Table 2 Comparison of vigor in a relatively warm greenhouse
TraitHybrid warmer greenhouseFFMM-A warmer greenhouseFFMM-B warmer greenhouse
Plant height105.9 ± 7.8 cm81.3 ± 9.4 cm***95.1 ± 8.9 cm***
Ear leaf length77.4 ± 3.2 cm64.2 ± 3.2 cm***67.5 ± 4.0 cm***
Ear leaf width40.8 ± 3.4 mm31.7 ± 2.3 mm***40.1 ± 4.0 mm
Number of kernels on primary ear180.5 ± 32.3 kernels80.4 ± 34.5 kernels***117.8 ± 23.4 kernels***
Total dry seed weight of primary ear16.2 g ± 3.5 g7.8 ± 3.2 g***9.8 ± 2.6 g***
Primary ear length10.6 ± 0.9 cm7.5 ± 1.3 cm***8.5 ± 0.9 cm***
Number of tassel branchesa4 branches3 branches9 branchesb
Days from planting to anther emergencea33 days34 days***35 days***
Days from planting to silkinga31 days34 days***36 days***
  • Comparison of both FFMM-A and FFMM-B parents to an F1 hybrid from a cross of the two lines. All significance levels are denoted after the value for each parent. Significance levels are only assigned if the value of the trait in the parental line is considered less vigorous than the hybrid. The first six trait values are given as a mean ± SD, while the last three trait values are the median value. *** represents a significance value of 0.001.

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

  • b Value significantly larger than hybrid.