Potential             Yield         

100%

90%

75%

50%

0%

ECe

ECw

ECe

ECw

ECe

ECw

ECe

ECw

ECe

ECw

Olive

3.75

2.5

6.3

4.2

10.2

6.8

16.8

11.2

28.5

19

Palm

4

2.7

6.8

4.5

11

7.3

18

12

32

21

Grape

1.5

1

2.5

1.7

4.1

2.7

6.7

4.5

12

7.9

Citrus

1.7

1.1

2.3

1.6

3.3

2.2

4.8

3.2

8

5.3

Guava

2.5

1.7

3.8

2.6

6

4

9.4

6.3

16

11

Table 5: Orchards tolerance and yield potential as influenced by irrigation water salinity (ECw) and soil salinity (ECe) source: FAO website, salinity problems.