Drought-Tolerant Corn Taps Deeper Soil Profile
November 26, 2014| |
A study conducted by crop stress physiologist Qingwu Xue of Texas A&M AgriLife Research evaluated the difference in water use between drought-tolerant and conventional corn hybrids. Xue's team compared drought tolerant hybrids with a popular conventional hybrid that does not have the drought tolerant trait.
After measuring soil water content, soil water extraction, seasonal evapotranspiration, water-use efficiency, biomass and grain yield, they found that there was no difference in total evapotranspiration between the two hybrids. However, at the 50 percent evapotranspiration level, the drought-tolerant corn can access more water from the deeper soil profile, showing high water use efficiency that leads to higher yield benefits under drought conditions.
For more details, read http://today.agrilife.org/2014/11/06/agrilife-research-study-shows-drought-tolerant-corn-taps-deeper-soil-profile/.
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