34 research outputs found
Good Agricultural Pratices for Minimizing Aflatoxin Contamination in Groundnut-Hindi
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No full textNot AvailableGood Agricultural Practices for Minimizing Aflatoxin Contamination in Groundnut.Not Availabl
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No full textNot AvailableCrop responses to mineral nutrients may be conducive or adverse to diseases, depending on disease type, severity, crop species, and cultivars. Therefore, an experiment was conducted to measure the effect of nutrient doses on to peanut diseases. The treatments were quite effective to manage the peanut diseases in kharif (Kh) as well as in rabi-summer (RS). All the treatments, applied however significantly reduced the soil borne as well as foliar fungal disease in comparison to control (without any external supply of nutrients). In kharif severity of ELS, LLS and Rust was (6.9) (4.4) and (6.2), respectively while it was highest in control (T7) and the per cent disease incidence of soil borne disease viz. aflaroot, collar rot and stem rot observed (2.5, 3.9 and 13.2 respectively) in T1 while it was (4.5, 5.7 and 16.8 respectively) in control (T7). In rabi stem rot incidence (21.3%) was recorded in control while it was lowest (9.7%) in the treatment T3 (25:50:0 NPK + 500 kg
gypsum ha-1 + 2.5 kg zinc ha-1). The pod and haulm yield was recorded for effectiveness of different treatment on yield and found that the treatment T1 (25:50:0 NPK + 500 kg Gypsum+ 2.5 kg zinc+ 1 kg Boron) significantly increased the yield up to 40.5%. In both season T1 (25:50:0 NPK + 500 kg Gypsum+ 2.5 kg zinc + 1 kg Boron) reduces the disease severity significantly.Not Availabl
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No full textNot AvailableA field experiment was conducted at ICAR-DGR, Junagadh in kharif (rainfed or monsoon season crop) of 2009 and 2010 for integrated disease management (IDM) of major peanut diseases. The IDM component comprised of a combination of seed treatment with Trichoderma, mancozeb, tebuconazole; soil application of Trichoderma and castor cake; and foliar sprays of hexaconazole and tebuconazole. Observations on foliar fungal diseases
were recorded by adopting 1-9 modified scale and in the case of soil borne diseases per cent incidence was recorded. The treatments were found effective to maintain the initial plant population and were highest in seed treatment with mancozeb followed by seed treatment with Trichoderma harzianum. Lowest incidence of soil-borne diseases was recorded in seed treatment with mancozeb and seed treatment with tebuconazole in
comparison to untreated control. The foliar disease severity was lowest in treatment tebuconazole and two foliar sprays of tebuconazole whereas it was recorded highest in the untreated control. Highest pod and haulm yield were recorded in seed treatment with mancozeb and two sprays of hexaconazole and seed treatment with tebuconazole and two foliar sprays of tebuconazole whereas it was lowest in the untreated control. The cost of
treatment are very important to manage diseases, therefore, it is suggested that combination of treatments are most suitable for disease management.Not Availabl
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No full textNot AvailableStem rot (Sclerotium rolfsii Sacc.) resistance in groundnut genotypes was due to activities of defense enzymes such as, catalase, peroxidase and polyphenol oxidase. Bio-agent, Bacillus amyloliquefaciens isolated from groundnut rhizosphere enhances the activities of defense enzymes through salicylic acid induced systemic resistance. In resistant genotypes (NRCGCS-19 and NRCGCS-319) higher activities of defense enzymes were recorded constitutively while in susceptible genotypes it was increased after bio-agent treatment. The activities of pathogenesis related-proteins viz., polygalacturonase and chitinase were registered in plants inoculated with S. rolfsii. Enzymes, catalase, peroxidase, polyphenol oxidase and chitinase showed strong negative correlation with disease severity index. However, the activity of polygalacturonase was directly related to disease severity index and inversely related to activity of chitinase. Hence, to obtain required levels of crop protection against S. rolfsii one has to grow either resistant genotypes or bio-agent treated susceptible genotypes.Not Availabl
