Plant Breeding (Intraduction, Aims and objectives).pptx
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The document discusses plant breeding as an applied branch of botany that aims to improve agricultural crops through the enhancement of heredity and the development of better varieties. It highlights the evolution of plant breeding from an art, relying on traditional skills and judgment, to a science informed by genetics and technology. Key objectives of plant breeding included increased productivity, improved quality, and adaptability to agricultural practices.
Plant Breeding (Intraduction, Aims and objectives).pptx
- 1. Plant Breeding Dr. Ravindra D. Madhekar Assistant professor, Dept. Of Botany, S. B. E. S. College of Science, Aurangabad (Maharashtra) Introduction , Aims and objectives
- 2. Introduction • Applied branch of Botany and deals with the improvement of agricultural crops. • Contributed maximum to the increase in food production all over the world. • Improvement in the heredity of the crops and production of new crop varities which are far better than existing ones in all aspects • Consists of principals and methods for favourably changing the genetical constitution of plant to produce improved verities.
- 3. Nature of the Plant Breeding Plant breeding is the art, science and technology of changing the heredity of plants for human welfare. • Art In earlier days man depends on his skills and judgement in selecting better plants. He knew nothing about the inheritance of characters, role of environment in producing them and the basis of variation in various plant characters. His method of selection was designed without the understanding of principles of inheritance.
- 4. • Science : • As the knowledge of genetics and other related science progresses plant breeding become less art and more science. • •Especially, discovery of Mendel̕ s work in 1900 added a lot to the knowledge of science. • Technology • Product of all plant breeding activities, whether dependent on the art or science, is improved variety, hybrids, synthetics and composites. This product is utilized by farmers for commercial cultivation.
- 5. Relation with the other Plant Sciences • Genetics • Cytology • Biometry • Taxonomy • Plant Physiology • Plant Pathology and Entomology • Floral Morphology • Bacteriology
- 6. Aims and objectives • Higher productivity • Improved quality • Resistance • Change in maturity duration • Modification of agronomic characteristics • Winter hardiness • Short and stiff straw to prevent lodging • Response to heavy manuring
- 7. • Easier thrashability • Adaptability to wider regions • Suitability to machine harvesting in mechanised areas. • Elimination of toxic substances • Synchronous maturity • Determinate growth • Dormancy