95
5.3.1 Effect of Water Stress on Winter Tomato
Water is the limiting factor in crops production and hence high yield. Thus, attempts
should be made to obtain maximum yield with minimum water supply. Under water
stress condition, tomato plants tend to grow a denser root system, compared to the
root system grown under non-stress water condition (Nuruddin 2001). According to
Shamsul et al. (2008), the water stress at earlier stage of growth (20 day stage) has
Table 5.6 Saved irrigation water and total production of onion as a result cultivation on raised
beds and application of deficit irrigation
Raised beds cultivation
Deficit irrigation application
Saved water
Total production
Saved water
Total production
(MCM)
(000 ton)
(MCM)
(000 ton)
Lower Egypt
Alexandria
0
0.4
0.004
0.4
Behira
6.7
397.5
3.1
377.6
Gharbia
35.5
907.9
8.4
862.5
Kafr El Sheikh
1.1
28.8
0.3
27.4
Dakahlia
16.6
393.3
3.9
373.6
Damietta
1.1
27.1
0.3
25.7
Sharkia
9.1
207.5
2.3
197.2
Ismailia
0.1
5.1
0.1
4.9
Suez
0.3
9.8
0.1
9.3
Menoufia
0.6
15.4
0.1
14.6
Qalyubia
7.9
202.0
1.9
191.9
Total
79.0
2194.9
20.4
2085.1
Middle Egypt
Giza
0.8
15.2
0.2
14.5
Bani Sweif
4.5
194.4
2.1
184.6
Fayoum
5.9
181.7
1.9
172.6
Minya
1.8
78.6
0.8
74.6
Total
13.0
469.9
5.0
446.4
Upper Egypt
Assiut
1.4
31.2
0.3
29.6
Sohag
5.0
282.2
2.8
268.1
Qena
0.5
35.9
0.5
34.1
Luxor
0.5
9.5
0.1
9.0
Aswan
0.4
24.0
0.4
22.8
New Valley
0
40.6
0.5
38.6
Total
7.7
423.3
4.6
402.1
Bordered governorates
Marsa Matrouh
0
4.3
0.1
4.1
Total
0
4.3
0.1
4.1
Grand total
99.7
3092.3
30.1
2937.7
5 Vegetable Crops and Deficit Irrigation in Egypt
5.3.1 Effect of Water Stress on Winter Tomato
Water is the limiting factor in crops production and hence high yield. Thus, attempts
should be made to obtain maximum yield with minimum water supply. Under water
stress condition, tomato plants tend to grow a denser root system, compared to the
root system grown under non-stress water condition (Nuruddin 2001). According to
Shamsul et al. (2008), the water stress at earlier stage of growth (20 day stage) has
Table 5.6 Saved irrigation water and total production of onion as a result cultivation on raised
beds and application of deficit irrigation
Raised beds cultivation
Deficit irrigation application
Saved water
Total production
Saved water
Total production
(MCM)
(000 ton)
(MCM)
(000 ton)
Lower Egypt
Alexandria
0
0.4
0.004
0.4
Behira
6.7
397.5
3.1
377.6
Gharbia
35.5
907.9
8.4
862.5
Kafr El Sheikh
1.1
28.8
0.3
27.4
Dakahlia
16.6
393.3
3.9
373.6
Damietta
1.1
27.1
0.3
25.7
Sharkia
9.1
207.5
2.3
197.2
Ismailia
0.1
5.1
0.1
4.9
Suez
0.3
9.8
0.1
9.3
Menoufia
0.6
15.4
0.1
14.6
Qalyubia
7.9
202.0
1.9
191.9
Total
79.0
2194.9
20.4
2085.1
Middle Egypt
Giza
0.8
15.2
0.2
14.5
Bani Sweif
4.5
194.4
2.1
184.6
Fayoum
5.9
181.7
1.9
172.6
Minya
1.8
78.6
0.8
74.6
Total
13.0
469.9
5.0
446.4
Upper Egypt
Assiut
1.4
31.2
0.3
29.6
Sohag
5.0
282.2
2.8
268.1
Qena
0.5
35.9
0.5
34.1
Luxor
0.5
9.5
0.1
9.0
Aswan
0.4
24.0
0.4
22.8
New Valley
0
40.6
0.5
38.6
Total
7.7
423.3
4.6
402.1
Bordered governorates
Marsa Matrouh
0
4.3
0.1
4.1
Total
0
4.3
0.1
4.1
Grand total
99.7
3092.3
30.1
2937.7
5 Vegetable Crops and Deficit Irrigation in Egypt