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Table 2 Correlations among agronomic traits and N efficiency in varieties grown low and normal N environment

From: Identification and screening of nitrogen-efficient cotton genotypes under low and normal nitrogen environments at the seedling stage

  Low N Environment
SPAD value Height ADW RDW TDW ANU RNU TNU NUtE NUpE
Normal N Env SPAD   −0.36** − 0.19 − 0.28** −0.24 − 0.077 − 0.08 − 0.10 −.20* − 0.10
Height − 0.27**   0.70** 0.67** 0.74** 0.30** 0.31** 0.39** 0.25* 0.39**
ADW −0.17 0.66**   0.75** 0.97** 0.51** 0.31** 0.59** 0.29** 0.59**
RDW −0.11 0.57** 0.74**   0.89** 0.30** 0.40** 0.43** 0.38** 0.43**
TDW −0.16 0.67** 0.97** 0.88**   0.46** 0.37** 0.57** 0.34** 0.57**
ANU −0.34** 0.56** 0.77** 0.49** 0.72**   −0.019 0.93** −0.52** 0.93**
RNU −0.12 0.24* 0.41** 0.59** 0.50** .45**   0.35** −0.10 0.35**
TNU −0.32** 0.54** 0.77** 0.57** 0.74** .98** 0.64**   −0.52** 1.00**
NUtE 0.22* 0.091 0.16 0.31** 0.22* −.46** −0.28** −0.47**   −0.52**
NUpE −0.32** 0.54** 0.76** 0.57** 0.74** 0.97** 0.64** 0.99** −0.47**  
  1. Note: * and ** indicate significant difference at P < 0.05 and P < 0.01 level, respectively