Breeding Method For Self Pollinated Crops

Cross-pollination where pollen from one plant can only fertilize a different plant. The degree of cross pollination is less than 5.

As The Title Implies This Book Is Intended To Provide An Introductory Course In Plant Breeding For Undergraduate Students Plant Breeding Life Science This Book

Mass selection Bulk selection Pedigree selection Single seed descent Backcross breeding for introgression of recessive or dominant gene 1 httpswwwnature.

Breeding method for self pollinated crops. Popular methods of breeding self pollinated crops are. There is repeated self pollination of selected plants till superior homozygous genotypes are obtained. Breeding Methods in Self Pollinated Crops.

The best one is used as new variety. The breeding method used depends on the type of cultivar to be produced. Breeding methods of self pollinated crops A species breeding system.

The deliberate mixture of isolines closely related lines or unrelated. The concept of pure line was proposed by Danish botanist Johan seen in 1903 on the basis of his studies on Princess beans Phaseolus vulgaris which is highly self pollinated species. F2 parent can be reselected to further exploit its within family variation Lots of genetic information can be gathered Selection is based on progeny tests.

Self-fertilization where pollen from a plant will fertilise reproductive cells or ovules of the same plant. Transfer of pollen from an anther to a stigma within the same flower or to a stigma of another flower on the same plant. Individual plant progeny is selected from F 2 and subsequent generations and their progenies are tested.

Breeding methods in self pollinated crops Various procedures like introduction selection hybridization mutations are used for genetic improvement of crop plants. Breeding Self Pollinated Crops Self-pollination. There are basic types of cultivars viz inbred pure lines open-pollinated populations hybrids and clones.

There are basic types of cultivars viz inbred pure lines open-pollinated populations hybrids and clones. Breeding method in self pollinated crop Breeding method in cross pollinated crop Breeding Population Breeding method in self and cross pollinated crop. Runners from strawberry plants where the new plant is genetically.

I Pedigree Method ii Bulk Method iii Back Cross Method The objectives. Johansons Pure Line Theory 1903. Method of Plant Breeding in Self Pollinated Plants Pedigree Methods Mass selection and pure line selection cannot be applied to segregating population.

The method is generally used for handling segregation generation may be grouped into three categories. Plant breeders use different methods depending on the mode of reproduction of crops which include. The self-pollinated progeny of homozygous plant constitutes a pure line.

For selection of a new variety from a segregating population after hybridization the methods followed in self-pollinated crop are of three types. At the beginning of each breeding programme the breeder should decide on the type of cultivar to breed for release to farmers. And 4 development of hybrid varieties.

The breeding method used depends on the type of cultivar to be produced. Method of Plant Breeding in Self Pollinated Plants Pure Line Selection. Mass selection is a method of breeding in which individual plants are selected on the basis of phenotype from a mixed population their seeds are bulked and used to grow the next generation.

The challenge of the plant breeder is to develop better varieties. Breeding in self pollinated crops- pedigree breeding method Advantages of pedigree breeding Each pureline can be traced back to its ancestral F2 plant. In other words formation of a seed by union of the male and the female gametes from the same plant also refered as autogamy.

I Pedigree Method ii Bulk Method iii Back Cross Method The objectives. Share With Your Agri Friends. This procedure sometimes referred to as phenotypic selection.

During this process the record of parents as well as off-springs is kept for which it is known as pedigree method. Pureline refers to the homogenous progeny of a self pollinated homozygous plant. All the plants in pure line have identical genotype.

G F2 F3 etc. Has been commonly defined as a qualitative trait1. The choice of breeding method mainly depends upon four main factors.

In mass selection seeds are collected from usually a few dozen to a few hundred desirable appearing individuals in a population and the next generation is sown from the stock of mixed seed. G F2 F3 etc. The method is generally used for handling segregation generation may be grouped into three categories.

Mass selection is a simplest common and oldest method of crop improvement in which large number of plants of similar phenotype are selected and their seeds are harvested and mixed together to constitute the new variety. Method of Plant Breeding in Self Pollinated Plants Pedigree Methods Mass selection and pure line selection cannot be applied to segregating population. The breeding methods that have proved successful with self-pollinated species are.

In this chapter we are concerned with the methods by which new varieties of self-pollinated crop plants originate. Method of Plant Breeding in Self Pollinated Plants Mass Selection. Pedigree breeding is a method of genetic improvement of self-pollinated species in which superior genotypes are selected from segregating generations and proper records of the ancestry of selected plants are maintained in each generation.

3 hybridization with the segregating generations handled by the pedigree method the bulk method or by the backcross method.

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