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2003 - 200912010 - 20204
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Author: Seema × Start date: 2003 × Thesis Type: M.Sc ×
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Now showing 1 - 5 of 5
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    ThesisItemOpen Access
    Evaluation of losses due to Suidasia nesbitti (Acari: Acaridae) in pearl millet and its management
    (CCSHAU,HiSAR, 2020-06) Seema; Gulati, Rachna
    The average population of S. nesbitti increased significantly at each observation period. Pearl millet flour was found significantly better as more number of mites (364.14 mites/ 5g flour) were recorded than on pearl millet grains (277.28 mites/ 5g grain). The weight was 5.000 g at 0 day which decreased significantly to 4.875, 4.710 g in grain and flour at 180 days of infestation. Biochemical estimation of infested grains and flour revealed decrease in total soluble sugars (22.100, 21.067 mg/ g), non-reducing sugar (13.000, 12.36 mg/ g), starch (545.100, 468.100mg/g) and protein (106.133, 87.733mg/g) after 180 days of infestation, respectively as compared to 23.100, 14.440, 597 and 113.250 at 0 days. A significant negative correlation of S. nesbitti population with weight loss, total soluble sugar content, non-reducing sugars, starch, protein in grain (r= - 0.993, - 0.971, -0.991, - 0.790, -0.966) and flour (r= - 0.983, -0.999, -0.983, -0.991, -0.964) was obtained. Reducing sugars showed a significant increase from 8.660 to 9.100 mg/ g in pearl millet grains. Germination in grains decreased from 90 to 7.14 per cent after 120 days of infestation. In the last two durations (150 and 180 days), no seed was germinated in seeds having 518.66 and 662 mite population. Aqueous extracts of Aonla (Phyllanthus emblica) fruits, lemon (Citrus sinensis) and orange (Citrus limon) peels were evaluated under in vitro conditions against S. nesbitti. With higher concentrations of 4 and 8 per cent of both the botanicals, Aonla fruit and lemon peel provided 100 per cent protection against S. nesbitti except lemon peel at 4 per cent (81.65% protection). Aqueous extract of orange peel provided 100 per cent protection against S. nesbitti at 0.5, 1, 2, 4 and 8 per cent concentration at 1day after treatment. Among the botanicals, orange peel extract is more toxic to S. nesbitti than the Aonla fruit and lemon peel extract.
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    ThesisItemOpen Access
    Acceptability and nutritional evaluation of value added food products developed from Spirulina-wheat-bengal gram composite flour
    (CCSHAU, 2019) Seema; Jood, Sudesh
    The present study was conducted to study the “Acceptability and nutritional evalutaton of value added food products developed from Spirulina-wheat-bengal gram composite flour. Four types of composite flours were formulated by using wheat flour, bengal gram flour and Spirulina powder (2, 4, 6 and 8% levels). Control-I (100 wheat flour), control -II (100% bengal gram flour), Type-I composite flour (49:49:2), Type-II composite flour (48:48:4), Type-III composite flour (47:47:6) and Type-IV composite flour (46:46:8), respectively. All the formulated composite flour samples were estimated for their physico-chemical properties. Water absorption capacity, oil absorption capacity, swelling powder, bulk density and least gelation capacity of control flours increased on increasing the levels of Spirulina powder in wheat-bengal gram flour blends while solubility and flour dispersablility were found to be decreased significantly in all types of composite flours. Maximum was in Type-IV composite flour and minimum was in Type-I composite flour. Crude protein, crude fat, crude fibre and ash content in Type-IV composite flour were found significantly higher followed by Type-III, Type-II and Type-I composite flour containing Spirulina powder at 2, 4, 6 and 8 per cent level. Similarly, Type-IV composite flour had higher amount of total, soluble and insoluble dietary fibre content. Phytic acid content of control flour was found to be decreased in all four types of composite flour whereas antioxidant was found to be significantly improved in all four types of composite flour on addition of Spirulina powder. Maximum improvement was observed in Type-IV composite flour and minimum in Type-I composite flour. Various products like biscuits, Matthi, Matar and sev were developed by using four types of composite flours containing Spirulina (2, 4, 6 and 8% levels) and evaluated for their sensory attributes. Overall acceptability scores of all products made from Type-I, Type-II, Type-III composite flours containing Spirulina powder (2, 4 and 6% levels) were found acceptable by the panelists. While Type-IV composite flour made products were not found acceptable by the panelistis. With regard to nutritional quality, all products made Type-III composite flour contained significantly higher amount of crude protein, crude fibre, ash, total sugar, reducing sugar, total dietry fibre and soluble dietry fibre contents than their respective control samples. In vitro availability of Ca, Fe and Zn and in vitro digestibility of protein and starch were also found improved in the products made from Type-III composite flours followed by Type-II and Type-I composite flour made products as well as their respective control products. Significant reduction was found in phytic acid content of all types of products. Storage studies indicated that biscuits, matar and sev for 60 days and matthi for 30 days could be stored without any significant change in their sensory attributes. Fat acidity in all the products made from three types of composite flour were found to be increased in stored products on increasing the storage period but did not exceed the acceptable limit till their consumer acceptability. Spirulina powder supplemented products may be recommended for prevention of malnutrition, anemia and vitamin-A deficiency.
