Environmental parameters R2 Adj. R2 C (p)C (p) RMSE Pr> F Desiree 0.80 0.76 2.17 1.58   Maximum temperature         0.0309* Wind speed         0.0029* Diamont 0.89 0.86 2.25 1.45   Wind speed         0.0015* Maximum temperature         0.0065* Minimum temperature         0.1146NS SH-5 0.91 0.88 3.55 2.35   Wind speed         0.0008* Maximum temperature         0.0067* Minimum temperature         0.0677NS SH-339 0.86 0.80 2.16 2.58   Wind speed         0.0016* Minimum temperature         0.0191* Maximum temperature         0.1476NS FD35-36 0.80 0.73 2.93 1.65   Minimum temperature         0.0123* Wind speed         0.0421* Maximum temperature         0.1114NS *Significant at 0.05NS: Non-Significant.

Table 4: Summary of stepwise regression model developed to predict PLB disease with respect to environmental factors on five potato varieties during two years (2011-13).