Loading...
Thesis
Browse
9 results
Search Results
ThesisItem Open Access “Genetic Variability and Character Association in Clusterbean [Cyamopsis (L) Taub.]”(Swami Keshwanand Rajasthan Agricultural University Bikaner (Raj.), 2019) PRAHLAD SINGH DHAKA; M.M. SharmaCluster bean [Cyamopsis tetragonoloba (L.)Taub] is an annual legume crop mostly grown under resource constrained conditions in arid and semi-arid regions (Kumar, 2005). Cluster bean is a deep rooted plant of Leguminosae (Fabaceae) family known for drought and high temperature tolerance (Kumar and Rodge, 2012). Vavilov (1951) has suggested that India as a geographic center of variability for guar, although it is not found to exist in wild state in this region. Gillet (1958) emphasized that Cyamopsis is distinct genus with tropical Africa as its probable center of origin. Hymowitz and Matlock (1963), on the other hand believed that African wild species C. senegalensis appears to be of African origin, yet it has been domesticated through centuries in the North Eastern region of Indo-Pakistan sub- continent. Cluster bean can be used for multiple purposes (vegetable, cattle feed/fodder or green manure). Its young pods are used as vegetables, which also known for cheap source of energy (16 Kcal), moisture (8 g), protein (3.2 g), fat (1.4 g), carbohydrate(10.8 g), Vitamin A (65.3 IU), Vitamin C (49 mg), calcium (57 mg) and iron (4.5 mg) for every 100 g of edible portion (Kumar and Singh, 2002). Leaves of guar are eaten to cure night blindness. Like other legumes guar has feature of formation of root nodules through nitrogen fixing bacteria and fixes about 30-40 kg N/ha.ThesisItem Open Access Genetic Divergence, Character Association and Heterosis among Pearl millet [Pennisetum glaucum (L.) R. Br.] Hybrids(SWAMI KESHWANAND RAJASTHAN AGRICULTURAL UNIVERSITY, BIKANER (RAJASTHAN) – 334006., 2020) RAVINA BENIWAL; Dr. P.C. GuptaPearl millet [Pennisetum glaucum (L.) R. Br.] belongs to family Poaceae, and sub family Panicoideae and genus Pennisetum, species glaucum. It is a cross pollinated crop and diploid (2n=14) in nature and believed to have originated in Africa (Vavilov, 1950). Emergence of stigmas before the anthesis facilitates cross pollination without emasculation. This facilitates helps in easy development of hybrids. The amount of up to 80 % out crossing takes place in pearl millet. It is a warm season crop. Inflorescence of bajra is a cylindrical spike like ear which consist of central rachis on which infinite no. of fascicles are packed. The fascicles contains one or more spikelets and a whorl of bristles. Spikelets occur in pairs, each spikelet bear two type of florets, one being bisexual and the other staminate. The height of pearl millet plant may range from 0.5 to 4 m and the grain can be nearly white, pale yellow, brown, grey & slate blue or purple. The grains are about 3 to 4 mm long, much larger than those of other millets, and the test weight ranges from 2.5 to 14 g with a mean of 8 g. Remarkable geographic diversity, male sterility and huge genetic variability are an embodiment unique features of pearl millet. The opportunity of cytoplasmic genetic male sterile lines in pearl millet made feasible to exploit heterosis commercially and hybrid seed production on broad scale. In pearl millet exploitation of heterosis on economic scale is regarded as one of the major boosts in the advancement of its productivity.ThesisItem Open Access In vitro Micropropagation of Endangered Plant Species - Commiphora wightii.(COLLEGE OF AGRICULTURE, BIKANER SWAMI KESHWANAND RAJASTHAN AGRICULTURAL UNIVERSITY BIKANER, 2022) RASHMI REKHA; Dr. A.K. SharmaPlants are usually propagated by forming seeds through sexual method of reproduction. That is, egg cells in the flowers are fertilized by pollen from the stamens of the plants to form zygote. Each of these sexual cells contains genetic material in the form of DNA. During sexual reproduction, DNA from both the parents is combined in new and unpredictable ways, creating variation and unique combination. This unpredictability in variation and gene combination creates a dilemma for plant breeders as it can take several years of hard work to breed a plant with desirable genotype and phenotype. It’s a general view that all plants grow from seeds. However, researchers have now developed several methods of growing exact replica of plants without seeds. They are now doing this through a method called “tissue culture”.ThesisItem Open Access Studies on Genetic Variability and Association Analysis in Indian Mustard (Brassica juncea (L.) Czern and coss)(COLLEGE OF AGRICULTURE, BIKANER SWAMI KESHWANAND RAJASTHAN AGRICULTURAL UNIVERSITY BIKANER, 2022) Satish Saini; Dr. Vijay prakashIndian mustard [Brassica juncea (L.) Czern and Coss] is a major rabi oilseed crop of the Indian subcontinent occupying more than 80 per cent of the total rapeseed-mustard cultivated area. The enhancement in production and productivity of the