The document discusses a study on the effect of different water regimes (wet, medium, dry) on corn and wheat production in Saudi Arabia over four years from 1985-1988. For corn, the yield was not significantly affected by the water treatments, possibly due to the amount of water applied and water quality. For wheat, the wet regime produced significantly taller plants, heavier seeds, and greater seed and biological yields compared to the medium and dry regimes. It was concluded that corn may not tolerate irrigation deficits or saline water, while wheat can withstand some water stress.

1. The effect of water regimes on corn and
wheat production
A.M AL-OMARAN – SOIL SCIENCE DEPT., COLLEGE OF AGRICULTURE, KING
SAUD UNIVERSITY,
EMIR, J. AGRIC. SCI. (1990)
Meelika Raup
EMÜ, TL

2. CONTENTS
 Introduction
 Methods and materials
 Results
 Conclusion

3. INTRODUCTION
 Effects of water regime on corn and wheat
production in the Kingdom of Saudi Arabia
 Most limiting factor in Saudi Arabia is water
deficit

4. METHODS AND MATERIALS
 Experiments were taken over four years from
1985 to 1988
 Each experiment consisted of three different
regimes - wet, medium and dry

5. METHODS AND MATERIALS
 The soil of the field content
 Early planting time was chosen to avoid the high
temperature

6. METHODS AND MATERIALS
 Wet regime, 1190 mm of water were added in 17
irrigations in the first season and 840 mm in 12
irrigations in the second season
 Medium regime, 840 and 560 mm of water were
given for first and second seasons
 Dry regime, 770 and 420 mm of water

7. RESULTS OF CORN
 The results of corn experiment showed that the
yield of corn was not significantly affected by the
water regime treatments
 Causes might be:
 theamount of water applied
 water quality.

8. RESULTS OF WHEAT
 The results of wheat showed that:
 the wet regime gave significantly taller plants and
heavier seeds
 significantly greater seed and biological yields than
meedium and dry regimes.

9. CONCLUSION
 It can be concluded that the corn may not tolerate
irrigation deficit and saline water quality
 Wheat recorded a high yield of some water stress

10. REFERENCES
 Journal article „The effect of water regimes on
corn and wheat production“
 http://ejfa.info/article/view/5025