Effect of elevated CO2 on Leguminous edible crop under Free Air Concentration Enrichment System

Abstract

The effect of climate change came across a lots of arguments for why human beings newlineneeds not to cut their carbon emission. Some of the researchers have opinions that newlinerising level of carbon dioxide benefits the plants so global warming is not as bad as it newlineis predicted for the food crops. A lots of experimental findings predicted that higher newlineconcentration of carbon dioxide would help in increase in photosynthesis which newlinecontributes to increase in plant growth and biomass. Many scientist and researchers newlineobserves that CO2 fertilization effects the natural ecosystem. They performed those newlineexperiments in which artificially doubling CO2 from pre industrial level leads to newlineincrease tree productivity by 23 percent. newlineApart from the fertilization effect some negative consequences of elevated newlinecarbon dioxide effects such as drought and heat stress also goes side by side. newlineScientist and researchers have also specifically noticed the effect of elevated newlinecarbon dioxide on agricultural crops like wheat, rice, soyabean, corn. Effect of newlineelevated CO2 for wheat, maize, rice, and soyabean crops were estimated and results newlinedepicted that crops grown at level of CO2 at 2000 level experience newlinedecline in yield due to higher temperature and drier condition. They have found that newlinelots of crop plants grow well due to the fertilization effect and have noticed that newlinedoubling CO2 from pre industrial level boost the productivity of crops like wheat by newline11.5 percent and corn by 8.4 percent. Thus it is well established that higher concentration of atmospheric carbon dioxide affects crops in two ways they boost yield by increase rate of photosynthesis which in turns spurs growth and they reduce amount of water crops loose through transpiration. During elevated CO2 concentration the stomata pores do not open wide resulting in lower transpiration by plants and increased water use efficiency. newlineThere have been little impact analysis that looked at the dual effect of yield newlineand water use efficiency and how they play out in regions in India. newline newline newline