Table 4.

Effects of unilateral application of isoflavones on double-rooted soybean nodules.

Treatments	Nodule number (per plant)		Nodule dry weight (g/plant)
	T+	T−	T+	T−
I0	113.0 ± 9.71b	113.0 ± 9.71a	0.18 ± 0.033b	0.18 ± 0.033a
I3.75	146.0 ± 11.45a	98.6 ± 10.74b	0.23 ± 0.038a	0.12 ± 0.009b

I₀ is the nutrient solution without isoflavones supplied on both sides, and I_3.75 is the nutrient solution with daidzein and genistein applied unilateral side. Treated side denoted as T+, untreated side denoted as T–, the values in the table represent the mean ± standard error (n = 4), different lowercase letters indicate significant difference (p < 0.05) by Duncan’s multiple range test and longitudinal comparison.