What is the meaning of drought tolerance?
Drought tolerance refers to a plant’s ability to survive during drought. Some plants are even “drought resistant”, meaning that they can survive long periods with no water at all (such as a cactus). Drought tolerant plants still need some water and are simply considered to be “low water” plants. Maize is one of the most important staple crops globally, but it is highly sensitive to water stress (Grime. However, through selective breeding and biotechnology, scientists have developed drought-tolerant maize varieties that can withstand dry conditions without significant yield losses.Almonds, figs and olives are the most drought tolerant. Apples, cherries, apricots, pears and plums are somewhat drought tolerant. Nectarines, peaches and citrus need adequate water to survive.Here some of the most water-efficient crops include: Cactus and succulents: These plants are well-adapted to arid conditions and can store water in their fleshy tissues, making them highly water-efficient. Quinoa: Quinoa is a drought-tolerant crop that requires less water compared to many other grains.
Why is it called a drought?
Traditionally, a drought is simply water scarcity, normally from a lack of rain. This is essentially the definition that we’ve inherited from 10,000 years of rain-fed agriculture. In a more nuanced form, it has also come to refer to water competition — too many straws in the drink. Drought tolerant plants are those which can handle long periods without water but generally need water to produce biomass or fruit.Drought is an extended period of unusually dry weather when there is not enough rain.
What crops are drought-tolerant?
Millets, including pearl millet and finger millet, are hardy crops commonly grown in arid regions of Africa and Asia. They are highly nutritious and can withstand extreme drought and heat conditions, making them a key component of food security in regions prone to water scarcity (Faulkner. Natural Region IV Although NR IV is considered unsuitable for dryland cropping, smallholder farmers grow drought-tolerant varieties of maize, sorghum, pearl millet (mhunga) and finger millet (rapoko).
Which plant can best survive in a hot, dry desert?
The golden barrel cactus is one of the most drought-tolerant plants that live out in the desert. It can grow in full sun, partial shade, or full shade. It produces yellow flowers in spring and grows up to 3 feet tall. This plant can live for up to 50 years! The most resilient desert trees include cacti and succulents, such as aloe vera, agave, and yucca; flowering shrubs, such as oleander and lantana; evergreen trees, like mesquite and Palo Verde; deciduous trees, such as the acacia tree; and fruit-bearing trees, like date palms.In addition to the plants listed above, cacti are some of the fastest growing desert plants. Cacti come in a variety of shapes and sizes and can be found in both arid and semi-arid climates. Some varieties even feature stunning blooms that make their addition to any garden worthwhile.