ording to the water potential values shown in the image, which ones are wrong and why? W air (22 °C, 50% HR) -100 MPa V sheet -0.2 MPa V stem -0.01 MPa to -0.1 MPa soil -1 MPa to -0.51 MPa -4 MPa W root -0.1 MPa to
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- The high acidity of the soil means less capacity to bind positively charged ions. True or False?A farmer has noticed that his soybean plants produce more beans in some years than others. He claims to always apply the same amount of fertilizer to the plants but he suspects the difference in crop yield may have something to do with the amount of water the crops receive. The farmer has observed that the soybeans on his farm usually receive between 0 to 0.5 inches of water per day, but he is unsure of the optimal amount of water with which to irrigate. Question: state a research question that will directly address the farmer’s problem.Unless frozen, water is always in _______________, always ______________ within a plant from areas where it is abundant or under pressure to areas where it is rare or under tension.
- High buffering capacity means the soil is more fertile than soil with low buffering capacity. True or FalseScientists studied what caused leaf shedding in a drought deciduous (=shedding leaves during the dry season) subtropical species. They quantified the quantum yield (=efficiency) of the PSII complex and the leaf hydraulic conductance (=efficiency of leaf water movement) in leaves of that species during the wet to dry transition. Please describe the results in Figure Figure 1. Changes in leaf hydraulic conductance during the wet and dry season transition of a subtropical speciesSoil pH affects availability of nutrients for root absorption. The following statements are true except* a. Low pH results in an increase in Aluminum toxicity. b. Low pH results to unavailability of major nutrient elements. c. Toxic metals are more available in acidic soil. d. Low pH results in slow activity of soil-inhabiting microorganisms.
- High buffering capacity means the soil will retain more nutrients than soil with low buffering capacity. True or FalseIna terrestrial plant, water movement is as follows:a.from less negative water potential to a more negative water potential.b.from more negative water potential to a less negative water potential.c.from less positive water potential to a more positive water potential.d.from zero water potential to a more negative water potential.e.from zero water potential to a more positive water potential.High buffering capacity means the soil has more sand than soil with low buffering capacity. True or False
- Question: A farmer is growing grapes on a soil that has an available moisture capacity of 12%. The rooting depth of the crop is 4 ft. 1. Calculate the number of irrigation events and total amount of water required to irrigate the farmer’s 60-ac vineyard for two weeks considering the following: a. A maximum depletion level in the root zone of 15% b. Average ET of 0.2 in/day c. A system efficiency of 90%different type of potatoes have varying natural sugar concentrations. Explain how this may infuence the water potential of each type of potatoSoil pH influence the availability of soil nutrient elements TRUE OR FALSE