chapter 6 review

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Dec 6, 2023

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A). Please complete the following True or False statements. If a statement is false, explain how to correct the false statement, or simply correct. i.e.: Ferns reproduce with large blue fruits. False, ferns reproduce using spores. 1. Hygroscopic water is the only water available to plants. False, it is not available to plants because it has very low water potential. 2. Plants lose water through transpiration. True 3. Water is a bipolar solvent. False, water is a polar molecule due to the unequal distribution of its electron density. 4. Soil moisture content can be determined by feeling the soil. True 5. Hydrophytes thrive in the desert. Flase, Hydrophytes are types of plants that grows into the water. B). Please answer the following Short Answer prompts / questions. 6. Name the four general types of irrigation.  Flood irrigation  Furow irrigation  Drip irrigation  Spray irrigation 7. List the four factors affecting evapotranspiration.  Radiation  Air temperature  Humidity  Wind speed 8. Name the two processes that move water through the plant. Translocation and transpiration 9. Name four vital functions water preforms in plants.  maintaining cell turgidity for structure and growth  transporting nutrients and organic compounds throughout the plant.  comprising much of the living protoplasm in the cells.

 serving as a raw material for various chemical processes, including photosynthesis; and, through transpiration, buffering the plant against wide temperature fluctuations. 10. List four ways to estimate the water content of soil.  Visual method  Gravimetric method  Mathematical method  Methods of using sensor 11. Water lost to drainage is called gravitational water. Water used by plants is called transpiration water, and hygroscopic water bonds to the soil particles. C). Please respond to the following Discussion prompts/questions. 12. Discuss the effects of too little or too much water on a crop. Drought and flooding both have the tendency to lower leaf size and area, which limits a plant's capacity to carry out photosynthesis. Plant height and corn stem thickness are decreased by stress. Tillering and development in sorghum are both delayed by moisture stress. Moisture stress in corn lowers potential yield. 13. Explain the concept of a water budget or scheduling irrigation. A water budget is a method for water management that is used to calculate how much water a landscape will need. It is possible to compute it for a single irrigation event, on a weekly, monthly, or even annual basis. 14. Compare the daily water use of two crops during their stages of growth, germination, seedling, vegetative growth, blooming, and harvest. The maximum crop water use for both crops occurs close to the end of vegetative growth and start of reproductive growth stage 15. Define evapotranspiration. Water moving from the ground surface to the atmosphere through evaporation and transpiration is collectively referred to as evapotranspiration. 16. Describe what happens when plants wilt.

Wilting is the loss of turgidity of leaves and other soft aerial parts causing drooping, folding, and rolling. Effectively, the plant is losing water faster than it is absorbing it. When this happens, the plant loses its turgidity and begins to wilt. Cited sources Chapter 6 “Water.” Efollett. (n.d.). Retrieved March 21, 2023, from https://www.bkstr.com/collofthedesertstore/product/intro-to-plant-science-708941-1 Erwan@tangibleplay.com. (2022, May 20). Why do plants wilt?: DIY science project ideas . Osmo Kids Learning. Retrieved March 22, 2023, from https://www.playosmo.com/kids- learning/why-do-plants-wilt/ L934 agricultural crop water use - Kansas State University . (n.d.). Retrieved March 22, 2023, from https://bookstore.ksre.ksu.edu/pubs/L934.pdf

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