Plants Genetics and importance seminar ppt.pptx

Sure, I can help with that. Here's an outline for your presentation:

1. Introduction:
- Define genetic diversity in plants.
- Briefly explain why it's important.

2. Types of Genetic Diversity:
- Genetic variation within species.
- Genetic variation between species.

3. Factors Influencing Genetic Diversity:
- Natural selection.
- Mutation.
- Gene flow.
- Genetic drift.

4. Significance of Genetic Diversity:
- Adaptation to environmental changes.
- Resistance to pests and diseases.
- Improvement of crops through breeding.
- Conservation of endangered species.

5. Case Studies or Examples:
- Discuss specific examples where genetic diversity has played a crucial role in plant survival or human agriculture.

6. Conservation Efforts:
- Highlight the importance of conserving genetic diversity.
- Discuss strategies such as seed banks, botanical gardens, and conservation programs.

7. Conclusion:
- Summarize the importance of genetic diversity in plants and its implications for human well-being and environmental sustainability.

Remember to include visuals like graphs, charts, or images to illustrate your points effectively. Let me know if you need more information on any of these points!

1. Tasleem Bibi 2019 −ag− 2982 Dr . Farooq Ahmad M.Phil . botany 3 rd semester University of Agriculture Faisalabad

2. Morphological, Anatomical and Physiological adaptations in Halophytes

3. CONTENTS Introduction Classification Life cycle Morphological adaptations Anatomical adaptations Physiological adaptations Importance of halophytes conclusion

4. Halophytes Salinity. 25% in Pakistan Causes Removal of deep rooted vegetation Development of shallow water table Remobilization of salt stored in the soil profile Strategies adopt by the plants to salt tolerant

5. Morphological adaptations Habitat : tropical and subtropical regions Root: Pneumatophores negatively geotropic, stilt, root buttress, clarification Stem Stem succulence: Suaeda maritima Leaves thick, short, glassy mostly aphyllous, trichrome and bulliform cells

6. Fruits of halophytes light weight, air chambers Seed dispersal by wind or water , heteromorphic, brown and black Viviparous mode of seed germination e.g. Rhizophora sp. Aegiceras

7. Anatomical Adaptations in Halophytes Thick leaves Spongy parenchyma Less chlorophyll Xerophytic features Classification of halophytes Euhalophytes , Suaeda salsa Crinohalophytes , ( S partina) Glycohalophytes e.g. Artemisia santonica Voronkova et al. 2008

8. Leaves Aerenchyma Desmostachya bipinnata Salt glands Aleuropus lagopoides

9. Physiological Adaptations Release dissolved salts as exudes Succulence Compatible solutes Inorganic ions Ca High rate of transpiration Produce additional shallow roots for water absorption

10. REFERENCE Lucey, B. M., & Voronkova, S. (2008). Russian equity market linkages before and after the 1998 crisis: Evidence from stochastic and regime-switching cointegration tests.  Journal of International Money and Finance ,  27 (8), 1303-1324 .