What Are the Different Types of Drought-Resistant Crops?

Plant drought resistance refers to the adaptability or resistance of terrestrial plants to the drought environment. Because terrestrial plants are often threatened by drought, various drought resistance functions are formed during long-term adaptation and evolution. In terms of morphology, the leaf surface of the general terrestrial plant generally has a cuticle, the cells of the fence are closely arranged, and some leaves have fluff, and in some cases, the leaves are rolled into a tube shape when the leaves are dry. Physiological aspects can open and close the stomata to control transpiration. In terms of biochemistry, it actively increases the content of sugar and amino acids in the body to enhance water absorption, and actively inhibits the activity of degrading enzymes to maintain metabolic balance under drought. Plant drought resistance can be enhanced by induction. Farmers in northern China emphasize the role of "squat seedlings" (deeply increasing soil water loss, no irrigation, etc.) at the seedling stage in drylands, which is an induction measure to promote root stabbing and enhance drought resistance. Increased application of phosphorus, potassium, boron, and copper fertilizers can also improve the drought resistance of plants.