OBJECTIVE LIFE SCIENCE
PLANT PHYSIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Water
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Air
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Soil
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None of the above
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Detailed explanation-1: -The root zone is the main terminal through which vegetation obtains its resources as well as a critical part of the upper vadose zone in terms of partitioning rain and irrigation water into evaporation, transpiration, runoff, and deep drainage.
Detailed explanation-2: -The maximum depth of available water in the root zone is 80 mm. Irrigation is required when the amount of available water is 55% of the maximum available water in the root zone.
Detailed explanation-3: -Introduction. Soil moisture in the root zone is a key controlling factor governing the magnitude and variability of water and energy fluxes through evapotranspiration in the soil–plant–atmosphere continuous system (Dumedah et al., 2015; Baldwin et al., 2017).