International Scholarly Research Notices

Research Article

Varietal Trials and Physiological Components Determining Yield Differences among Cowpea Varieties in Semiarid Zone of Nigeria

Table 2

Effect of cowpea variety on physiological parameters at Maiduguri in 2010 and 2011 combined analysis.

Treatment/cowpea variety

Seedling establishment at 2 weeks after sowing

Number of days to first flowering

Number of days to 50% flowering

Soil moisture suction measurements at (centibars)

Transmitted photosynthetic active radiation

Pod development period (days)

Number of days to physiological maturity

100-graqin weight (g)

Shelling percentage (%)

Harvest index

Grain yield per plant (g)

Grain yield (kg ha⁻¹)

Shell weight (kg ha⁻¹)

Fodder yield (kg ha⁻¹)

IT90K-277-2

88.50

43.00^d

52.67^d

12.83^b

76.23^bc

13.64^c

82.50^c

15.50^b

78.04

34.35^a

15.92^a

998.2^a

291.68^b

3387.6^cd

Kannanado White

90.17

64.33^a

80.00^a

8.83^c

92.08^a

18.08^a

97.17^a

19.80^a

63.13

15.18^e

7.37^c

378.3^c

140.87^d

4016.1^b

IT97K-499-35

93.50

39.17^e

52.17^d

13.00^ab

88.53^ab

17.03^ab

80.67^cd

15.17^b

69.14

34.27^a

12.27^ab

990.8^a

451.37^a

2720.7^c

Borno Brown

89.83

64.17^a

78.33^a

6.50^cd

90.75^a

18.38^a

98.50^a

20.42^a

63.81

14.37^e

5.59^c

373.9^c

167.10^cd

4902.8^a

IT89KD-391

96.17

45.17^cd

55.83^cd

13.67^ab

68.68^c

17.67^a

78.83^d

16.07^b

72.92

27.48^bc

12.72^ab

745.6^b

296.85^b

3373.0^bc

IT97K-568-18

87.17

47.67^c

60.67^bc

12.50^b

64.32^c

16.53^ab

82.17^c

14.86^b

71.15

25.87^c

9.46b^c

750.4^b

290.03^b

3699.1^b

IT98K-131-2

89.83

44.83^cd

54.00^cd

16.00^a

71.27^c

15.14^bc

76.33^e

15.15^b

69.63

31.00^ab

12.46^ab

938.0^ab

419.17^a

3425.6^bc

IT89KD-288

91.17

56.00^b

65.33^b

5.17^d

94.87^a

15.13^bc

91.67^b

15.97^b

77.21

20.73^d

9.47^bc

784.8^ab

235.13^bc

5365.1^a

SE (±)

2.887

1.201

1.025

1.089

4.891

0.685

0.675

0.419

2.571

1.614

1.586

75.18

32.232

261.46

1: means within a column and treatment followed by similar letter(s) are not significantly different () according to Duncan’s multiple range test (DMRT).