HORTICULTURE SCIENCE
PLANT BIOLOGY
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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thin cuticle
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stomata only open during the day
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large leaves
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stomata are sunken in pits
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Detailed explanation-1: -Option C: In Xerophytes, as a part of special adaptation, sunken stomata are found, majorly on the lower surface of the leaf. Examples are Nerium, Pine, Acacia, etc. Therefore, this is the correct option.
Detailed explanation-2: -Sunken stomata ensure less water loss, thus reduces the rate of transpiration. Hence, these are characteristically found in xerophytes. In order to reduce transpiration, a maximum number of stomata in a dorsiventral leaf are present on the lower surface.
Detailed explanation-3: -Nerium, Pine, Acacia, and other plants with SUNKEN STOMATA. Plants that thrive in xerophytic environments have sunken stomata to lower the rate of transpiration. For example, Pinus, Dracaena, Yucca, and Opuntia.
Detailed explanation-4: -Xerophytes are the plants which are found in extreme dry conditions. They have very less number stomata present in sunken pits and therefore called sunken stomata.
Detailed explanation-5: -Updated On: 27-06-2022 Xerophytic plant of deserts, has a number of adaptation to reduce transpiration for water conservation e.g. stem is covered by thick cuticle and has high succulency while leaves are modified into spines.