Do you want to publish a course? Click here

Morphological Diversity For Two Mulberry Species (Morus Alba L.) And (Morus Nigra L.) In Some Locations In Tartous

التنوع المورفولوجي لنوعي التوت الأبيض (Morus alba L.) و الأسود (Morus nigra L.) لبعض المواقع في محافظة طرطوس

1511   0   34   0 ( 0 )
 Publication date 2017
  fields Groves
and research's language is العربية
 Created by Shamra Editor




Ask ChatGPT about the research

This research was conducted during the period of 2014 - 2015 in six locations ranging from a height of between (0-500 m) in Syria, Tartous Governate in order to survey and evaluate some mulberry types belong to (Morus alba and Morus nigra). 33 types (22 of white mulberry and 11 of black mulberry) were determined for the purpose of morphological and phenological characterization and for the determination of the degree of morphological relationship between those types in addition to setting their own taxonomic keys. Morphological analysis was done based on 14 morphology characteristics (leaves, catkins, fruits) in addition to a cluster analysis for all types belongs to white and black species and for each species alone. The morphological tree for all types showed two main groups with a contrast ratio of (48%), the first group included three types belong to black mulberry, and the second group included 30 types belong to both species with a contrast ratio of (0-38%), while the morphological tree for the black species types showed a contrast ratio of (47%) and (33%) for the white specie types. The degree of morphological similarity is variable between the studied types regardless of fruits color, and the percentage of contrast among the black mulberry types is higher than white mulberry types.



References used
BANERJEE, R; ROYCHOWDHURI, S; SAU.H; DAS, K. B; GHOSH, P; SARATCHANDRA, B. Genetic diversity and interrelationship among Mulberry genotypes. journal of genetic and genomics,34,8,2007,691-697
BARBOUR.R. J; READ. A. R; BARNES. L. R. Moracea. mulberry family morus L. mulberry. woody plant seed manual.2008,728-732
BOOTPROM.N; SONGSRI.P; KONGPUN.N; SABRAO. K. A. Genetics diversity based on horticultural traits and total soluble solid content in mulberry (Morus alba) varieties. journal of breeding and genetics,46,2,2014,231-240
rate research

Read More

This study was conducted at glasshouse of Citrus and Tropical Research Department in Tartus governorate, and Olive Nursery in Latakia governorate, during 2015 to determine the influence of Indol-3-Butyric Acid (IBA) doses on hardwood and softwood top cuttings of three types of M. alba L. (B-1, B-5, KH-8) and three types of M. nigra L. (M-4, KH-9, KH-1) and one fruitless type (B-3), which spreads in different locations in Tartus, Syria. Hardwood cuttings were prepared during February from one-year-old shoots, and the softwood top cuttings were prepared during August in 2015. The cuttings were treated with different doses of IBA (1000, 2000 and 4000 ppm) in addition to the control application 0 ppm. The cuttings were planted in the glasshouses in order to root.
At this study, two species of genus Equisetum L. have been recorded, that they were: Equisetum telmateia L. and Equisetum ramosissimum Desf. E. ramosissimum Desf. was recorded for the first time in Lattakia. The morphological features were used to separate two species: ( number of the scaly leaves in the node area, shape of the sheath, and number of its teeth, number of the grooves at the stem, length of the strobilus and its color, length of the lateral branches). This study showed that: the spores had three coats, the exosporium rounded by the spore like bars with a wide terminal that called: elaters. Also showed obvious difference in measurements the strobilus and the shapes of sterile and fertile stem.
The research aimed to evaluate the genetic diversity and the genetic relationship between 16 Hordeum vulgare genotypes (variaties and new lines), using SSR markers. 32 primer pairs were used in the analysis, five of them amplified primers monomorp hic alleles, while the remaining primers detected different alleles. A total of 126 polymorphic alleles were revealed by the 27 primer pairs. The number of different alleles detected on alocus ranged from 2 to 11with a mean of 4.66 alleles per locus. The polymorphic information content (PIC) values ranged from 0.21 to 0.88 with a mean value of 0.49, and the gene diversity ranged from 0.23 to 0.89 with a mean value of 0.53.The dendrogram was established using SSR data clustered into three major groups. The smallest genetic relationship was observed between line39 and line38 . The results proved the efficiency of SSR markers in the estimation of genetic diversity and in the clustering of the barley genotypes in Syria.
A study was conducted to evaluate the diversity among chickpeas accessions collected from Jordan for some morpho-agronomic traits, specially yield and its components. The evaluated material consisted of 137 accessions and three improved cultivars released in Jordan. The study was conducted at the Jordan University of Science and Technology Research Station using the augmented design. Some of the parameters used in the evaluation included the mean, standard deviation, range, coefficient of variation, diversity index. Also, a dendrogram to establish the relationship among locations where landraces were originally developed. Results indicated the presence of significant variability for all traits under investigation. Diversity index values (H′) exceeded 0.50 for all characters with the highest value for biological yield (0.84), followed by lowest pod height (0.82), grain yield (0.78), and straw yield (0.78). The following accessions were found to be superior over the improved cultivars in one or more of the studied characters: ILC 6941, ILC 6938, ILC 4411, and ILC 4096. These are important genetic resources for breeders to improve the chickpea crop. The results indicated the importance of the local landraces as a source of genetic variability that should be conserved, evaluated and utilized by breeders to improve the crop productivity and quality.
The research was conducted at the Maize Researches Department, General Commission for Scientific Agriculture Researches (G.C.S.A.R.) Damascus, Syria during the summer growing seasons of 2010, 2011 and 2012. Treatments were arranged in a Randomized Complete Blocks Design with three replications. The research aimed to evaluate genetic parameters for some traits like days to 50% silking, plant and ear height, ear length, ear diameter, number of rows per ear, number of kernels per row, 100 kernel weight and grain yield per plant using generations means analysis of two maize hybrids (IL.292-06 × IL.565-06, IL.459-06 × IL.362-06) to detect epistasis and estimates of mean effect [m], additive [d], dominance [h], additive × additive [i], additive × dominance [j] and dominance × dominance [l] parameters. Results showed that the additive - dominance model was adequate to demonstrate the genetic variation and its importance in the inheritance of most studied traits. Nonallelic gene interaction was operating in the control of genetic variation in most studied traits. The signs of [h] and [l] were opposite in most studied traits for the two crosses. Also, the inheritance of all studied traits was controlled by additive and non-additive genetic effects, but dominance gene effects play the major role in controlling the genetic variation of the most studied traits, suggesting that the improvement of those characters need intensive selection through later generations. The phenotypic variations were greater than genotypic variations for all studied traits in the two crosses, indicating greater influence of environment in the expression of these traits. Highly significant heterosis relative to mid and better parents, respectively was found for all characters, and this accompanied with inbreeding depression for all traits. Narrow sense heritability and genetic advance were low in most of the traits due to the dominance of non-additive gene action in controlling the genetic variation of the most studied traits and this predict low to medium values of genetic advance through selection process.
comments
Fetching comments Fetching comments
mircosoft-partner

هل ترغب بارسال اشعارات عن اخر التحديثات في شمرا-اكاديميا