Chennai, July 03, 2015: Our Prime Minister has made a timely appeal for bridging the prevailing gap between potential and actual crop yields in eastern India through a second green revolution.  The term “green revolution” coined by Dr William Gaud of USA in 1968 emphasises that the pathway for production advance should be productivity improvement.  However there was criticism that monoculture with the same crop variety, over exploitation of soil and ground water, excessive application of pesticides and fertilizers will all diminish the prospects for sustainable high yields.  Therefore I called for an “ever-green revolution” which implies productivity improvement in perpetuity without ecological and social harm.  The evergreen revolution involves the integration of ecological principles in technology development and dissemination.  The US President Barak Obama addressing the Indian Parliament on 8thNovember 2010 said “as farmers and rural areas face the effects of climate change and drought, we will work together to spark a second, more sustainable evergreen revolution”.  Similarly the famous biological scientist E O Wilson made the following comment on my concept of evergreen revolution. “The problem before us is how to feed billions of new mouths over the next several decades and save the rest of life at the same time without being trapped in a Faustian bargain that threatens freedom and security.  The benefits must come from an evergreen revolution.  The aim of this new thrust is to lift food production well above the level attained by the green revolution of the 1960s, using technology and regulatory policy more advanced and even safer than those now in existence”

 What we should do for raising the productivity of agriculture in Eastern India is the adoption of ecotechnologies which can help to overcome the problems posed by the triple alliance of pests, pathogens and weeds through farming systems approaches which are environmental friendly and which can lead to sustainable advances in bridging the yield gaps.  The bridging the yield gap movement should be grounded on sound principle of ecology- Prof.Swaminathan