Effect Of Temperature On Plants Development.pptx

How change in temperature effect the growth of Plants.

1. Effect Of Temperature On Plants Development: ( AIMEN SAKHAWAT , SP22-BTY-025)

2. Effect Of Temperature On plants Development: Temperature is a physical quantity that quantitatively expresses the attribute of hotness or coldness. Plants modulate their growth according to their environmental conditions Effect Of Temperature On plants: In particular, temperature is a critical factor affecting plant growth. Each plant species has a suitable temperature range.. If it gets too hot or too cold, it can affect their growth. Some plants thrive in warmer temperatures, while others prefer cooler climates. Extreme temperatures can also cause stress to plants, leading to wilting or even death. It's important to provide the right temperature conditions for the specific plants you're growing.

3. Ranges: 1. Normal Temperature Range: The normal temperature range for plant growth can vary depending on the type of plant. Generally, most plants prefer temperatures between 65°F to 75°F (18°C to 24°C) during the day and slightly cooler temperatures at night. 2. High temperature: When temperatures get too high, it can have negative effects on plant growth and development. Heat Stress: High temperatures can cause a process called heat stress, which can lead to wilting, stunted growth, and even plant death.

4. Effect Of heat Stress On plants: Heat stress can also affect the plant's ability to photosynthesize, which is essential for producing energy. Dehydration: Additionally, high temperatures can increase water evaporation from the plant, leading to dehydration Some plants are more tolerant of heat than others, but prolonged exposure to high temperatures can still be damaging.

5. Prevention: It's important to provide shade, adequate watering, and proper ventilation to help plants cope with high temperatures. 3. Low temperature: When temperatures get too low, it can have a negative impact on plant growth and development. Symptoms: This can lead to stunted growth, discoloration of leaves, and even frost damage. In extreme cases, freezing temperatures can cause the plant's cells to burst, resulting in irreversible damage.

6. Enzymes: Optimum temperature: Enzymes have an optimal temperature range (usually between 20-40°C/68-104°F) where they are most active and efficient.- High temperature: Above the optimum range, enzymes can denature (unfold) and lose their activity, leading to reduced metabolic rates and impaired cellular function. Low temperature: Below the optimum range, enzymes can become less active or even inactive, slowing down metabolic processes.

7. Proteins: Structure: Temperature influences protein structure and folding, which affects their function and interactions.- Function: Proteins can denature or become inactive at high or low temperatures, disrupting cellular processes. Synthesis: Temperature can impact protein synthesis rates, with optimal temperatures varying for different proteins.

8. Temperature effects on enzymes and proteins can have cascading effects on various plant processes, including:- Metabolism Growth and development Photosynthesis Respiration Stress responses

9. ROS: High temperature (above 30°C/86°F): Increased ROS production due to enhanced electron transport chain activity Increased oxidative stress, potentially leading to cellular damage and stress responses Low temperature (below 20°C/68°F): Reduced ROS production due to decreased electron transport chain activity Potential for reduced oxidative stress, but also reduced metabolic activity

10. Photosynthesis: High temperature (above 30°C/86°F): Impaired photosynthesis due to: Denaturation of photosynthetic enzymes Disruption of electron transport chains Increased photorespiration (reducing CO2 fixation) Low temperature (below 20°C/68°F): Reduced photosynthesis due to: Slowed enzyme activity Reduced electron transport chain activity Potential for reduced CO2 fixation

11. Optimum temperature (20-30°C/68-86°F): Optimal photosynthesis and ROS balance Efficient CO2 fixation and electron transport chain activity Balanced oxidative stress and metabolic activity. Temperature fluctuations can significantly impact plant productivity, stress responses, and overall health by influencing ROS and photosynthesis.