3,893 research outputs found

    Screening of Coriander Genotypes for their Relative Susceptibility against Aphids under Field Conditions

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    The field experiments were conducted during Rabi 2013-14 and 2014-15 to screen out twelve varieties/entries of coriander (Coriandrum sativum L.) for their relative susceptibility against aphids. None of the varieties/entries escaped the infestation of aphids. The build-up of aphid infestation started from second half of December and reached to its maximum in the first to third week of February in both years and then gradually declined. On the basis of grade index of mean aphid population, coriander varieties RCr- 684 (25.45 aphids/plant), RCr-446 (26.45 aphids/plant), ACr-1 (26.60 aphids/plant), RCr- 436 (41.75 aphids/plant), Gujarat Coriander-2 (42.45 aphids/plant), Pant Haritma (43.50 aphids/plant) and Gujarat Coriander-1 (43.70 aphids/plant) were categorized as least susceptible, Rajendra Swati and RCr-41 were moderately susceptible, whereas, Swati (CS-6), Sadhna (CS-4) and Sindhu (CS-2), 73.88, 70.60 and 69.50 aphids/plant, respectively were categorized as highly susceptible varieties of coriander against aphids under field conditions. Coriander variety RCr-684 received maximum yield (16.82 and 16.63 q/ha) for both the years followed by ACr-1 and RCr-446

    Weed management in ajwain (Trachyspermum ammi L.)

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    A field experiment was conducted to find out a suitable and economical method of weed management in ajwain. The experiment was laid in randomized block design with three replications. Based on the two year study, it was found that besides weed free treatment, significantly higher plant height, number of primary, secondary branches, number of leaves, number of nodes and dry matter accumulation plant-1 at (60 DAS, 90 DAS and at harvest) were recorded with the pre-emergence application of oxadiargyl @75 g ha-1 + one hand weeding at 45 days after sowing (DAS) and pendimethalin @1 kg ha-1 + one hand weeding at 45 DAS. Yield attributes like number of umbels plant-1, number of umbellate pant-1, number of seeds umbel-1, umber of seed umbellate-1 and test weight as well as seed and straw yields of ajwain were also higher with the above two treatments. After weed free treatment, the lowest dry weight of weed at harvest, weed index and highest weed control efficiency were obtained with pre-emergence (PE) application of oxadiargyl @75 g ha-1 + one hand weeding at 45 DAS. The highest gross returns and net returns per hectare were obtained in weed free treatment. This was followed by pre-emergence application of oxadiargyl @75 g ha-1 + one hand weeding at 45 DAS, which recorded the highest B: C ratio (2.62). &nbsp

    Economic feasibility of weed management practices in nigella (Nigella sativa L.)

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    A field experiment was conducted to find out the suitable and economical method of weed control in nigella. Based on two year study, it was found that besides weed free treatment, significantly higher plant height, number of primary and secondary branches, number of leaves, number of nodes and dry matter accumulation plant-1 (at 60 days after sowing (DAS), 90 DAS and at harvest) were recorded with the pre-emergence application of oxadiargyl @ 75 g ha-1 + one hand weeding at 45 DAS and pendimethalin @ 1 kg ha-1 + one hand weeding at 45 DAS. Similarly, yield attributes like number of siliqua plant-1, number of seeds siliqua-1, siliqua size and test weight as well as seed and straw yields of nigella were also higher with these two treatments. Besides weed free treatment, lower dry weight of weed at harvest, weed index with highest weed control efficiency was obtained under pre- emergence (PE) application of oxadiargyl @ 75 g ha-1 + one hand weeding at 45 DAS. The Highest gross returns and net returns were obtained in weed free treatment followed by effective control of weed with pre -emergence application of oxadiargyl @ 75 g ha-1 + one hand weeding at 45 DAS but highest B: C ratio (2.62) was recorded with preemergence application of oxadiargyl @ 75 g ha-1 + one hand weeding at 45 DAS. &nbsp

