Learn about the comparison between inbreeding depression and hybrid vigour. 1. Increase in Homozygosity vs. Development of Heterozygosity: Due to inbreeding each line becomes increasingly homozygous, as a consequence the variation within a line decrease rapidly. After 7-8 generations of selfing, the lines becomes almost uniform (99% homozygosity) which are called inbred lines. Hybridization always favours hetrozysity; the species which [...]
In this article we will discuss about the cultivation and improvement of tea. Tea: Tea, Camellia sinensis, is one of the most popular caffeine containing beverage, obtained from tender leaves of the tea plants after processing. Tea contains 13-18% tannin, 2-5% theine and a volatile oil. There are two main varieties, e.g., bohea (Chinese tea) and assamica (Indian, i.e., Assam [...]
In this article we will discuss about the basic laboratory requirements for plant tissue culture. Laboratory Requirements: 'Plant tissue culture' or in vitro cultivation of plant parts needs some basic requirements: (a) Cultivation should be done under aseptic conditions. (b) The isolated plant part should get an appropriate environment which will help to divide the cell and to get an [...]