Intercropping of Gramineous Pasture Ryegrass (Lolium perenne L.) and Leguminous Forage Alfalfa (Medicago sativa L.) Increases the Resistance of Plants to Heavy Metals

Table 2

The biomass of ryegrass and alfalfa with different treatments.

Treatments	Ryegrass		Alfalfa
	Shoot	Root	Shoot	Root
	(g·plant^−1)	(g·plant^−1)	(g·plant^−1)	(g·plant^−1)
Monoculture	0.52 ± 0.09^a	0.14 ± 0.01^b	0.34 ± 0.05^b	0.24 ± 0.02^b
Intercropping	0.57 ± 0.07^a	0.18 ± 0.03^a	0.47 ± 0.04^a	0.37 ± 0.05^a

Note. Values are the means ± standard error (). Means followed by the same letter are not significantly different at .