Everything you need to know about genetic variance ! Q. 1. What is genetic variance? Ans. The heritable portion of phenotypic (total) variance is called genetic variance. It is of three types, viz., additive, dominance and epistatic variances. Q. 2. What is additive variance? Ans. Average effects of genes on all segregating loci refer to additive variance. It is the [...]
Everything you need to know about molecular plant breeding ! Q. 1. What is molecular plant breeding? Ans. Molecular breeding is an important branch of plant breeding which is gaining increasing significance these days. Molecular breeding is of very recent origin. It developed In the 1980s with the evolution of DNA marker technologies. Molecular breeding is defined as a branch [...]
Everything you need to know about maintenance breeding ! Q.1. What is maintenance breeding? Ans. A branch/area of plant breeding which deals with principles and methods of breeder seed production is referred to as maintenance breeding. In other words, it deals with ways and means of maintaining genetic and physical purity-of released and notified varieties and parents of hybrid. It [...]