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Physiological diseases and invasive plants

Course Description: Theoretical: - Introduction to Physiological Diseases - Effect of Temperature on the Growth of Different Plants - Effect of Radiation - Effect of Water and Soil Salinity - Effect of Drought and Water Deficiency - Fruit Cracking Process and its Causes - Essential Elements for Plant Growth and their Physiological Role - Effect of Deficiency and Excess of These Elements on Plant Growth - Genera and Families of Flowering Parasitic Plants on Agricultural Crops - Nature and Mechanics of Parasitism - Types of Parasitic Plants (e.g., Dodder, Broomrape, Witchweed, Dwarf Mistletoe, True Mistletoe) - Prevention Methods for Flowering Parasitic Plants - Some Methods for Diagnosing and Controlling These Diseases Practical: - Conducting experiments exposing seeds during germination, as well as mature plants, to unusual temperatures (both lower and higher than normal) and studying their effect on growth. - Exposing plants to irrigation with highly saline water and observing its effect on normal growth. - Exposing plants to high radiation and studying its effect on growth. - Growth experiments for plants in nutrient solutions lacking certain elements or with excess quantities of elements to understand the effect of deficiency and excess on plants. - Observing the effect of some parasitic plants on their economical hosts.
Credits: 2
Prerequisites: BIO 271
Objectives of the course :
  • Educating students on the meaning of physiological diseases and parasitic plants affecting economic plants.
  • Educating students on the economic importance of these diseases and the extent of the damage they cause.
  • Introducing students to some ways of diagnosing and treating these diseases.
Course outputs :
  • The most important physiological diseases affecting the growth of major crops in Saudi Arabia are:.
  • Identifying the most important parasitic plants on economically important plants in the Kingdom.
Additional information:

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