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2019 - 201912020 - 20231
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Author: Aman × End date: 2023 × Type: Thesis × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    Effect of seed treatment on seed quality of Quinoa (Chenopodium quinoa) during storage
    (CCSHAU, Hisar, 2023-07-20) Aman; Puneeth Raj M.S.
    The present study entitled ―Effect of seed treatments on seed quality of Quinoa (Chenopodium quinoa) during storage‖ was carried out at laboratory of Department of Seed Science and Technology, CCS Haryana Agricultural University, Hisar. The seeds of quinoa (Cv. Himshakti) were treated with imidacloprid, thiram, vitavax and polymer along with their combinations and were stored for 10 months. Secondly seeds were primed with water, cobalt chloride, potassium nitrate, calcium chloride and GA3 at 25℃ for 12 h, 24 h and 36 h after 10th month of storage period. All the treatments were evaluated for seed quality parameters viz. seed moisture content (%), speed of germination, germination (%), seedling length (cm), radicle emergence, seedling dry weight (mg), vigour index I & II. Results revealed that seeds treated with Imidacloprid + Vitavax (Thiram + Carboxin) + Polymer were found significantly higher in seed quality parameters followed by Vitavax (Thiram + Carboxin) + Polymer and least was found in control. Seeds stored in polythene bags showed better seed quality than seeds stored in cloth bags. Quinoa seeds primed with GA₃ at 25℃ for 24 h were found significantly higher seed quality parameters compared to other treatments.
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    ThesisItemOpen Access
    Comparative performance evaluation of different types of sprayer in cotton crop
    (CCSHAU, 2019) Aman; Anil Kumar
    Self-propelled high clearance sprayer (HS), tractor operated gun sprayer (GS), and lever operated knapsack sprayer (KS) were evaluated for its performance under local agro-climatic conditions. To select suitable operational parameters the sprayers were initially evaluated at three pressure levels and three heights and corresponding discharge, spray angle, swath width and spray distribution pattern were observed under laboratory conditions and the optimized value of pressure and target height were selected for the evaluation of the sprayers in field conditions. Self-propelled high clearance sprayer, tractor operated gun sprayer and lever operated knapsack sprayer provided best results at a pressure of 3 kg cm-2 and a height of 54.5 cm, 15 kg cm-2 and 54.5 cm and 3 kg cm-2 and 53 cm, respectively. Under field conditions, the NMD, VMD and UC of Self-propelled high clearance sprayer (HS), tractor operated gun sprayer (GS), and lever operated knapsack sprayer (KS) were found to be 55.57 μm, 198.34 μm, 3.58 and 60.73 μm, 213.18 μm, 3.60 and 52.98 μm, 217.72 μm, 4.35, respectively. The area covered by droplets by self-propelled high clearance sprayer was 11.75 and 43.17 % higher than tractor operated gun sprayer (GS) and lever operated knapsack sprayer (KS), respectively. The results were found significant (p= 0.0007). The volume of spray deposition by Selfpropelled high clearance sprayer (HS) was significantly (p= 0.0026) 6.58 and 19.51 % higher than that of GS and KS, respectively. The volume of spray deposition on top side of leaves was significantly higher than bottom side of leaves in all cases irrespective of types of sprayer. The bio-efficacy of selfpropelled high clearance sprayer (50.63 %) was higher than tractor operated gun sprayer (49.11 %) and lever operated knapsack sprayer (47.57 %). The field capacity of Self-propelled high clearance sprayer (HS), tractor operated gun sprayer (GS), and lever operated knapsack sprayer (KS) was found to be 1.44, 0.82 and 0.078 ha h-1 with efficiency of 67.74, 78.63 and 82.12 %, respectively. The cost of operation for HS, GS and KS was found to be 632.76 Rs. ha-1, 504.78 Rs. ha-1 and 656.73 Rs. ha-1, respectively. The B:C ratio was found to be 1.11, 1.98 and 1.83 for Self-propelled high clearance sprayer, tractor operated gun sprayer, and lever operated knapsack sprayer. Self-propelled high clearance sprayer is a recommended technology and showed best results in terms of uniformity, droplets size, area covered by droplets, volume of spray deposition, bio-efficacy and highest field capacity.