Online Educational Platform based on AI
Heterosis (hetero- different; sis – condition) G.H. Shull was the first scientist to use the term heterosis in 1912. The superiority of the F1 hybrid in performance over its parents is called heterosis or hybrid vigour. Vigour refers to increase in growth, yield, greater adaptability of resistance to diseases, pest and drought. Vegetative propagation is […]
Hybridization Hybridization is the method of producing new crop varieties in which two or more plants of unlike genetically constitution is all crossed together that result in a progeny called hybrid. Hybridization offers improvement in crop and is the only effective means of combining together the desirable characters of two or more varieties or species. […]
Organic Agriculture Organic farming is an alternative agricultural system which originated ealginates in the seaweed thatarly in the twentieth century in reaction to rapidly changing farming practices. It is a production system that sustains the health of the soils, ecosystems and people. It relies on ecological processes, biodiversity and cycles adapted to local conditions rather […]
Portion Control: Portion control may be defined as the amount or size of a portion of food which is served to each customer. The purpose is to satisfy customer’s demand and to control food costs within set down specifications. If the portion is too small,then the customer feels cheated at not getting value for money […]
Geographic Information System GIS is a computer system for capturing, storing, checking and displaying data related to positions on Earth’s surface. Also to manipulate, analyse, manage and present spacial or geographic data. GPS is a satellite navigation system used to determine the ground position of an object. It is a constellation of approximately 30 well […]
Environmental Impact Assessment (EIA) Environmental Impact Assessment is an environmental management tool. It helps to regulate and recommend optimal use of natural resources with minimum impact on ecosystem and biotic communities. It is used to predict the environmental consequences of future proposed developmental projects (example: river projects, dams, highway projects) taking into account inter-related socio-economic, […]
Carbon capture and storage is a technology of capturing carbondioxide and injects it deep into the underground rocks to a depth of 1 km or more and it is an approach to mitigate global warming by capturing CO2 from large point sources such as industries and power plants and subsequently storing it instead of releasing […]
Endemic species are plants and animals that exist only in one geographic region. Species can be endemic to large or small areas of the earth. Some are endemic to a particular continent, some to a part of a continent and others to a single island. Any species found restricted to a specified geographical area is […]
Conservation India due to its topography, geology and climate patterns has diverse life forms. Now this huge diversity is under threat due to many environmental issues for this conservation becomes an important tool by which we can reduce many species getting lost from our native land. By employing conservation management strategies like germplasm conservation, in […]
Daily CA One Liners 26 December 2020 India’s Largest Hockey Stadium To Be Set Up At Rourkela , Odisha The Stadium Will Be Constructed In The Biju Patnaik University Of Technology Campus , Rourkela It Will Have A Sitting Capacity Of 20,000 People , Spread Over 15 Acres Of Land Ministry Of Finance & Corporate […]
History: The possibility of making cloth from the filament that the silkworm spins into a cocoon was first discovered in China about 2600 B.C. Legends tells us that a cocoon accidently dropped into a cup of tea that a Chinese Princess was having in her garden. The hot liquid softened and loosened the fiber, which […]
ANIMAL FIBERS: High resistance. Good Good Burns readily Natural protein fibers are obtained from animal sources like hair and other secretion, fibers include covering from such animals as sheep, mohair goat, cashmere goat and camel. Secretions are obtained from the larva, or worm stage, of the silkworm, which spins the cocoon from which silk fibers […]
a) Green Revolution By the middle of the 1960s the scenario with regard to food production was very grim. The country was incurring enormous expenditure on importing food. Land reforms had made no impact on agricultural production. The government therefore turned to technological alternatives to develop agriculture. High Yielding Variety (HYV) of seeds of wheat […]
Retting: The bundles of plants are then steeped in water so that the tissue or woody bark surrounding the hairlike flax fiber will decompose, thus loosening the gum that binds the fiber to the stem. The decomposition is called retting. Retting only loosens the woody bark. If flax is not retted enough, the removal of […]
According to the U.S. Department of Agriculture, a standardized recipe is one that “has been tried, adapted and retried several times for use by a given foodservice operation and has been found to produce the same good results and yield every time when the exact procedures are used with the same type of equipment and […]
Invasion of alien or introduced species disrupts ecosystem processes, threaten biodiversity, reduce native herbs, thus reducing the ecosystem services (benefits). During eradication of these species, the chemicals used increases greenhouse gases. Slowly they alter ecosystem, micro climate and nature of soil and make it unsuitable for native species and create human health problems like allergy, […]
Afforestation is planting of trees where there was no previous tree coverage and the conversion of non-forested lands into forests by planting suitable trees to retrieve the vegetation. Example: Slopes of dams afforested to reduce water runoff, erosion and siltation. It can also provide a range of environmental services including carbon sequestration, water retention. Afforestation […]
Deforestation is one of the major contributors to enhance green house effect and global warming. The conversion of forested area into a non-forested area is known as deforestation. Forests provide us many benefits including goods such as timber, paper, medicine and industrial products. The causes are • The conversion of forests into agricultural plantation and […]
Agro forestry Agroforestry is an integration of trees, crops and livestock on the same plot of land. The main objective is on the interaction among them . Example: intercropping of two or more crops between different species of trees and shrubs, which results in higher yielding and reducing the operation costs. This intentional combination of […]
Ozone layer is a region of Earth’s stratosphere that absorbs most of the Sun’s ultra violet radiation. The ozone layer is also called as the ozone shield and it acts as a protective shield, cutting the ultraviolet radiation emitted by the sun. Just above the atmosphere there are two layers namely troposphere (the lower layer) […]