Course Content
Qualitative and quantitative characters (qualitative and quantitative characters in crops and their inheritance)
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Biometrical techniques in plant breeding (assessment of variability, aids to selection, choice of parents, crossing techniques, genotype-by- environment interactions)
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Selection in self-pollinated crops (progeny test, pureline theory, origin of variation, genetic advance, genetic gain)
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Hybridization techniques and its consequences (objectives, types, program, procedures, consequences)
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Genetic composition of cross-pollinated populations (Hardy-Weinberg law, equilibrium, mating systems)
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Breeding methods in self-pollinated crops (Mass, Pure line, Pedigree, Bulk, Backcross, etc)
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Learn Introductory Plant Breeding with Rahul
About Lesson

History of plant breeding

  • 700 BC – Babylonians and Assyrians pollinated date palm artificially
  • 17th century – several varieties of heading lettuce were developed in France
  • 1717 – Thomas Fair Child – produced the first artificial hybrid, popularly known as Fair Child’s mule, by using carnation with sweet William
  • 1727 – The first plant breeding company was established in France by the vilmorins.
  • 1760-1766 – Joseph koelreuter, a German, made extensive crosses in tobacco.
  • 1759-1835 – Knight was perhaps the first man to use artificial hybridization to develop several new fruit varieties.
  • Le couteur and Shireff used individual plant selections and progeny test to develop some useful cereal varieties
  • 1873 – the work of Patrick Shireff was first published.
  • He concluded that only the variation heritable nature responded to selections, and that their variation arose through ‘natural sports’ (= mutation) and by ‘natural hybridization’ (= recombination during meiosis in the hybrids so produced).
  • 1856 – Vilmorin developed the progeny test and used this method successfully in the improvement of sugar beets.
  • 1900 – Nilson-Ehle, his associates developed the individual plant selection method in Sweden.
  • 1903 – Johannsen proposed the pure line theory that provided the genetic basis for individual plant selection.
  • The science of genetics began with the rediscovery of Gregor Johan Mendel’s paper in 1900 by Hugo de veris, Tshermark and Correns which was originally published in 1866.
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