentice Hall, Inc. Englewood Cliffs, Newgersey, U.S.A., 1983, 610
This study aimed to obtain seedlings balanced and superior in growth, by searching
the effect of seed size on the growth and development of seedlings of carob tree
( Ceratonia siliqua L.) developing in containers Minirhizotron in the growth room in
This research was conducted in seedling area belonging to Tishreen University and
in the Coast seedling belonging to Agricultural Directorate in Lattakia. Results has shown
that, the pear variety Cocia grafted on pear Syrian rootstock was significa
The aim of this study was to determine the best size and shape of containers to produce higher quality seedlings, and determine which treatments (moving the seedlings to other beds, or transfer to bigger containers, or pruning the shoot and root syst
This research was conducated on Ceratonia siliqua L. in vitro to study the effect of
some growth regulators in both multiplication and rooting stage. And determine the best
concentrations wich lead the highest rate of multiplication (interms of number of shoots
and length), and the best rooting (interms of percentage of rooting, number of roots and
length).
A half diallel set of crosses among six highly diverse barley (Hordeum
vulgare L.) genotypes were evaluated at Karahta station of field crops research
(GCSAR) Damascus Governorate, during 2010-2011 and 2011-2012 seasons to
study heterosis and comb