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    ThesisItemOpen Access
    Effect of phosphorus and potassium application on quality of sorghum (Sorghum bicolor (L.) Moench)
    (CCSHAU, 2019) Seema; Singal, H.R.
    Sorghum (Sorghum bicolor (L.) Moench) locally known as Jawar or Chari is an important kharif season crop which is grown for both fodder and grains. Fertilizers constitute an integral part of improved crop production technology. Application of optimum quantity of phosphorus and potassium is important in improving quality and yield of forage sorghum. The present investigation was carried out to study the effect of phosphorus and potassium application on quality parameters. Sorghum variety HJ 541 was grown in field and different doses of phosphorus (15, 30. 45, 60 and 90 kg P2O5/ha) and potassium (20, 30, 40, 50 and 60 kg K2O/ha) were given. Plant/leaf samples were collected at 30 DAS, 50 DAS and 90 DAS. Biochemical parameters namely HCN, IVDMD, crude protein, nitrogen content, phosphorus content, potassium content, iron content, NDF, ADF, total soluble solids, total soluble sugars, reducing and non- reducing sugars, morpho- physiological parameters namely fresh weight, dry weight, stem girth, internode length and number of leaves and cell wall components namely cellulose, hemicelluloses, lignin and pectin were studied. It was observed that HCN content was less than permissible value (200 μg/g at fresh weight) with the application of phosphorus and potassium. IVDMD, crude protein, nitrogen content, phosphorus content, potassium content, iron content, total soluble solids, total soluble sugars, reducing and non- reducing sugars increased with the application of phosphorus and potassium. Maximum fresh and dry weight, stem girth internode length and number of leaves increased with the application of phosphorus and potassium. NDF, ADF, cellulose, hemicelluloses, lignin and pectin decreased with the application of phosphorus and potassium. The results obtained revealed that the quality of forage sorghum improved with the application of phosphorus and potassium.
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    ThesisItemOpen Access
    Evaluation of spoilt wheat grains for ethanol production
    (College of Agriculture Chaudhary Charan Singh Haryana Agricultural University Hisar, 2003) Seema; Dhamija, S.S
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    ThesisItemOpen Access
    Hydraulic properties of soils as influenced by texture, organic matter and soluble salts
    (CCSHAU, 2017) Seema; Dahiya, Rita
    Hydraulic properties of soils plays a significant role in adoption of appropriate water management practices capable of enhancing input use efficiency of soils of arid and semi arid regions. Keeping in view the importance of the hydraulic properties, study was carried out by collecting the soil samples from 0-15 and 15-30 cm depths at farmers’ field in different villages spread over nine districts of the State during 2016-17. The experimental soils were found to belong to six textural classes i.e., sand, loamy sand, sandy loam, loam, silty loam and sandy clay loam; on the basis of mechanical analysis of the samples. The soils were analyzed for organic carbon (OC) content, electrical conductivity, pH, saturated hydraulic conductivity (Ksat), sodium adsorption ratio, soil moisture characteristics, moisture at filed capacity and permanent wilting point, aggregate size analysis and aggregate stability index using standard methods. The pH1:2, EC1:2, OC of soils was found ranging from 6.69-8.08, 0.11-3.68 dS/m and 0.14 – 0.72%, respectively for both the soil depths. The Ksat of the soils was found significantly and positively correlated with bulk density and negatively correlated with silt+clay content, soil OC, water stable aggregates and mean weight diameter .Similarly, soil moisture at field capacity and permanent wilting point were found significantly positively correlated with silt+clay content, soil organic carbon, water stable aggregates and mean weight diameter and significantly negatively correlated with bulk density. Maximum water holding capacity was also found significantly positively correlated with silt+clay content, soil OC, water stable aggregates and mean weight diameter and significantly negatively correlated with bulk density. No significant correlation was found between hydraulic properties and soluble salt concentration.