Unique nitrate uptake induction pattern in cold tolerant wheat genotypes

Nitrate uptake behaviour of cold tolerant and cold sensitive wheat genotypes was examined by analysing the induction of nitrate uptake. The sensitive genotypes when exposed to cold showed delay in induction of nitrate uptake system, whereas, the tolerant genotypes did not show any such delay in the induction of nitrate uptake system. Moreover, the pattern of nitrate uptake in sensitive genotypes (non-acclimated and cold-acclimated) and non-acclimated tolerant genotypes showed a bimodal kind of induction, while, the cold-acclimated tolerant genotypes showed only unimodal induction pattern.