Table 2.

Effect of soaking with BR on rice root growth under salt stress.

Stage	Treatment	Total root length/cm		Total root surface area/cm2		Total root volume/cm3		Mean root diameter/cm
		Huanghuazhan	Chaoyouqianhao	Huanghuazhan	Chaoyouqianhao	Huanghuazhan	Chaoyouqianhao	Huanghuazhan	Chaoyouqianhao
2.5th leaf	CK	122.06 ± 2.1381b	115.45 ± 12.4015a	5.67 ± 0.3732ab	5.83 ± 0.515a	0.04 ± 0.0029a	0.04 ± 0.0031a	0.07 ± 0.0004a	0.06 ± 0.0006a
	T1	139.49 ± 1.8773a	106.53 ± 0.0666a	6.28 ± 0.0421a	5.83 ± 0.0805a	0.03 ± 0.0008b	0.05 ± 0.0056a	0.05 ± 0.0016c	0.06 ± 0.0009b
	T2	111 ± 3.8717b	115.79 ± 1.5044a	4.61 ± 0.4892b	5.16 ± 0.1423a	0.04 ± 0.002a	0.03 ± 0.003b	0.06 ± 0.0009b	0.06 ± 0.0009a
	T3	118.83 ± 7.3968b	115.09 ± 1.1463a	5.4 ± 0.2316ab	5.78 ± 0.1582a	0.03 ± 0.0005b	0.04 ± 0.0023a	0.05 ± 0.0008b	0.06 ± 0.0007a
4.5th leaf	CK	302 ± 0.3566a	429.89 ± 39.7854ab	10.83 ± 0.3461ab	18.53 ± 1.5922ab	0.06 ± 0.0023a	0.09 ± 0.0093a	0.3 ± 0.0055a	0.31 ± 0.0018a
	T1	312.03 ± 12.5714a	469.9 ± 39.3606a	13.32 ± 1.7621a	19.05 ± 2.9655a	0.04 ± 0.0085b	0.07 ± 0.001ab	0.27 ± 0.0024b	0.28 ± 0.002b
	T2	233.28 ± 49.579a	325.32 ± 21.5935b	8.52 ± 1.8966b	12.82 ± 0.9051b	0.06 ± 0.0033a	0.07 ± 0.0086b	0.32 ± 0.0183a	0.3 ± 0.0114ab
	T3	292.97 ± 6.8369a	402.17 ± 18.3484ab	11.94 ± 0.4522ab	18.06 ± 0.3722ab	0.05 ± 0.0027ab	0.09 ± 0.0029a	0.3 ± 0.0112ab	0.3 ± 0.0092ab

Values are given as means ± SE and different lowercase letters indicate significant differences at the P < 0.05 level.

CK: soaking with distilled water + watering 0 g L⁻¹ NaCl. T1: soaking with BR + watering 0 g L⁻¹ NaCl. T2: soaking with distilled water + watering 3 g L⁻¹ NaCl. T3: soaking with BR + watering 3 g L⁻¹ NaCl.