The heterosis and inheritance coefficient research results among the first and the second generation hybrids which have been got from the linear and synthetic varieties of winter soft crossing are discussed in this article
The detailed morphological description of interspecific tomato F1 hybrids is represented in the article. The positive heterosis in regard to sire component was noticed in accordance with the following characteristics: fruit size, leaf size and stem length. It was established that the inclusion of tomato of Lycopersicon cheesmanii typicus genus into selection enables the obtaining of new species at the expense of increasing the range of genetic variability
Great success in increasing rice production, and it has more than doubled, has occurred worldwide thanks to the use of modern high-yielding rice varieties developed by conventional breeding methods. In order to develop a new variety, it is important for the breeder to study the genetic and breeding value of various cultural and wild species - carriers of economically valuable traits, the identification of genes and groups of genes controlling the economically valuable traits, to study the patterns of their inheritance, to establish patterns of interaction between the genotype and the environment, explore the genetic and physiological-biochemical basis of the phenomenon of heterosis, improve methods of intraspecific, complex, stepwise and distant hybridization, to study a phenomenon of a sharp increase in the quantitative characteristics of crop plants, a more powerful growth of hybrids of the first generation compared with the parent individuals. Scientists of the past centuries, such as A.F. Wigman, W.Noden, V.Foke, and many others have been studying the phenomenon of hybrid power, which was first named “heterosis” in 1908 by J. Schell. At present, heterosis is understood as the phenomenon when hybrids of the first generation exceed their parental forms in terms of their biological values and economically valuable traits. The magnitude of heterosis of the first generation hybrids is determined by several methods in terms of percentages to the paternal, to the maternal form, to the average of both parents, and to a better or regionalized standard. By the magnitude of the dominance coefficient, researchers often determine the inheritance of a trait
This article reviews hybrid analysis data on monogenic and digenic patterns of quantitative traits: plant height, panicle length and total number of spikelets
In this work we examine the type of inheritance, number and force of the genes participating in determination of a quantitative attributes of length, width of grain, weight of 1000 grains at hybrids from crossing of the Iranian variety of rice Ambarbu with varieties of Virazh and Boyarin. It is established, that distinctions between samples of length of grain made 3 pairs of genes, of width of grain – 1 pair genes, of weight of 1000 grains – 2-3 pairs genes
The results of the analysis of inheritance of a sign «weight of 1000 seeds» in F1 winter barley are resulted in this article. Examples of various types of inheritance at double-row, correct six-row and wrong (tetrahedral) hybrids are resulted
Biometrical analysis of parents’ forms and hybrids F1 is accomplished; inheritance types of 4-seed beans and 1000 seeds’ mass are established. A degree of domination and value of heterosis and GСA and SCA is determined as well
In the article, the results of the genetic analysis of inhe-ritance of hybrids F2 are presented. Degree and fre-quency of transgression are calculated
The results of the analysis of yield structure elements, quality traits and biochemical indices of promising lines, varieties and varietal samples are presented in the article. Eight samples with high protein and amylose content have been selected in the course of the work
This scientific article is devoted to the issues related to the initiation of a criminal case and the circumstances, subject to establishment of cases of bribery