C.C. Ogbaga1, A.K.
Bajhaiya2??? and S.K. Gupta3*
Biological? Sciences, Nile University of? Nigeria, Abuja, 900001, Nigeria
Plant Physiology, Ume? Plant Science Centre,? Ume? University, Ume?, 90187,
Civil Engineering, Indian Institute of Technology Delhi-110 016, India
*Corresponding Author Email :
The use of biomass
energy is preferred over fossil fuels as the former is more sustainable and
emits a reduced amount of greenhouse gases. Sorghum, a tropical C4 plant, is
known to have a marked drought tolerance. However, very little is known about
the mechanisms involved. An allied species Zea mays, also a C4 plant,
is far less drought tolerant. Both plants are known to accumulate high
biomass during the course of their growth cycle and can be used as renewable
energy sources. This article discusses the possibilities of using these two
plants for the production of improved biomass in the context of drought
tolerance and sustainable food production. Crucial and novel approaches that
render Sorghum more tolerant to drought have been reviewed. Novel drought tolerance
mechanisms in two sorghum cultivars- Samsorg 17 (more drought tolerant) and
Samsorg 40 (less drought tolerant) have also been reviewed.
Key words: Biomass energy, Drought stress, Maize, Sorghum
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