Polyploidy in Plant Breeding

Polyploidy in Plant Breeding

Polyploidy plays a pivotal role in plant breeding, especially in enhancing the genetic diversity and adaptability of crops. Polyploidy refers to the condition in which a plant has more than two complete sets of chromosomes, a state that naturally occurs due to irregularities in mitotic or meiotic divisions. These irregularities can lead to an increase … Read more

Distant Hybridization – Definition, Objectives, Barriers, Techniques, Limitations

Schematic diagram of the distant hybridization breeding system between AA and BB genome species concerned

What is Distant Hybridization (Wide hybridization)? Definition of Distant Hybridization Distant hybridization, or wide hybridization, refers to the crossing of individuals from different species or genera that are more distantly related than varieties within the same species, aiming to introduce novel traits and increase genetic diversity. History of Distant Hybridization Objectives of Distant Hybridization Barriers … Read more

Mutation Breeding – Mutations in Crop Improvement

Mutation Breeding - Mutations in Crop Improvement

Mutations play a significant role in crop improvement by introducing genetic variability, which can be harnessed to develop new and improved crop varieties. A mutation is defined as a sudden and heritable change in an organism’s characteristics. This definition implies that the change must be inheritable, though it does not specify the genetic mechanisms underlying … Read more

Backcross Method – Procedure, Applications, Advantages, Disadvantages

Backcross Method – Procedure, Applications, Advantages, Disadvantages

What is Backcross Method? Definition of Backcross Method The backcross method is a breeding technique where a hybrid or progeny is repeatedly crossed with one of its original parent plants to transfer specific traits from the donor parent to the recipient parent while preserving the recipient’s original characteristics. Requirements of a backcross programme To effectively … Read more

Bulk Method – Procedure, Applications, Advantages, Disadvantages

Generalized steps in breeding by bulk selection

What is Bulk Method? Definition of Bulk Method The bulk method, developed by Nilsson-Ehle in 1908, is a plant breeding technique where large quantities of plants from the F1 generation and subsequent generations are grown in bulk. Individual plants are only selected and evaluated after a prolonged bulking period, distinguishing it from methods like the … Read more

Pedigree Method – Procedure, Applications, Advantages, Disadvantages

Pedigree selection

What is Pedigree Method? Definition of Pedigree Method The pedigree method is a plant breeding technique where individual plants from segregating generations are selected and documented through detailed pedigree records. This method aims to develop genetically uniform pureline varieties by maintaining and selecting plants until progenies exhibit no further genetic variation. Procedure for the Pedigree … Read more

Pureline Selection – Procedure, Applications, Advantages, Disadvantages

Pureline Selection

What is Pureline Selection? Definition of Pureline Selection Pureline selection is a plant breeding method where individual plants are selected from a self-pollinated crop, and their progeny are evaluated. The best-performing progeny, derived from a single homozygous plant, is released as a pureline variety, ensuring genetic uniformity. History of Pureline Selection Characteristics of Pureline Selection … Read more

Mass Selection Method – Procedure, Applications, Merits, Demerits

Mass Selection Method

What is Mass Selection Method? Definition of Mass Selection Method Mass selection is a plant breeding method where a large number of plants with desirable traits are selected based on observable characteristics, and their seeds are pooled together to create a new variety. This method aims to improve the population’s uniformity for these traits while … Read more

Inbreeding Depression and Heterosis

Inbreeding Depression and Heterosis

What is Inbreeding depression? Definition of Inbreeding depression Inbreeding depression is the reduced biological fitness and health of offspring resulting from the mating of closely related individuals, which increases homozygosity and exposes deleterious recessive alleles. History of Inbreeding depression History of Inbreeding Depression Effects of Inbreeding Inbreeding, or the mating of closely related individuals, has … Read more

Hybridization For Self, Cross and Vegetative Propagation in plants – Procedure, advantages, and limitations.

Hybridization For self, Cross and Vegetative Propagation in plants – Procedure, advantages, and limitations.

In this article you will learn about Hybridization For Self, Cross and Vegetative Propagation in plants and. their Procedure, advantages, and limitations. What is Hybridization? Objectives of Hybridization Hybridization is a crucial technique in genetics and plant breeding aimed at enhancing and combining desirable traits from different individuals. Its objectives serve to improve agricultural efficiency … Read more

Adblocker detected! Please consider reading this notice.

We've detected that you are using AdBlock Plus or some other adblocking software which is preventing the page from fully loading.

We don't have any banner, Flash, animation, obnoxious sound, or popup ad. We do not implement these annoying types of ads!

We need money to operate the site, and almost all of it comes from our online advertising.

Please add biologynotesonline.com to your ad blocking whitelist or disable your adblocking software.

×