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In botany, drought tolerance is the ability by which a plant maintains its biomass production during arid or drought conditions. [ 1 ] [ 2 ] [ 3 ] Some plants are naturally adapted to dry conditions , surviving with protection mechanisms such as desiccation tolerance , detoxification , or repair of xylem embolism. [ 3 ]
Examples of xerophytes include cacti, pineapple and some gymnosperm plants. The morphology and physiology of xerophytes are adapted to conserve water during dry periods. Some species called resurrection plants can survive long periods of extreme dryness or desiccation of their tissues , during which their metabolic activity may effectively shut ...
Tepary beans are very drought tolerant. Germination requires wet soil, but plants will flourish in dry conditions once established. [10] Too much water inhibits bean production. They were cultivated by various methods, most commonly after an infrequent rain in the desert or after flood waters along a river or ephemeral stream had subsided.
Drought-tolerant trees (2 C, 237 P) X. Xerophiles (1 C, 13 P) Pages in category "Drought-tolerant plants" The following 200 pages are in this category, out of ...
Safflower is drought tolerant. [11] The tap root makes moisture from deep soil layers available. [9] Additionally, this tolerance can also be explained by the higher water use efficiency compared to other oil crops such as linseed and mustard. [12] Shortly before and during maximum flowering water requirements are the highest. [9]
For example, in hot weather they may overheat and suffer from temperature stress. They have no specific adaptations to overcome this, but, if there is enough water in the soil to allow this, they can increase their rate of transpiration by opening their stomata, thus meaning some heat is removed by the evaporating water.
Drought rhizogenesis is an adaptive root response to drought stress. New emerging roots are short, swollen, and hairless, capable of retaining turgor pressure and resistant to prolonged desiccation. Upon rewatering, they are capable of quickly forming an absorbing root surface and hair growth.
The difference in production costs for mung bean and soybean is due to post-harvest cleaning and/or transportation. Overall, mung bean is considered to have market potential for its drought tolerance, and it is a food crop and not a feed crop, which can help buffer the economic risk from variability in commodity crop prices for farmers. [44]