What is a heterotic group?
In our terminology, a heterotic group denotes a group of related or unrelat- ed. genotypes from the same or different popUlations, which display similar com- bining ability and heterotic response when crossed with genotypes from other genetically distinct germplasm groups.
What is Heterobeltiosis?
Heterobeltiosis is a form of heterosis where the hybrid is superior to its best parent. Understanding heterosis in banana breeding will contribute to selecting right breeding materials for further crossing, thus increasing banana breeding efficiency.
What is heterosis and its types?
Heterosis may be defined as the superiority of an F1, hybrid over both its parents in terms of yield or some other character. Heterosis, or hybrid vigour, describes the superior performance of heterozygous hybrid individuals compared with their homozygous parental inbred lines.
What is the meaning hybrid vigor?
heterosis
Hybrid vigor, or heterosis, is the increase in stature, biomass, and fertility that characterizes the progeny of crosses between diverse parents such that the F1 is superior to the better of the two parents. In plants, this is basically achieved by a greater proliferation of cells in some but not all tissues (2).
What is heterosis in biology?
Heterosis refers to the phenomenon that progeny of diverse varieties of a species or crosses between species exhibit greater biomass, speed of development, and fertility than both parents.
What is Isheterosis?
Heterosis, hybrid vigor, or outbreeding enhancement is the improved or increased function of any biological quality in a hybrid offspring. An offspring is heterotic if its traits are enhanced as a result of mixing the genetic contributions of its parents.
What is hybrid vigor quizlet?
Hybrid vigor or heterosis. production advantage that crossbred progeny have over the average of the contributing parental breeds.
What is heterosis example?
For example, hybrids between radish (Raphanus sativus) and cabbage (Brassica oleracea) exhibit extensive biomass heterosis (Karpechenko, 1927), as do hybrids between a wild tomato species, Solanum pennelli, and cultivated tomato, Solanum lycopersicum (Eshed and Zamir, 1995).
What is heterosis in agriculture?
What is the function of heterosis?
What is heterosis and its importance?
Abstract. Heterosis or hybrid vigor is a phenomenon where hybrid progeny have superior performance compared to their parental inbred lines. This is important in the use of F1 hybrid cultivars in many crops and vegetables.