Evaluation location: Iowa, United States
Length and width of the pistillate catkin (measured in mm) using SmartGrain v.1.1 (Tanabata et al. 2012). Random sample of 20, intact catkins. Length is defined as distance between distal to proximal ends. Length is defined as distance between distal to proximal ends.
Tanabata T, Yamada T, Shimizu Y, Kanekatsu M, Takano M. 2012. SmartGrain: High-Throughput Phenotyping Software for Measuring Seed Shape through Image Analysis.