نتایج جستجو برای: showed highest diversity coefficient
تعداد نتایج: 1469276 فیلتر نتایج به سال:
Genetic diversity is the base of plant breeding. In present study 19 chemical and morphological traits in 36 genotypes were investigated with a 6×6 simple lattice design in Tirtash Education and Research Center. Results showed significant differences among genotypes for all studied traits. The highest and the lowest genotypic variation coefficient were related to percentage of sugar and nicot...
Diversity is one of the most important issues in studies of vegetation ecology. This study was carried out in research forest of Tarbiat Modares University for surveying herbaceous and woody species diversity in relation to topographical factors (altitude, slope and aspect). For this purpose, 48 plots 400 m2 (20×20 m) were established in the region using selective sampling method. Then, the nam...
aerobic rice is as useful potential in reducing of water problem. comparison and investigation of genetic differences between iranian rice varieties and aerobic rice can be useful in identification of genomic regions influencing in drought tolerance. in the present study in addition to an examination of germination genotypes under osmotic stress, allelic diversity were evaluated in 53 genotype...
Background and Objectives: This study was undertaken to determine the relationship between food security and individual dietary diversity score (IDDS). Materials and Methods: This population-based cross-sectional study was conducted on 200 non-diabetic individuals aged ≥40 years, selected randomly from the Tehran Lipid and Glucose Study. Household food security was measured using a validated U...
Moroccan goats are characterized by the presence of different populations identified only based on their phenotypes. The objectives of this study were to assess the genetic differentiation of the Draa goat breed and to analyze its genetic structure and its relationships with other local populations using 12 microsatellite markers. The screening was done in South Eastern and Southern Morocco on ...
pistacia atlantica subsp. mutica is one of the most valuable forest tree species in iran that has been severely exploited for a long time. therefore, understanding the genetic diversity of different populations can be an important step towards the development and restoration of the habitat of this invaluable tree species. in this study, in order to study the genetic diversity, 10 populations in...
Extended Abstract Introduction and Objective: Sugar beet is one of the most important agricultural products in the world and most of the sugar consumed in our country is prepared from this plant. Plant breeding programs are based on creating variety and selection of quantitative and qualitative traits. Examining genetic diversity is the first step in breeding programs. Material and Methods: I...
Plant breeding researches is based on genetic diversity and evaluation of genetic diversity is also one of the most important steps in introduction of new cultivars. In this study, genetic diversity of 25 grass pea genotypes was studied based on randomized complete block design with three replicates in Khorramabad (Iran). Analysis of variance showed significant differences among genotypes for m...
Assessment of genetic diversity and individual relationships in rice (Oryza sativa) germplasm collections seems to be necessary for future rice breeding program. In order to understand genetic relationships of 30 rice genotypes, nine morphological traits, seven physicochemical properties and twelve RAPD primers were used for study of 30 rice genotypes. Among morphological traits, numbe...
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