Screening cotton cultivars for low-phosphorus tolerance: a comparison of hydroponic and field methods

Table 4 The effects of phosphorus (P) level and cultivar (C) on fiber quality traits of cotton during mature stage

Traits	LP	SP	Percent change at LP/%	F-values
Traits	LP	SP	Percent change at LP/%	P	C	P × C
Fiber length /mm	29.3 b	29.9 a	-2.0	24.14^**	8.84^**	2.42^**
Fiber strength /(cN·tex⁻¹)	29.5 b	30.0 a	-1.7	4.53^*	7.27^**	2.78^**
Micronaire	4.9 a	4.8 a	2.1	1.81NS	12.04^**	2.33^**
Fiber uniformity /%	85.2 a	84.9 a	0.4	2.08NS	3.76^**	3.24^**
Fiber elongation /%	6.4 b	6.5 a	-1.5	10.43^**	49.45^**	3.08^**

LP indicates 0 kg•hm⁻² P₂O₅ and SP for 90 kg•hm⁻² P₂O₅. P, phosphorus level. C, cultivar. Values followed by different letters in the same row are significantly different at the 0.05 probability level. ** P < 0.01; *P < 0.05; NS, no significance at P = 0.05

ISSN: 2523-3254