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Articles by D. Durga Devi
Total Records ( 2 ) for D. Durga Devi
  M. Djanaguiraman , M. Pandiyan , P. Duraimurugan , J. Annie Sheeba , D. Durga Devi and U. Bangarusamy
  A pot culture experiment was conducted in tomato and cotton to evaluate the compatibility of Atonik with insecticide and fungicide. Atonik was sprayed at four different concentrations (0.1, 0.2, 0.4 and 0.8%) along with monocrotophos (2 ml L-1) or Atonik 0.4% and monocrotophos (2 ml L-1) alone and at three different concentrations (0.1, 0.25 and 0.5%) along with Confidor (0.2 ml L-1) or Atonik 0.25% and Confidor (0.2 ml L-1) alone to assess the bioefficacy on 25 and 45 DAS, in tomato and cotton, respectively. To assess the compatibility with fungicide the above mentioned Atonik concentration with fytolon and carbendazim in tomato and cotton, respectively was tested. The results revealed that Atonik is compatible with tested pesticides. The insecticidal property of monocrotophos or confidor or fungicidal property of carbendazim or fytolon was not altered along with growth promoting activity of Atonik. The plants sprayed with Atonik or in combination with pesticides showed zero grades of phytotoxic symptoms.
  K. Krishna Surendar , D. Durga Devi , I. Ravi , P. Jeyakumar and K. Velayudham
  The main aim for this field experimental study is to screening of various banana cultivars and hybrids for water deficit tolerance through antioxidative enzymes and yield. The field experiment was conducted at National Research Centre for Banana to screen the banana cultivars and hybrids for water deficit tolerance and to elucidate information on antioxidative enzymes mechanism correlated with yield of banana cultivars and hybrids. The methodology of this experimental were analyzed by split plot design and has two treatments considered as main plot (M) viz., control plot taken as M1 and water deficit plot taken as M2 and also the cultivars and hybrids were considered as sup plots (S). The stress was imposed according to the Available Soil Moisture (ASM) and this ASM was measured by using pressure plate membrane apparatus. The experimental data were significantly varied between the treatments and also cultivars and hybrids. The antioxidative enzymes of catalase, super oxide dismutase and ascorbate peroxidase were significantly enhanced during water deficit conditions. Among the twelve cultivars and hybrids, Karpuravalli, Karpuravalli x Pisang Jajee, Saba and Sannachenkathali was identified as tolerant to water stress with highly accelerated by water stress treatment in the range of 23 to 32% over Control in Catalase (CAT), Super Oxide Dismutase (SOD) and Ascorbate Peroxidase (APX) leads to reduced the cellular membrane damaged by reactive oxygen species and get higher yield; whereas, Matti, Pisang Jajee x Matti, Matti x Anaikomban and Anaikomban x Pisang Jajee were notified as sensitive cultivars and hybrids with lesser increase in antioxidative enzyme activity of 15% than control which is leads to get very low yield.
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