Table 4 Effect of compost, planting dates and their combinations on photosynthetic pigments in Fenugreek seeds during 2021/2022 and 2022/2023 seasons.

From: Enhancing fenugreek productivity under water deficient Egyptian sandy soils: optimizing organic inputs and nutrients efficiencies

Planting dates treatments (B)

Compost levels (ton/ha) (A)

0

12

18

24

Mean (B)

0

12

18

24

Mean (B)

1st season (2021/2022)

2nd season (2022/2023)

Chlorophyll a (mg/g F.W.)

 20th September

2.10

3.06

3.07

3.09

2.83

1.94

3.07

3.10

3.14

2.81

 5th October

3.07

3.09

3.11

3.40

3.17

3.04

3.11

3.13

3.28

3.14

 20th October

3.02

3.03

3.03

3.08

3.04

2.99

3.10

3.11

3.14

3.08

 Mean (A)

2.73

3.06

3.07

3.19

 

2.66

3.09

3.11

3.19

 

 L.S.D at 5%

A: 0.012

B: 0.112

AB: 0.224

A: 0.064

B: 0.058

AB: 0.116

Chlorophyll b (mg/g F.W.)

 20th September

0.52

0.76

0.89

1.33

0.88

0.66

0.81

0.92

1.00

0.85

 5th October

0.82

1.01

1.40

2.26

1.37

0.99

1.23

1.32

1.55

1.28

 20th October

0.80

0.82

1.18

1.31

1.03

0.82

1.00

1.17

1.36

1.09

 Mean (A)

0.72

0.86

1.16

1.63

 

0.83

1.02

1.14

1.30

 

 L.S.D at 5%

A: 0.055

B: 0.087

AB: 0.174

A: 0.063

B: 0.082

AB: 0.164

Carotenoids (mg/g F.W.)

 20th September

1.880

1.944

1.961

2.340

2.031

1.223

1.856

1.962

2.276

1.829

 5th October

1.862

2.390

2.454

2.634

2.335

1.830

2.119

2.230

2.634

2.203

 20th October

1.880

2.018

2.295

2.530

2.181

1.603

1.962

2.049

2.436

2.012

 Mean (A)

1.874

2.117

2.237

2.501

 

1.552

1.979

2.080

2.449

 

 L.S.D at 5%

A: 0.109

B: 0.090

AB: 0.180

A: 0.099

B: 0.202

AB: 0.404

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