Table 4 Comparison of FFMM hybrid traits in a warmer vs. cooler greenhouse
TraitHybrid warmer greenhouseHybrid cooler greenhouse
Plant height105.9 ± 7.8 cm***92.1 ± 6.2 cm
Ear leaf length77.4 ± 3.2 cm***71.7 ± 4.6 cm
Ear leaf width40.8 ± 3.4 mm39.2 ± 5.3 mm
Number of kernels on primary ear180.5 ± 32.3 kernels*157.6 ± 27.4 kernels
Total dry seed weight of primary ear16.2 g ± 3.5 g16.6 ± 3.8 g
Primary ear length10.6 ± 0.9 cm***8.8 ± 0.9 cm
Number of tassel branchesa4 branches4 branches
Days from planting to anther emergencea33 days***37 days
Days from planting to silkinga31 days***35.5 days
  • Comparison of the vigor of traits in an F1 hybrid of FFMM-A and -B in two different relative temperature conditions, representing a subset of a larger group of two-way ANOVA and K-sample median tests. The significance values are assigned to the more vigorous treatment if there was a significant difference between the two. The first six trait values given are a mean ± SD, while the last three are median values. * and *** represent significance values of 0.05 and 0.001, respectively.

  • a Median value is given; a K-sample median test was used to analyze significance of interaction instead of two-way ANOVA.