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Table 1 Changes in root morphological characteristics of contrasting N-efficient cotton genotypes under control (2.5 mmol·L−1), and high (5 mmol·L−1) N conditions

From: Genotypic variation in root morphology, cotton subtending leaf physiology and fiber quality against nitrogen

N condition RL /m RSA /cm2 RD /mm RV /cm3
Control 3.168 a 307.0 a 0.837 a 5.82 a
High N 2.861 b 278.1 b 0.886 7 a 5.47 b
LSD for N 0.007 5.7 0.004 0.08
Genotypes (G)
  CCRI-69 3.181 a 308.5 a 0.936 a 5.91 a
  XLZ-30 2.848 b 276.6 b 0.788 b 5.38 b
  LSD for G 0.004 3.4 0.006 0.15
Interactions (N × G) *** * * ns
  1. Means not sharing a letter in common with in a column differ significantly at 5% probability level. ns = Non-significant, * Significant at P ≤ 0.05, and *** Significant at P ≤ 0.001. RL: Root length, RSA: Root surface area, RD: Root diameter, and RV: Root volume