A study on physico-biochemical efficiency of LBG 17 a Blackgram (Vigna mungo L. Hepper) genotype against powdery mildew
Journal Title: IOSR Journal of Pharmacy and Biological Sciences (IOSR-JPBS) - Year 2017, Vol 12, Issue 5
Abstract
LBG 17 is a resistant inbred of Blackgram developed from susceptible parents Nethiminumu and chikkuduminumu to defend the damage due to powdery mildew. In present study the physiological efficiency of LBG 17, Nethiminumu and chikkuduminumu over powdery mildew was studied in terms of chlorophyll, phenols, soluble proteins, soluble carbohydrates, total carbohydrates, peroxidase, superoxide dismutase and polyphenol oxidase. Powdery mildew effect on yield efficiency was also studied in LBG 17, Nethiminumu and chikkuduminumu in terms of seeds per pod, 100 seed weight, number of pods and yield per acre and correlated with the respected physiological and biochemical parameters. The chlorophyll content (mg/g), soluble proteins (µg/mg), total carbohydrates (µg/mg) were highest in resistant variety on fungal infection whereas these characters recorded less in susceptible cultivars. The activity of phenols (µg/mg), peroxidises (µg/mg), super oxide disumutase (µg/mg) and polyphenol oxidase (µg/mg) were significantly increased in tolerant genotype compared to its susceptible parents. Significant variation in the protein molecular mass of LBG 17 was also observed at 66 KD over its parents. The regression analysis studies revealed that the increased physico, biochemical activities in LBG 17 showed a positive correlation with the increased yield which in turn confirm the inherent ability of this genotype over its parents against powdery mildew.
Authors and Affiliations
N. Tirupathiswamy, G. Rosaiah2, K. Babu2
Keywords
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- EP ID EP391115
- DOI 10.9790/3008-1205031317
- Views 64
- Downloads 0
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