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Variability in total phenolic content of pearl millet genotypes: inbreds and designated B-lines
Get PDFTotal phenols of the 90 pearl millet genotypes comprising 46 each of inbreds and designated B-lines (maintainer of CMS lines) grown during kharif-2013 was estimated and those of the 27 genotypes (9 inbreds and 18 designated B-lines) selected during kharif-2013 further grown during kharif-2014 and estimated total phenolic content. Across the groups, pearl millet genotypes showed a significant and marked variation during both the seasons. It varied from rom 175 to 435 mg catechol equi./100g during kharif-2013 and from 191 to 387 mg catechol equi./100g dring kharif 2014. The mean total phenolic content of two seasons (kharif-2013 and kharif-2014) of selected lines varied from 199 to 400 mg catechol equi./100g. During both the seasons designated B lines showed lower mean total phenolic content than that of inbred lines. On the basis of mean performance during kharif-2013 and kharif-2014 HTP 94/54, LPBL 10/112, HMS 14B and HMS 21B were identified as low total phenols containing lines whereas, DPHBL-11-123, HBL 112/H12/1011, HMS 36B and HMS 53B were identified as high phenolic containing pearl millet lines
Influence of climate change on Helicoverpa armigera (Hubner) in pigeonpea
Get PDFAnnual monitoring of the population dynamics of Helicoverpa armigera in unprotected pigeonpea crop during kharif seasons of 2011 to 2014 for 4 years at the farmers field North Gujarat, India. Temperature, rainfall and host-plant species were analyzed with respect to population fluctuation of the insect pest. The observations revealed that, the average number of larval population per plant in the season (from 27th to 3rd standard weeks) was 0.97, 0.32, 0.30 and 0.38 larvae/plant during 2011, 2012, 2013 and 2014 respectively. Population of Helicoverpa armigera had significant and negative correlation with maximum temperature (r= -0.524), rainfall (r= 0.079) and relative humidity (r= -0.827, r= -0.595 morning and evening, respectively)
