Heritability with positive Interaction Variance
Variety
2
consistently outperforms Variety
1 under poor environmental conditions (e.g.,
nutrient-poor soil at EQ='50').
However, Variety 1 consistently outperforms Variety 2
in a good environment (e.g., added fertilizer at EQ='80'). In
intermediate environments (EQ=65), the two varieties on
average perform equally well, with considerable variance. The
differential
response is not predictable
from
experiments in either environment
separately. Also, Variety 1 in a better
environment (EQ=70) performs equally well with Variety 2
in a poorer environment
(EQ=60).