Laboratory Protocols & SOPs Library
- Experiments to determine the degree of water deficit in plants SummaryThe proline content in plants increases when they are dehydrated. The proline content in plants reflects the water situation in plants to a certain extent, and thus can be used as a reference physiological indicator of water deficiency in plants.Using artificial zeolite (Permutit) in the ...
- Experiments for the determination of photosynthetic intensity SummaryModified half-leaf method is part of the plant symmetrical leaf shade or remove placed in the dark, the other part is left in the light for photosynthesis, after a certain period of time, in these two parts of the corresponding part of the leaf to take the same area, respectively, drying ...
- Experiments for the determination of transpiration intensity by weighing and felling SummaryWhen a branch with leaves is inserted in a burette filled with water, the leaves are still constantly undergoing transpiration. The strength of transpiration varies with the type of plant and is influenced by external factors (temperature, humidity, light, etc.). The amount by which the ...
- Experiments for the determination of respiratory strength SummaryRespiration intensity is one of the most important indicators of plant life activity and is necessary to be measured in plant physiological research and production practice. In this experiment, we will practice the technique of determining the respiration intensity using the wide-mouth ...
- Experiments for the identification of plant resistance SummaryThe study of plant stress tolerance is important in scientific research and is closely related to production, so it is often necessary to measure the magnitude of stress tolerance. In this experiment, we practiced the technique of determining the change in cell permeability based on the ...
- Experiments on the extraction, isolation, properties and quantitative determination of chloroplast pigments SummaryChloroplast pigment is an important substance for plants to absorb sunlight energy for photosynthesis. This experiment is to learn the extraction and separation of chloroplast pigment in plants, to understand the important physical and chemical properties of chloroplast pigment, the ...
- An experiment to determine the osmotic potential of plant tissues SummaryPlant tissue into a series of increasing concentrations of sucrose or mannitol solution, after a certain period of time to achieve osmotic equilibrium, the cells in which the critical mass-wall separation of the solution osmotic potential is equal to the osmotic potential of the cytosol. ...
- Experiments on the fluorescence phenomenon of chlorophyll SummaryMatter has different energy states, some electrons in the matter absorbed the energy of light quanta, the matter from the original stable state of the energy level jump to a higher energy level. This stable state is called the ground state; the phenomenon of electrons jumping from the ...
- Protoplasm isoelectric point measurement experiment SummaryProtoplasm's main constituent -- protein for amphoteric compounds, it is in different pH medium, its dissociation is different: when the medium's pH value is more small, the dissociation of this substance tends to (1) type, and vice versa tends to (2) type, if in a certain pH value, the ...