TABLE 2

Restricted maximum-likelihood estimates of the among-line variance component, VL, and associated P value within each field and controlled environment

EnvironmentVLVerrorP
Fall
    Rhode Island2.2113.62<0.0001
    North Carolina77.40435.04<0.0001
Spring
    Rhode Island5.3118.51<0.0001
    North Carolina5.6950.21<0.0001
Long days2.662.77<0.0001
Short days11.6814.70<0.0001