P Srinivasa Rao
P Srinivasa Rao has completed his Ph.D at the age of 27 years from Indian Agricultural Research Institute and postdoctoral studies from Centre for Cellular and Molecular Biology. He is leading the sweet sorghum research program at ICRISAT, a premier CGIAR organization working on semi-arid tropics. He has published more than 30 papers in reputed journals, 3 reviews, 10 book chapters, 2 books and serving as an editorial board member of Sugar Tech and Rangeland Science. He is a member of the committee on second generation biofuels development constituted by Ministry of New and Renewable energy (MNRE), Govt. of India. He has developed several sweet sorghum hybrid parents, varieties and hybrids. He is currently handling projects funded by European Commission, Islamic Development Bank, MNRE and contributing as task lead for Indo-US JCERDC on Lignocellulosic ethanol production.
Renewable energies are critical contributors to the energy supply portfolio as they contribute to global energy security, reduce dependency on fossil fuels and provide opportunities for reducing emissions of greenhouse gases (GHG), and are expected to play major roles in energy strategies of nations to mitigate adverse global climatic change. Sweet sorghum is a multi purpose biofuel feed stock that meets food, feed, fodder and fuel requirements. It is suited to semiarid tropics and likely to improve the farm incomes owing to it’s resilience to diverse agro-ecological situations. The feedstock productivity can be improved by exploiting heterosis for candidate sugar traits like juice yield and biomass. Hence, a total of thirty hybrids were evaluated in a sweet sorghum hybrid trial during 2011 rainy season and 2011 post rainy season along with three checks, viz., CSH 22SS, Urja and RSSV 9 in RCBD with three replications. Combined ANOVA revealed that significant differences between genotype in respect of all agronomic traits like days to 50 % flowering, plant height, stalk yield, juice yield and Brix %, sugar yield and revealed that significant interaction effect for genotype x season for sugar yield. As amny as nine double cross hybrids were found to be significntly superior over the check CSH 22SS (1.8 t ha-1) with a range of 3-45% heterosis for sugar yield. Hence, double cross hybrid production strategy can be exploited to further raise the levels of sugar yield in sweet sorghum.