Recurrent selection in plant breeding ppt

Inbred line means a relatively stable and pure breeding strain resulting from. PDF On Feb 1 2019 Jiban Shrestha and others published Introduction to Genetics and Plant Breeding Find read and cite all the research you need on ResearchGate.

He then multiplies the progeny to supply to farmers growers or planters.

Recurrent selection in plant breeding ppt. Recurrent selection is an efficient breeding method for increasing the frequency of superior genes in a population for various economic characters. Thus it is an important method of population improvement. Repeated intermating of heterozygous progeny provides greater opportunities for recombination to occur.

Thus this method helps in breaking repulsion phase linkages. Presentation on Plant Breeding Objective and Its Importance. The job of a plant breeder is to select plants with desired characters cross them and then identify the offspring that combine the attributes of both parents.

He then multiplies the progeny to supply to farmers growers or planters. The modern age of plant breeding began in the early part of the twentieth century after. Plant breeding ppt 1.

Development of inbred lines Submitted to. Kalpana Jaggi Jeetendra yadav Kamal timsina 2. Inbred line means a relatively stable and pure breeding strain resulting from.

Four or more successive generations of controlled self- pollination. Inbred lines are those sorts of breeding line that have been crossed with a very closely. Recurrent selection may be used to establish a broad genetic base in a breeding programme because of multiple opportunities for intermating the breeder may add new germplasm during the procedure when the genetic base of the population rapidly narrow after selection cycles.

Iv Progeny selection v Mutation breeding vi Clonal selection vii Transgenic breeding. What is plant introduction. Plant introduction refers to transposition of crop plants from the place of their cultivation to such areas where they were never grown earlier.

It is of two types viz. Direct introduction and indirect introduction. PDF On Feb 1 2019 Jiban Shrestha and others published Introduction to Genetics and Plant Breeding Find read and cite all the research you need on ResearchGate.

Organizational aspects of a plant breeding programme 197 organizational issues limit the freedom of the breeder in terms of breeding strategies for example the choice of testing the breeding material under a given level of inputs. The only advantage of following a commercial crop on station is that a commercial crop is. Reselection of generation after generation with inter breeding of selected plants to provide for genetic recombination.

The procedure of Recurrent selection was described by Jenkins in 1940. The term Recurrent selection was given by Hull in 1945. Recurrent selection for general combining ability.

Improvement called recurrent selection by plant breeders ÐA within-generation change the increase in trait mean among the selected individuals is translated into a between-generation change. Individuals are chosen either on the basis of Ðtheir phenotypic value mass selection Ðthe performance of their offspring progeny testing or relatives such as sib or family selection. Selection hybridization mutation etc that are used for genetic improvement of crop plants are referred to as plant breeding methods or plant breeding procedures or plant breeding techniques.

The choice of breeding methods mainly depends on the mode of pollination mode of reproduction gene action and breeding objective of crop species. Breeding strategies for recurrent selection of maize 1383 Breeding strategies for recurrent selection of maize José Marcelo Soriano Viana 1 1 Universidade Federal de Viçosa Dep. De Biologia Geral CEP 36570-000 Viçosa MG Brazil.

Jmsvianaufvbr AbstractThe objectives of this work were to analyze theoretical genetic gains of maize due to recurrent selection among full. Lec 01 Aims and objectives of Plant Breeding 1-5 Lec 02 Modes of Reproduction 6-10. Recurrent selection synthetics and composites 130-139 Lec 23 Hybrids 140-143 Lec 24 Clonal selection 144-148 Lec 25 Hybridization 149-152 Lec 26 Mutation Breeding 153-157 Lec 27 Procedure for Mutatuion breeding 158-162 Lec 28 Application of Mutatuion breeding 163-166 Lec 29 1 Ploidy breeding 167.

Recurrent selection is reselection generation after generation with intermating of selected plants to produce a population for the next cycle of the selection Figure 81. The idea of this method is to ensure the isolation of superior inbreds from the population subject to recurrent selection. The isolation of an outstanding inbred line depends on two factors.

I the proportion of superior. English video of describe about the general combining ability in the current selection of second type of recurrent selection I hope you like this video if yo. Introduction to Plant Breeding Master Gardener Training.

Start with a seed. Germplasm The greatest service which can be rendered to any country is to add a useful plant to its culture-Thomas Jefferson. Fairchild was responsible for bringing the cherry trees from Japan to DC.

Apple Wild apples came From Kazakhstan a species called Malus sieversii is the likely ancestor Apples were.