Table 3 Effect of planting dates, soybean varieties, and their interactions on seed yield and yield components. Giza 35 (MG-III), Giza 21 (MG-IV), Giza 22 (MG-IV), Giza 111 (MG-IV), Crawford (MG-IV), and Dr-101 (MG-V).

From: Impact of planting dates on yield and resistance of soybean varieties to soybean stem fly (Melanagromyza sojae) in Egypt

Planting date

Soybean variety

Days to maturity (no.)

Plant height (cm)

Pods/plant (no.)

Seed yield/plant (g)

100-seed weight (g)

Seed yield/plot (kg)

First season

 Mid-May

Giza 21

134.00

106.82

66.23

29.43

16.28

2.44

Giza 22

134.00

79.02

96.58

34.43

15.35

2.67

Giza 35

108.00

104.76

90.67

32.91

18.90

2.75

Giza111

136.00

63.30

77.85

36.26

22.13

2.78

Crawford

135.00

94.51

67.45

32.47

19.32

2.18

Dr-101

163.00

96.39

62.74

32.77

17.72

2.42

 Mean

135.00

90.80

76.92

33.04

18.28

2.54

 Beginning of June

Giza 21

132.00

105.45

61.56

25.92

15.19

2.37

Giza 22

131.00

75.42

94.98

29.79

10.69

2.54

Giza 35

105.00

102.08

78.71

30.72

17.61

2.64

Giza111

134.00

62.06

74.49

33.03

20.46

2.72

Crawford

129.00

92.37

57.93

24.50

15.33

1.98

Dr-101

163.00

91.73

54.42

28.42

14.91

2.00

 Mean

132.30

88.18

70.34

28.73

15.69

2.37

 Mid-June

Giza 21

128.00

100.86

54.34

22.97

12.79

2.18

Giza 22

127.00

72.93

86.67

25.20

11.82

2.37

Giza 35

99.00

102.23

73.21

26.35

14.70

2.42

Giza111

128.00

61.84

69.45

29.55

18.84

2.35

Crawford

121.00

66.83

50.60

26.96

12.68

1.72

Dr-101

159.00

97.59

60.51

34.54

18.88

2.45

 Mean

127.00

83.71

65.79

27.59

14.95

2.25

 Average of soybean variety

Giza 21

131.33

104.37

60.71

26.10

14.75

2.33

Giza 22

130.66

75.79

92.74

29.80

12.62

2.52

Giza 35

104.00

103.02

80.86

29.99

17.07

2.60

Giza111

132.66

62.40

73.93

32.94

20.47

2.62

Crawford

128.33

84.57

58.66

27.97

15.77

1.96

Dr-101

161.66

95.23

59.22

31.91

17.17

2.28

 LSD 0.05 planting dates

4.19

2.80

5.08

1.23

1.40

0.06

 LSD 0.05 soybean varieties

3.15

3.20

4.04

1.08

0.91

0.05

 LSD 0.05 interaction

5.96

ns

6.84

1.67

1.56

0.27

Second season

 Mid-May

Giza 21

125.00

123.03

58.68

25.05

14.49

2.18

Giza 22

123.00

91.99

89.56

30.21

12.91

2.36

Giza 35

96.00

117.51

82.84

28.68

16.26

2.43

Giza111

126.00

82.68

71.75

32.34

18.87

2.40

Crawford

126.00

106.82

58.41

27.10

16.49

1.88

Dr-101

156.00

107.11

56.73

27.80

15.67

2.13

 Mean

125.33

104.85

69.66

28.53

15.78

2.23

 Beginning of June

Giza 21

123.00

119.18

53.05

21.52

13.53

2.09

Giza 22

121.00

88.90

88.21

25.79

10.20

2.21

Giza 35

91.00

112.32

72.28

26.17

15.18

2.33

Giza111

123.00

78.54

66.85

29.23

17.75

2.24

Crawford

119.00

104.85

52.15

19.10

13.89

1.64

Dr-101

154.00

104.77

47.03

23.90

15.12

1.68

 Mean

121.83

101.42

63.26

24.28

14.27

2.03

 Mid-June

Giza 21

119.00

117.10

48.10

18.87

10.60

1.99

Giza 22

115.00

86.92

81.03

21.47

10.79

2.04

Giza 35

84.00

109.42

68.69

23.47

12.30

2.23

Giza111

117.00

77.87

63.19

25.78

15.95

2.13

Crawford

111.00

78.01

45.12

23.38

11.22

1.38

Dr-101

150.00

110.18

55.44

30.51

18.02

2.31

 Mean

116.00

96.58

60.26

23.91

13.14

2.01

 Average of soybean variety

Giza 21

122.33

119.77

53.27

21.81

12.80

2.08

Giza 22

119.66

89.27

86.26

25.82

11.30

2.20

Giza 35

90.33

113.08

74.60

26.10

14.58

2.33

Giza111

122.00

79.69

67.26

29.11

17.52

2.26

Crawford

118.66

96.56

51.89

23.19

13.86

1.64

Dr-101

153.33

107.35

53.06

27.40

16.27

2.04

 LSD 0.05 planting dates

3.40

1.31

4.89

1.18

0.71

0.15

 LSD 0.05 soybean varieties

2.30

2.42

3.68

0.97

0.58

0.10

 LSD 0.05 interaction

5.12

ns

6.46

1.52

1.23

0.24

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