For selection of a new variety from a segregating population after hybridization the methods followed in self-pollinated crop are of three types: 1. Pedigree method, 2. Bulk method, 3. Back cross method. Method # 1. Pedigree Method: Individual plant progeny is selected from F2 and subsequent generations, and their progenies are tested. During this process […]
Top 3 Methods Used in Self Pollinated Crops | Breeding Methods
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Inbreeding Depression and Hybrid Vigour | Plants
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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 […]
4 Main Steps of Hybrid Seed Production | Plant Breeding
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The following points highlight the four main steps of hybrid seed production. The steps are: 1. Choice and Development of Seed Parent (A-Line) 2. Choice and Development of Restorer or Male Parent (R-Line) 3. Maintenance and Multiplication of Parental Seeds 4. Production and Improvement of F1 Hybrids. Step # 1. Choice and Development of Seed […]
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