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Genetic and phenotypic Analysis of Some Productivity and Qualitative Traits of Some Syrian cotton Genotypes in Hama Governorate

التحليل الوراثي و المظهري لبعض المؤشرات النوعية و الإنتاجية لعدة طرز من القطن السوري في محافظة حماه

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 Publication date 2017
  fields Field Crops
and research's language is العربية
 Created by Shamra Editor




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Nine Syrian cotton genotypes i.e. Aleppo 33/1, Aleppo 118, Aleppo 90, Aleppo 40, Aleppo 124 Rakka5, Deir Al-Zour 22, Line 106 and Rusafa, were used for statistical and genetic analysis for productivity and some chemical indicators of seeds: Lint percentage%, cotton weight per plant/g, percent of oil in seeds and pulp, percent of protein in seeds and pulp, percent of humidity in seeds and pulp, to explore the potentiality of the genotypes in the studied region, and to establish a program for the production of cotton and seeds, also to determine the selective indecies to be used to improve cotton productivity and seed components, using randomized complete block design with three replications. The experiment was conducted in Salhab village, Al-Ghab region, Hama governorate, Syria, during 2015 season.



References used
A.O.A.C. (1980). Association Official of Analytical Chemists. Official methods of analysis 13th ed. Washington, D.C. U.S.A
Ashokkumar, K.; and R. Ravikesevan (2011). Conventional and molecular breeding approaches for oil and seed protein content improvement in cotton. International Research Journal of Plant Science. 2(2): 037-045
Burton, G.W. (1951). Quantitative inheritance in pearl millet Pennisetum glacum. Agron. J., 43: 409- 417
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Seven cotton varieties (Rakka 5, Aleppo133, Aleppo 90, Aleppo 118, Aleppo 40, Deir 22, and Line124) were used in the study of some quantitative characteristics of cotton yield and its components (seed cotton weight per boll/g, 100seed/g weight aver age, lint percentage %, seed cotton weight per plant/g, total dry matter weight, seed cotton yield per unit area kg/ha), and physiological qualities (leaf area cm2, leaf area index %). The seven varieties were grown in Salhab (Al-Ghab region, Hama) in 2012 using randomized complete block design with three replications. The study included estimating variance, broad sense heritability, genetic progress, and genetic correlation between cotton yield and its components, which is to be used in breeding programs.
Seven cotton varieties ( Rakka5, Aleppo133, Aleppo90, Aleppo118 , Aleppo40, Deir22, Line124) were grown in village Salhab ( Al-Ghab region , Hama) in 2012 using randomized complete block design with three replications. were used to study estimation of variance, broad sense heritability, genetic progress and correlation some of their technological characters (Staple length mm, Length uniformity% , Fiber fineness %(micronaire), trength Fiber(g/tex), Fiber elongation%, fiber maturity%), that’s to explore potentials Genotypes in search region and put the numerous selectoral evidence in order to obtain an additive and fast improve on the technological characters, The study showed significant differences between in the studied genotypes, for most of the considered traits. The study suggested a variation of the values of Heritability, Genetic advance in the characteristics technological of cotton., the highest Heritability of which was in the Staple length and than trength Fiber, Fiber elongation , Fiber fineness, fiber maturity, Length uniformity, characteristics where the inheritance degree reached (0.98, 0.97, 0.89, 0.80,0.75, 0.30) , genetic development% (1.03, 1.35, 0.36, 1.31,1.22, 0.11). The results also showed a positive significant correlation between Staple length and trength Fiber (r = 0.901**), also between Fiber elongation with fiber maturity and Length uniformity ( r = 0.64**, r = 0.422**), and this gives us the area and ease of movement to put the numerous selectoral evidence in order to improve the technological characters of cotton.
Succes of a breeding program depends, to a great extent, on understanding the gentic behavior of the traits. This investigation was conducted to study and examine the inheritance of some economically important characters such as: total bolls numbe r, actual bolls number, ginning percentage , boll weight, harvest index, flowering earliness, maturity earliness, plant height,and fiber fineness.
The experiment was carried out at two planting dates in a Randomized Complete Blocks Design with three replications at Maize Research Department, General Commission for Scientific Agriculture Researches (G.C.S.A.R.) Damascus, Syria, during two cro pping season 2011 and 2012 to study the phenotypic and genotypic coefficients of variation, heritability, genetic advance, phenotypic correlation and path coefficient analysis for grain yield per plant, its components and the height of plant and ear of two maize hybrids (IL.292-06 × IL.565-06, IL.459-06 × IL.362-06).
Seven cotton genotypes (Rkka5, Aleppo1-33, Aleppo90 – Aleppo 118, Aleppo 40, Deir22, and Line124), were used to estimate variance and genetic and phenotypic correlations between seed cotton productivity and its components [earliness in flowering a nd maturity(day), plant height (cm), number of vegetative and reproductive branches, number of bolls per plant, 100 seed weight (g), average boll weight (g), lint percentage (%), and plant yield (g)], to be used as selection indices for higher yield performance in breeding programs. The experiment was carried out in Al-Ghab region (Hama) in 2012- 2013 growing season using randomized complete block design (RCBD) with three replications.
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