Table 1 Effect of different strip-width treatments on photosynthetically active radiation transmittance (PAR-transmittance) of soybean canopy at the fifth trifoliate stage (V5), seventh trifoliate stage (V7), and flower initiation stage (R1) in cropping seasons from 2012 to 2013.

From: Strip-width determines competitive strengths and grain yields of intercrop species in relay intercropping system

Years

Treatments

PAR-transmittance (%)

V5

V7

R1

2012

T1

63.4 ± 2.3c

45.4 ± 3.4c

31.9 ± 2.4c

T2

82.3 ± 1.9b

67.8 ± 3.3b

54.9 ± 1.3b

T3

84.3 ± 3.8b

69.6 ± 2.9b

59.0 ± 1.3b

SS

100.0 ± 0.0a

100.0 ± 0.0a

100.0 ± 0.0a

LSD (0.05)

6.31

5.53

4.53

2013

T1

61.6 ± 2.3d

43.9 ± 2.1c

30.1 ± 1.6c

T2

79.2 ± 2.2c

66.1 ± 1.4b

53.1 ± 1.6b

T3

84.9 ± 1.5b

67.9 ± 1.8b

55.7 ± 1.5b

SS

100.0 ± 0.0a

100.0 ± 0.0a

100.0 ± 0.0a

LSD (0.05)

5.67

3.21

5.52

  1. Treatment codes represent narrow-strips (T1, 180 cm); medium-strips (T2, 200 cm); and wide-strips (T3, 220 cm) in maize/soybean relay intercropping system. SS is the sole cropping system of soybean. Means are averages over three replicates ± standard error of the mean. Means that do not share the same letters in a column differ significantly at p ≤ 0.05 using least significant differences, calculated separately for each year.
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