Course Content
Learn Introductory plant breeding with Braimy- B.Sc agriculture
About Lesson

Pure lines show genetic variation after some time because of the following reasons.

  1. Mechanical Mixture: During cultivation, harvesting threshing and storage, other genotypes may get mixed up.
  2. Natural hybridization: Through pure lines are produced in self-pollinated crops, some amount of natural cross pollination occurs in them also can be avoided by isolation and rouging.
  3. Mutation: occur spontaneously in nature at random
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