crop assumes significance, not only for farmer‟s view point but also to the edible oil industry and other vertical and horizontally linked enterprises and stakeholders. Indian vegetable oil economy is the fourth largest in the world after USA, China and Brazil. It accounts for 7.4 per cent of world‟s oilseed output; 6.1 per cent of oil meal production; 3.9 per cent oil meal export; 5.8 per cent vegetable oil production; 11.2 per cent oil import and 9.3 per cent of the world‟s edible oil consumption (Anonymous 2015).ThesisItem Open Access Combining Ability, Heterosis and Stability Analysis for Yield and its Contributing Traits for Heat Tolerance in Bread Wheat (Triticum aestivum L. em Thell)(COLLEGE OF AGRICULTURE, BIKANER-334006 SWAMI KESHWANAND RAJASTHAN AGRICULTURAL UNIVERSITY BIKANER (RAJ.), 2020) Sohan Lal Kajla; A.K. SharmaWheat is the second most important food / cereal crop of India after rice that belongs to the family Poaceae (formerly Gramineae). It contributes one-third of the total country‘s foodgrain production. This contribution has increased over years India witnessed the green revolution. Wheat is consumed in different forms such as bread, macaroni (pasta), spaghetti, biscuits, doughnut, noodles, pizza, etc. However, in India, it is mostly consumed in the form of unleavened pan backed bread called chapatti. Apart from that, straw of wheat is used for feeding the cattle and nowadays wheat is used for the production of ethanol and brewing of wheat beer.ThesisItem Open Access Genetic Architecture and Stability Analysis for Grain Yield and its Contributing characters in Barley [Hordeum vulgare (L.)](COLLEGE OF AGRICULTURE, BIKANER-334006 SWAMI KESHWANAND RAJASTHAN AGRICULTURAL UNIVERSITY BIKANER (RAJ.), 2021) Shravan Kumar Sharma; A.K. SharmaBarley (Hordeum vulgare L. 2n =2x = 14) is the worlds‟ fourth most important cereal crop after wheat, maize and rice. It is a most paramount cereal crop and considered as the first cereal domesticated for use by man as food and feed (Potla etal., 2013). It is one of the widely grown rabi cereals in the temperate and tropical regions of the world. It occupies fourth position in acreage and third position in terms of crop production. Vavilov 1926 considered North Africa & East Asia as Centre of Origin of Barley.ThesisItem Open Access Assessment of Combining Ability, Heterosis and Genetic Divergence in Pearl Millet [Pennisetum glaucum (L.) R. Br.](COLLEGE OF AGRICULTURE, BIKANER SWAMI KESHWANAND RAJASTHAN AGRICULTURAL UNIVERSITY BIKANER (RAJASTHAN)-334006, 2022) Moti Ram Natwaria; P. C. GuptaPearl millet [Pennisetum glaucum (L.) R. Br.] is popularly known as bulrush, cattail, or spiked millet in English, bajra in Hindi, dukhn in Arabic and as mhunga or mahango in parts of southern Africa, is an important drought tolerant coarse grain cereal crop. It is a major crop in arid and semi arid region of the world. It originated in Sahel zone of West Africa (Vavilov, 1950 and Murdock, 1959), which is known to be the crop‟s main center of diversity, from where it spread to India and other countries. Due to protogynous flowering type, it is highly cross- pollinated and pollinates through wind. Pearl millet is a diploid (2x=14) annual C 4 crop of family Poaceae (Gramineae), which is robust and quick growing rainy season cereal crop with large stem, leaves, heads, tall and vigour, with very high grain potential of 15-20 quintal per hectare. Pearl millet accounts for almost half of global millet production and contributes to food security in regions of Africa and Asia. As the grain has towering levels of protein content with balanced amino acids, CHO and fat which are prime in the human dietary and its nourishing value is considered to be akin to rice and wheat.ThesisItem Open Access Genetic Architecture of Seed Yield and Its Component Characters Using Line × Tester Analysis in Pearl Millet [Pennisetum glaucum (L.) R. Br.](COLLEGE OF AGRICULTURE, BIKANER SWAMI KESHWANAND RAJASTHAN AGRICULTURAL UNIVERSITY BIKANER (RAJASTHAN)-334006, 2021) KOMAL SHEKHAWAT; P.C. GuptaPearl millet [Pennisetum glaucum (L.) R. Br.] is a major warm- season cereal grown on 26 million ha in the arid and semi-arid tropical (SAT) regions of Asia (more than 10 million ha) and Africa (15-16 million ha). Pearl millet is a staple food for the majority of poor farmers and also an important fodder crop for livestock population in arid and semi-arid regions of India. It is an important boorish grain crop belonging to the family Poaceae (Gramineae) and give out as staple food for the millions of people flourishing under hunger. The crop is able to booming under adverse conditions and also set up an important fodder crop for livestock population in arid and semi-arid regions of India.ThesisItem Open Access Heterosis, Combining Ability And Phenotypic Stability In Pearl Millet [Pennisetum Glaucum (L.)R.Br. Emend Stuntz](Rajasthan Agricultural University;Bikaner, 2002) Sharma, Leela Dhar; Singhania, D.L.
