Plant Breeding (Intraduction, Aims and objectives).pptx

This presentation explains the basic concepts of plant breeding, its aims and objectives.

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 Mendel̕s 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 P lant 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