    EFFECT OF VARMAM THERAPY IN SANTHU VATHAM (OSTEO ARTHRITIS–KNEE JOINT)-A SINGLE CASE STUDY

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    Santhu vatham is a vatha disease mentioned in the Siddha text book Yugi vaidhya chindhamani. The clinical features can be equated to osteo arthritis of knee joint. Varmam therapy is one of the external therapies mentioned in Siddha literature. A 68 y old male from chennai reported to the varmam, narambiyal matrum enbumurivu OPD of Siddha Central Research Institute (SCRI) on 2.5.2015 with chief complaints of pain and swelling in both knee joints since 5 y. He was given varmam therapy. Varma points are points where the pranan, ie, vital energy of our body is concentrated (residing). The treatment is given for 45 d for once in 2 d for 15 min. The pain was assessed using visual analogue score before and after treatment. The pain was markedly reduced after treatment. The range of movements of the knee joint was also improved

    Effect of Different GA3 Concentration and Frequency on Growth, Flowering and Yield in Gaillardia (Gaillardia pulchella Foug.) Cv. Lorenziana

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    The present experiment was conducted at the Horticultural Instructional Farm, Department of Horticulture, J.A.U., Junagadh during the winter 2004-05. The experiment comprised of ten treatments, viz., three concentrations of GA3 (50, 150, 250 ppm) at three frequencies (single, double and triple spray at 30, 45 and 60 days from transplanting) and control. Each treatment was replicated thrice in randomized block design. Of the different treatments, GA3 250 ppm single spray recorded maximum plant height and plant spread. Number of branches per plant was highest under double spray of GA3 at 50 ppm. Longest flowering duration, maximum flower diameter and maximum shelf-life were observed with single spray of 250 ppm GA3. It also registered maximum number and weight of flowers per plant besides highest flower yield

    Performance of Indian crossbred wool on khadi spinning system

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    HP Crossbred, JK Crossbred and JK Merino yarns have been spun on the New Model Charkha (NMC) spinning system to find out the suitability of Indian crossbred wool in Khadi sector. These crossbred wools produced in the north temperature region of India have been spun into medium quality yarn linear density of 42 tex. The pure crossbred wool yarns have higher U%, imperfections and hairiness index; and lower tenacity, elongation-at-break and coefficient of friction. The mixing of Australian merino wool with JK crossbred wool significantly improves yarn performance in terms of fineness (31 tex), evenness (U%), imperfections and hairiness index. The tenacity, elongation-at-break and coefficient of friction of mixed yarns increase significantly by mixing of Australian merino wool with JK crossbred wool. These findings will help in increasing the utilization of crossbred wool and reducing the costing of end products

    Performance of Indian crossbred wool on khadi spinning system

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    127-132HP Crossbred, JK Crossbred and JK Merino yarns have been spun on the New Model Charkha (NMC) spinning system to find out the suitability of Indian crossbred wool in Khadi sector. These crossbred wools produced in the north temperature region of India have been spun into medium quality yarn linear density of 42 tex. The pure crossbred wool yarns have higher U%, imperfections and hairiness index; and lower tenacity, elongation-at-break and coefficient of friction. The mixing of Australian merino wool with JK crossbred wool significantly improves yarn performance in terms of fineness (31 tex), evenness (U%), imperfections and hairiness index. The tenacity, elongation-at-break and coefficient of friction of mixed yarns increase significantly by mixing of Australian merino wool with JK crossbred wool. These findings will help in increasing the utilization of crossbred wool and reducing the costing of end products

    Optimal accommodation and management of high renewable penetration in distribution systems

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    The paper presents a new bi-level optimisation framework for optimal accommodation and operational management of wind power generation and battery energy storage system (BESS) simultaneously, aiming to maximise the renewable hosting capacity of distribution networks. A new objective function is suggested comprising of annual energy loss in feeders, reverse power flow into the grid, non-utilised BESS capacities, round-trip conversion losses of BESSs and node voltage deviation subjected to various system security constraints. An artificial-intelligence-based optimal management of BESS is proposed for effective control of high-renewable power generation. Due to the high investment and running costs of BESS, minimum storage capacity has been ensured in planning stage. In order to show the effectiveness of the proposed model, it is implemented on a benchmark test distribution system of 33-bus. Besides, various test cases are investigated and compared, which shows that the proposed optimisation model is promising
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