نتایج جستجو برای: genetic characteristics
تعداد نتایج: 1247915 فیلتر نتایج به سال:
Recognition of genetic reserves and desirable genes is the basis of breeding programs. So far, in Iran, due to the lack of recognition of genetic resources, a considerable breeding program has not been done on native plants. The study of the genetic diversity of violets as a native plant with ornamental and medicinal uses is the great importance in advancing the breeding goals of this plant. So...
This is a descriptive survey with goal of identifying the reasons of couples visiting the genetic centers in Tehrann (1994). The sample consisted of 150 couples randomly selected, in one of the mentioned Tehran genetic clinics. The tool was two part questionnaire. The first part provided information of personal characteristics of the subjects (18 questions) and the second including 20 que...
Sexual selection through female mate choice for genetic characteristics has been suggested to be an important evolutionary force maintaining genetic variation in animal populations. However, the genetic targets of female mate choice are not clearly identified and whether female mate choice is based on neutral genetic characteristics or on particular functional loci remains an open question. Her...
background and objectives: rice (oryza sativa) is one of the most important cereal crops and is the staple food source for over fifty percent of the world’s population. the population of rice-consuming countries is multiplying daily, and it is estimated that rice production must be increased in the coming years and an incensement in production will be the main goal of plant breeders. this has t...
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