How can drought-resistant crops be produced?
Genetic modification allows scientists to introduce specific traits into crops that improve their ability to survive water scarcity (Gupta. For example, researchers have identified and inserted genes responsible for drought resistance from certain plants into crops that are more vulnerable to water stress. Biotechnology has helped to increase crop productivity by introducing such qualities as disease resistance and increased drought tolerance to the crops. Now, research ers can select genes for disease resistance from other species and transfer them to important crops.Ag biotechnology enables the development of genetically modified (GM) crops that produce higher yields. By incorporating traits that enhance growth, resilience, and productivity, these crops can significantly boost food production, helping to meet the demands of a growing global population and ensuring food security.
What genetically modified crops are drought-resistant?
Drought tolerance is a complex quantitative polygenic trait controlled by a large number of genes and thus, it is difficult to understand the molecular and physiological mechanisms [1,12]. Until now, genetically-modified Glycine max (soybean) and Zea mays (maize) for drought tolerance have been developed and approved. At a particular developmental stage, plant drought resistance is associated with a series of events (such as stomatal movement, photosynthesis, cell osmotic regulation, synthesis of protective macromolecules and antioxidants, etc.
How drought-resistant crop plants can be produced?
The answer is: Drought-resistant crop plants can be produced through selective breeding and genetic modification. Selective breeding involves crossing plants with desirable drought-resistant traits over several generations to enhance this characteristic. 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.It is important to choose the right crop for the area due to the limited availability of water. Crops such as wheat, barley, oats, potatoes, and beans are all suitable for dryland farming. When dry farming, some plants may be given more space between them, which allows for better use of the available water.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.The correct answer is Sugarcane. Sugarcane crops needs maximum water per hectare. The crop water need or crop evapotranspiration consists of transpiration by the plant and evaporation from the soil and plant surface. The water need of a crop thus consists of transpiration plus evaporation.
What is the best crop to grow in a drought?
Sorghum: Similar to millet, sorghum is another hardy crop that can tolerate dry conditions and still produce a good yield. Green grams,Cowpeas,Pigeon peas,Beans: Known for their drought tolerance,they can grow in very arid conditions and also improve soil fertility by fixing nitrogen. Where other grains struggle, sorghum and millets can better cope with climate stresses. For instance, sorghum has a robust root system that allows it to extract moisture from the soil at deeper levels. Millets have a short growing period, enabling them to mature before the most intense heat and dry conditions.High – Grain sorghum is known for its excellent drought resistance due to its deep root system and ability to thrive in hot, dry conditions.
Which type of techniques are used in drought prone areas?
Drip irrigation systems have emerged as one of the most effective methods for conserving water in agriculture, particularly in drought-prone areas. This technique involves delivering water directly to the root zone of plants through a network of tubing and emitters. Watering more thoroughly, but less frequently helps get the water down to the deeper root tips. It is better to water the garden before drought really sets in, to keep the soil moisture levels even and avoid the soil being continuously dry.