Crop roots (IMAGE) Penn State Caption The study revealed root trait differences among the three important winter annual cover crops -- canola, crimson clover and triticale. The research uncovered several important root traits, including the high root-to-shoot ratio and large production of between-row roots for triticale, which is a hybrid of winter wheat and cereal rye. Credit Joseph Amsili, Penn State Usage Restrictions non commercial use only License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.