. 2015 Mar 30;10(3):e0121132. doi: 10.1371/journal.pone.0121132

Table 3. Atom% ¹³C excess, recovery and distribution of ¹³C in each part of plant and soil in sole cropped and intercropped systems.

		Mungbean				Oat
		Grain	Stem	Leaves	Roots	AGP ¹	Roots	Rhizodeposition	Total
Atom% ¹³C excess	S_p	0.04±0.02^a	0.25±0.06^a	0.08±0.02^a	0.08±0.01^a	-	-	-	-
	I_p	0.03±0.00^a	0.25±0.04^a	0.05±0.02^a	0.10±0.01^a	0.003±0.000^a	0.02±0.00^a	-	-
	S_m	0.02±0.00^a	0.20±0.04^a	0.05±0.02^a	0.12±0.07^a	-	-	-	-
	I_m	0.02±0.00^a	0.19±0.05^a	0.06±0.02^a	0.07±0.00^a	0.001±0.000^b	0.01±0.00^b	-	-
Recovery of ¹³C (in % of applied)	S_p	1.59±0.07^a	33.99±4.90^ab	11.97±2.82^a	3.52±0.05^a	-	-	4.82±3.24^a	55.88±8.23^a
	I_p	2.70±1.44^a	36.47±6.07^a	8.20±3.37^ab	5.27±5.45^a	0.04±0.03^a	0.08±0.00^a	14.54±11.35^a	67.30±11.25^a
	S_m	6.88±1.59^a	22.44±6.00^c	4.68±1.69^b	5.46±3.20^a	-	-	11.08±8.62^a	50.54±11.91^a
	I_m	7.74±5.89^a	24.80±2.75^bc	5.72±0.92^b	2.64±1.32^a	0.07±0.03^a	0.11±0.06^a	11.00±6.13^a	52.10±7.35^a
Distribution of recovered ¹³C (%)	S_p	2.84±1.07^b	60.91±3.64^a	21.25±2.51^a	6.41±1.30^a	-	-	8.59±5.11^a	100
	I_p	4.18±2.43^ab	55.27±12.18^a	12.42±5.42^b	7.52±6.69^a	0.06±0.04^a	0.13±0.02^a	20.43±16.59^a	100
	S_m	14.07±4.03^ab	45.38±11.69^a	9.34±2.71^b	10.96±6.11^a	-	-	20.24±10.75^a	100
	I_m	14.62±9.73^a	48.47±9.39^a	11.04±1.38^b	4.97±2.03^a	0.15±0.06^a	0.23±0.16^a	20.53±9.59^a	100

¹ Above-ground part

Mungbean were labeled five weeks after planting and harvested at the beginning of pod setting and at maturity. Mungbean were divided into grain, stem, leaves and root, while oats were divided into above-ground part and root, and rhizodeposition.

The abbreviation in the table represent different treatments. S_p: sole mungbean harvested at pod setting, S_m: sole mungbean harvested at maturity, I_p: intercropping system harvested at mungbean pod setting, and I_m: intercropping system harvested at mungbean maturity. Values are means±standard error (n = 4). Values with different letters within a column indicate significant differences between the treatment S_p, I_p, S_m and I_m (Tukey HSD, p<0.05). ^yyyy

Table 3. Atom% 13C excess, recovery and distribution of 13C in each part of plant and soil in sole cropped and intercropped systems.

Table 3. Atom% ¹³C excess, recovery and distribution of ¹³C in each part of plant and soil in sole cropped and intercropped systems.