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Iowa State University

2018

Plant Sciences

Graduate Theses and Dissertations

Brassinosteroids

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Genetic And Brassinosteroid Control Underlying Leaf Angle Variation Across The Canopy In Sorghum, Maria Betsabe Mantilla Perez Jan 2018

Genetic And Brassinosteroid Control Underlying Leaf Angle Variation Across The Canopy In Sorghum, Maria Betsabe Mantilla Perez

Graduate Theses and Dissertations

Leaf angle, the inclination between the midrib of a leaf blade and the stem, is one of the main determinants of crop productivity. Plants with an upright leaf angle on the top and more horizontal towards the bottom can maximize their light interception and photosynthetic capacity, increasing yield per plant and unit of land. Experiments to investigate the genetic control of leaf angle have been routinely designed on the use of one or two arbitrarily selected leaves, or merged the data from multiple leaves on an average value. This approach has limited our understanding of the control of leaf angle ...