Bulk inbreeding in the F2 and F3 generations is used by some breeders to inexpensively produce relatively uniform lines in which to begin pedigree selection. Pedigree selection should focus only on highly heritable, easily-scored traits.
In which generation would you start selection in the bulk method of breeding?
Bulk breeding refers to a selection procedure in which the segregating population of self-pollinated species is grown in bulk plot (From F1 to F5) with or without selection, a part of the bulk seed is used to grow the next generation and individual plant selection is practised in F6 or later generations.
What is pedigree selection method?
Pedigree selection is a breeding technique in which the breeder maintains the records of an ancestry of the cultivar which are called as Pedigree records. … It helps the breeder to improve specific individuals of the progeny line, revealing genes for desired traits.
What is pedigree selection in animal?
In selection. …and quality is known as pedigree selection. Progeny selection indicates choice of breeding stock on the basis of the performance or testing of their offspring or descendants. Family selection refers to mating of organisms from the same ancestral stock that are not directly related to each other.
What methods can be used to handling segregating generations in plant breeding?
The methods generally used for handling of segregation generation may be grouped into following three categories. a) Pedigree Method b) Bulk Method and c) Back Cross Method The objectives of all these methods are to 1. Develop pureline 2. Develop new varieties.
What is bulk population method?
This method is also known as “Mass Method” or the “The Population Method”. Bulk population breeding is a strategy of crop improvement in which the natural selection effect is solicited more directly in the early generations of the procedure by delaying stringent artificial selection until later generations.
Which method is the modification of bulk method?
9. Single seed descent method is the modification of bulk method of breeding.
How do you perform a pedigree method of breeding in self pollinated crops?
This can be accomplished by first crossing a plant of the superior variety to a plant of the donor variety, which carries the trait in question, and then mating the progeny back to a plant having the genotype of the superior parent. This process is called backcrossing.
What is pedigree dog breeding?
An AKC Pedigree is a printed or electronic document that displays the lineage of an AKC dog and important information about the ancestors in a dog’s family tree.
What is combined selection?
Combined selection is a technique used to identify individuals with better additive genetic value in a population under selection, using information from the individual itself and its relatives. … However, this can be overcome by defining a maximum number of individuals to be selected in the same family (Morais, 1992).
What is a segregating generation?
Introduction. • A segregating population can be defined as “the. genetically diverse progeny from crosses between. parents that differ for one more traits that are under. genetic control”
What is clonal selection in plant breeding?
Clonal selection is the method of selection of desirable clones from the mixed population of vegetatively propagated crops. It is one of the methods for improving the vegetatively propagated crops such as sugarcane, banana, potato, citrus, mango, etc.
How does pure selection differ from mass selection?
The main difference between mass selection and pure line selection is that a mass selection contains a mixture of pure lines, whereas a pure line selection contains a set of uniform characteristics. … Mass selection and pure line selection are two types of selective breeding methods used to improve crops.