INTRODUCTION TO CROP /PLANT PHYSIOLOGY AND IT'S IMPORTANCE IN AGRICULTURE Bsc Agri 2nd sem Topic 1st

INTRODUCTION TO CROP /PLANT PHYSIOLOGY AND IT'S IMPORTANCE IN AGRICULTURE Bsc Agri 2nd Semester Topic 1st by ‪@FarmersLoveAgriculture‬ veer vikas sir
CPHYS-121
Fundamentals of Crop Physiology
2(1+1)
Theory
Introduction to crop physiology and its importance in Agriculture. Plant cell: an Overview, Diffusion and osmosis, Absorption of water, transpiration and Stomatal Physiology. Mineral nutrition of Plants; functions and deficiency symptoms of nutrients and nutrient uptake mechanisms. Photosynthesis; Light reaction and Dark reactions:C3, C4 and CAM plants. Respiration; Glycolysis, TCA cycle and electron transport chain. Physiology of flowering. Plant growth regulators; physiological roles and agricultural uses. Physiological aspects of growth and development of major crops. Growth analysis. Role of Physiological growth parameters in crop productivity.
Practical
Preparation of solutions and buffers. Demonstration of the process of osmosis, plasmolysis, root pressure in plants. Measurement of transpiration rate using Ganongs potometer. Estimation of relative water content in plants. Visual symptoms of nutrient deficiency in plants. To study structure and distribution of stomata in leaf. Separation of photosynthetic pigments through paper chromatography. To demonstrate that O2 is evolved during photosynthesis and light and CO2 is essential for photosynthesis using Molls half leaf experiment. Measurement of photosynthetic CO2 assimilation by Infra Red Gas Analyzer (IRGA. Demonstration of anaerobic respiration. Measurement of respiration quotient, plant growth by Arc auxanometer and growth analysis parameters.
Introduction to crop physiology and its importance in agriculture
Crop physiology is concerned with the processes and functions of the crops at cellular, sub-cellular and whole plant levels in response to environmental variables and growth.
In short, physiology is the study of functional aspects of crop plants.
Crop physiology is important in agriculture because:
1. It studies the entire plant and its communities.
2. They deal with a plant in terms of knowledge from the different field such as soil science, plant physiology, botany etc.
3. One of the most important advantage in crop physiology was the elucidation of the subtle processes that regulate energy metabolism in green plants. Photosynthesis and respiration were found to be two related aspects of the same function-the metabolism of nutrients and energy.
4. It aims to "increase the yield" of the plant economically.
Crop yield is controlled by the interaction between the genetic potentialities of crop plants and the environment in which they grow. Variations in the genotype and in the environment, including weather and cultural practices, act through physiological processes to control growth. Thus the physiological processes of plants are the machinery through which both the genetic potentialities and the environment operate to produce the quantity and quality of growth or phenotype which we term yield.
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Introduction of Crop physiology
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