Hasn Al-assaf(1)*, Abdullah Al-youssef(1), and Khald al-mohammad(2)
(1) General Commotion For Scientific Agricultural Research, Damascus, Syria.
(2) Dept. of orchards, Faculty of Agriculture, University of Aleppo, Aleppo, Syria.
(*Corresponding author: Hasan Al-assaf, Email: abdullatef74@gmail.com)
Abstract
This study was applied in the season (2017_2018) and aimed to elect the best genotypes according to the most important traits that affect productivity and the attributes associated with yield under the conditions of the eastern area of Aleppo. and its number (78) _74 strain and 4 local varieties( Al-Baladi Al-Muhsin, Hama 2, Hama 3, Cyprus Certified, where the design of the complete random sectors was used according to three replicates under the conditions of irrigated cultivation. The most important morphological and productive traits The degree of heritability was calculated in the broad sense (h2bs) and both the phenotypic and genetic association factors were estimated between the studied traits and yield, the PAST program used to perform a cluster analysis to classify the studied genotypes according to the seed yield quality, and the results showed that there were significant differences between the genotypes of all studied traits, and the highest value of the century length trait was (17.33) cm at the genotype G6, where the G24 genotype was characterized by the highest attribute value The number of seeds in the plant where the value for these traits was (259), and the G69 genotype was characterized by the highest value of the number of seeds in the century (6) seeds, and the G37 genotype recorded the highest value of the seed weight trait in the plant (94.3) g, and the G9 genotype outperformed Yields all studied genotypes which have values H of this quality (3777.8) kg / h, and the highest value for the genetic variation was recorded for the seed yield trait and the highest value for the degree of heritability is the value of the seed weight value in the plant (0.98), and the path modulus was high for the number of seeds in the plant (0.463), so its direct effect was on Yield is high while direct effects of other traits were neglected and the highest contribution to yield was the contribution of the number of seed characteristics in the plant. The genotypes were divided into four groups using cluster analysis according to their productivity and the best group was the group that includes the genotypes (G9, G17, G23, G16, G15, G8), and a highly significant genetic and phenotypic association b Most of the traits were characterized by high and significant correlation between yield and all the following studied traits (plant height, horn length, number of seeds per century, number of seeds per plant, weight of seeds per plant).
Keywords: bean, genetic link, phenotypic correlation, cluster analysis, degree of inheritance, pathway analysis.
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