What is drought tolerance in plant?
Drought tolerance refers to the degree to which a plant is adapted to arid or drought conditions. The plants in dry environments are subjected to random droughts, and it is generally impossible for them to escape from such adverse conditions.
Why are drought tolerant plants important?
Less Water Because drought-tolerant plants have adapted to dryer climates and have lower water requirements, they naturally use less water. Although native plants are not necessarily drought tolerant, once established, they usually require minimal supplemental irrigation.
What is the difference between drought tolerance and drought resistance?
The terms drought tolerant and drought resistant are often used interchangeably—and incorrectly so. While drought-tolerant landscaping and plants are able to grow or thrive with minimal water or rainfall, drought-resistant plants can survive for long periods of time without water.
What are some characteristics that help plants tolerate drought?
Characteristics of “drought tolerance” Plants may have reduced leaf areas and bear small leaves or needles in the case of evergreens. Some drought-tolerant plants with large leaves have deep indentations (sinuses) between lobes in the leaves to reduce their leaf area.
Which is drought-tolerant crop Mcq?
1 “Sahbhagi Dhan” (IR74371-70-1-1) is a conventionally bred, drought-tolerant variety of which crop? Explanation: Drought-tolerant rice variety, Sahbhagi Dhan, which was the result of a twelve-year long collaboration between the International Rice Research Institute (IRRI) and other different Indian institutions.
What is drought-tolerant crop varieties?
Drought tolerant crops — like maize, cowpeas and rice — have been bred through conventional plant breeding techniques or biotechnology and continue to grow and produce even when rains fail.
What is drought tolerant crop varieties?
Which crop is most drought-tolerant?
Staple food crops like sorghum, cassava, sweet potato, pearl millet, cowpea and groundnut are naturally more drought-tolerant than maize. For centuries, farmers in parts of West Africa have grown maize alongside cassava and sweet potatoes.
How do plants survive in droughts?
To survive in drought conditions, plants need to decrease transpiration to limit their water loss. Some plants that live in dry conditions have evolved to have smaller leaves and therefore fewer stomata. Extreme examples are plants with leaves that resemble spiky thorns.
Which is most drought tolerant among pulses Mcq?
Pigeonpea (Arhar) All One Liner Questions
|12||Pigeonpea is sensitive to?||salinity (>8 pH).|
|13||Pigeonpea is mainly grown in?||tropical and sub-tropical climate.|
|14||Protein content of arhar is?||25%|
|15||which is most drought tolerant among pulses?||Red gram|
Who is the father of Agronomy?
Pietro de’Crescenzi is the father of agronomy. 1. It is defined as an agricultural science deals with principles and practices of crop production and management.
Which is drought tolerant crop Mcq?
What is drought tolerance in wheat?
In wheat, there are several genes which are responsible for drought stress tolerance and produce different types of enzymes and proteins for instance, late embryogenesis abundant (lea), responsive to abscisic acid (Rab), rubisco, helicase, proline, glutathione-S-transferase (GST), and carbohydrates during drought …
What is drought adaptation?
Increased drought can reduce the safe yield of reservoirs. To reduce this risk, increases in available storage can be made. Methods for accomplishing this may include raising a dam, practicing aquifer storage and recovery, removing accumulated sediment in reservoirs or lowering water intake elevation.
Why red gram is called pigeon pea?
In English they are commonly referred to as pigeon pea which originates from the historical utilization of the pulse as pigeon fodder in Barbados. The term Congo pea and Angola pea developed due to the presence of its cultivation in Africa and the association of its utilization with those of African descent.
Is barley drought-tolerant?
It has been documented that drought stress could severely reduce grain yield by 49–87% in barley (Samarah, 2005; Samarah et al., 2009). Breeding drought-tolerant barley cultivars seems the most effective and economic approach to minimize the adverse effects of drought stress on barley yield production.
Is wheat a drought-tolerant crop?
Wheat is an important cereal crop and a staple food source globally. Enhanced drought tolerance in wheat is critical for sustainable food production and global food security.
How is toor dal made?
Toor Dal cultivation requires light alkaline, deep and moist soil. Seeds should be sown in the months May-June. It will be good if you soak the seeds in Pseudomonas solution for some time before sowing. Manure can be applied as basal manure at the rate of 12KG per cent in well ploughed soil.