Agronomy and Horticulture Department



Case of the Drought Resistant Genetically Engineered Corn Plant

Date of this Version


Document Type



Plant and Soil Sciences eLibrary (PASSeL) Lesson


Copyright © 2005 Don Lee. Used by permission.

This project was supported in part by the National Research Initiative Competitive Grants CAP project 2011-68002-30029 from the USDA National Institute of Food and Agriculture, administered by the University of California-Davis and by the National Science Foundation (NSF), Division of Undergraduate Education, National SMETE Digital Library Program, Award #0938034, administered by the University of Nebraska. Any opinions, findings, conclusions or recommendations expressed in this publication are those of the author and do not necessarily reflect the views of the USDA or NSF.

Development of this lesson was supported in part by the Cooperative State Research, Education, & Extension Service, U.S. Dept of Agriculture under Agreement Number PX2003-06237 administered by Cornell University, Virginia Tech and the American Distance Education Consortium (ADEC) and in part by the New Mexico and Nebraska Agricultural Experiment Stations. Any opinions , findings, conclusions, or recommendations expressed in this publication are those of the author and do not necessarily reflect the view of the U.S. Department of Agriculture.


How to use this resource

This scenario accompanies the online lesson "Transpiration - Water Movement Through Plants" and is designed to allow you to apply the concepts learned in that lesson to a real-life problem.


Meet Brandon, a farmer in south-central Nebraska. Brandon raises daughters for fun and corn for profit.

Brandon hears about a new type of genetically engineered corn that is being developed to be drought resistant. Brandon is an expert on growing corn in water limiting conditions.


Question: Why would limited water be important in growing corn?

To review this concept click on the link: Transpiration - What and Why?

A. the water supports the structure of the plant since that plant does not have bones.

B. the water brings nutrients such as nitrogen and phosphorus into the plant

C. plants need water in their cells for biochemical processes.

D. All of the above are reasons plants need water to grow. Limiting water will limit how these processes work in the plant.

Continues . . .