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دراسة التوافق وعدم التوافق الذاتي في بعض أصناف الزيتون المزروعة في مركز البحوث الزراعية في اللاذقية

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 Publication date 2014
and research's language is العربية
 Created by Shamra Editor




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References used
لبابيدي , محمد وليد 1990 بيولوجيا إزهار الزيتون لصنف الزيتي أطروحة ماجستير جامعة حلب 134 ص
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The self-incompatibility problem appeared in the Khodeiry variety widely grown In Lattakia. When this phenomenon was studied on the Khodeiry variety in two areas (Jabla and Boqa), the results showed that this variety is self-sterile, i.e. it is not able to pollinate itself or the flowers of other trees of the same variety, and its fruit is very small and do not contain seeds. The results also showed that the flower abortion percentage in the Khodeiry variety is due to the genetic factor which varies depending on the variety. The study investigated the self-compatibility in some olive varieties in order to use them as pollinizers for the Khodeiry variety with the result that the Gellet, Soufrawy and Sourany varieties are particularly compatible and have a high compatibility with the Khodeiry variety. Based on these results, it is recommended that pollinated varieties are grown between olive orchards to improve fruit and to increase its production.
A field trail was conducted at Jeleen Research Station, Dara,a governorate, Syria, during two consecutive growing seasons (2010/ 2011-2011/ 2012), in order to evaluate the role of some cultural practices in improving nitrogen use efficiency and gr ains quality characteristics of four wheat varieties (Acsad1105, Acsad1229, Acsad885 and Acsad901). The experiment was laid according to randomized complete block design-split, with three replicates. Leaf area index, grain starch content and grain yield were significantly higher during the first growing season, in the wheat variety (Acsad901), for the first planting date, and nitrogen rate (200 Kg N. ha1-), when nitrogen fertilizer was added in two splits (1.25, 68.60 %, 1051 g. m-2).
In this search we characterized 8 double purposes olive varieties (Mawi Istanbuli, Khilkhali Khishen, Dan, Mniekri, Doaibli, Khilkhali Saghir, Karamani Modabal, Sourani), which cultivated in ACSAD Gene bank in Gellin by ISSR molecular markers to determine the relationship between these varieties, we noticed that these varieties are so close to each others depending on quantitive traits, which ranged from 60% and 85%, it was noticed that Mneikri was apart from the other varieties in its traits, polymorphic rate was 92.94%.
The research was carried out at Tal Hedya Research Center in Aleppo, General Commission for Agriculture Scientific Research (GCSAR), Syria, during 2011 and 2012 seasons. Seven genotypes of cotton were used, and complete diallel hybridization was m ade to study general and specific combining ability of some productivity traits (sympodial branch number, actual boll number and seed cotton yield). General combining ability (GCA) indicated that the parental genotype Cherpan432 had a high significant GCA for sympodial branch number and actual boll number, but the parents Aleppo118 and Deir El-Zour22 had the high GCA for seed cotton yield. This is a clear indication that these parental genotypes had the largest number of additive genes action, which plays important role in the inheritance of the above-mentioned traits. The estimation of SCA values showed favorite and high significant values in many hybrids resulted from parents, which had highly significant GCA, which means that the gene action type is (additive x additive), and this refers that these hybrids possessing the largest number of additive genes. High heritability broad sense refers to importance of genetic variance in the inheritance of all characters, but heritability in narrow sense values were low in general, indicating the importance of dominance and epistasis genes in the inheritance. According to this result it is recommended to follow the cross method for improvement of the studied traits.
The current research aimed at identifying the effect of marriage of relatives in the personal social consensus among a sample of students of Al-Baath University. The study sample reached (320) students of Al-Baath University in Homs (160) of the people in the case of marriage of relatives and (160) of the people in the case of marriage of the far away. In this study, the researcher used the measure of personal social compatibility .

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