BOTN 641 Environmental effects on plant growth and development

Soil as a substratum for plant growth - formation, texture, water holding capacity, incipient wilt, ion exchange, pH, permanent wilting percentage; role of water in plant growth  a n d development - special properties of water, plant-water relations, transport of ions, water and organic materials in plants, water economy of plants, moisture stress (flooding, drought), salinity; role of light - over views of effects of quality, quantity and duration of light on plant growth and development, photo - morphogenesis);  temp  as a factor for plant growth and development - dormancy, germination, flowering, leaf abscission, leaf flush etc;  effects of fire on soil nutrient status and plant growth, possible effects of fire on new leaf flush and stimulation of flowering;  effects of pollutants on plant growth and development - 502, No (acid rain), liquid effluents HNO3, dyes, H2 50, H2 ,503 etc, heavy metals - lead (Ph), Mercury (Hg), arsenic (As) etc;  effects of climate change - global warning on plant growth; dynamics of growth  in single cells and whole plants.