Scheduling Trickle Irrigation Using Soil Matric Potential for”Le Conte” Pear Trees Planted in Calcareous Soils
W.M, A., El- Gendy, R. (2009). Scheduling Trickle Irrigation Using Soil Matric Potential for”Le Conte” Pear Trees Planted in Calcareous Soils. EKB Journal Management System, 30(APRIL- JUNE), 235-247. doi: 10.21608/asejaiqjsae.2009.3236
Abd El-Messeih W.M; R.W. El- Gendy. "Scheduling Trickle Irrigation Using Soil Matric Potential for”Le Conte” Pear Trees Planted in Calcareous Soils". EKB Journal Management System, 30, APRIL- JUNE, 2009, 235-247. doi: 10.21608/asejaiqjsae.2009.3236
W.M, A., El- Gendy, R. (2009). 'Scheduling Trickle Irrigation Using Soil Matric Potential for”Le Conte” Pear Trees Planted in Calcareous Soils', EKB Journal Management System, 30(APRIL- JUNE), pp. 235-247. doi: 10.21608/asejaiqjsae.2009.3236
W.M, A., El- Gendy, R. Scheduling Trickle Irrigation Using Soil Matric Potential for”Le Conte” Pear Trees Planted in Calcareous Soils. EKB Journal Management System, 2009; 30(APRIL- JUNE): 235-247. doi: 10.21608/asejaiqjsae.2009.3236

Scheduling Trickle Irrigation Using Soil Matric Potential for”Le Conte” Pear Trees Planted in Calcareous Soils

Alexandria Science Exchange Journal
Article 9, Volume 30, APRIL- JUNE - Serial Number 2, June 2009, Page 235-247  XML PDF (669.88 K)
Document Type: Original Article
DOI: 10.21608/asejaiqjsae.2009.3236
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Authors
Abd El-Messeih W.M1; R.W. El- Gendy2
1Nubaria Hort. Res. Hort. Res. Instit., Agric. Res. Center, Egypt.
2Soil &Water Res. Dept. Nuclear Res. Center, Atomic Energy Authority, Cairo, Egypt.
Abstract
The present research was carried out in 2007 and 2008 years on 6 years old of "Le Conte" pear trees grafted on communis rootstock and grown in calcareous soil at Burg El-Arab region, Alexandria Governorate. The objective of this work was to investigate the effect of three irrigation rates based on soil matric potential measurements, which was as: (T1): high irrigation rate (-300 to -500 mbars), (T2): medium irrigation rate (-500 to -820 mbars) and (T3): low irrigation rate (-820 to -1762 mbars), on: vegetative growth, leaf chemical content, yield, fruit quality and water use efficiency (WUE).
The main results of this work can be summarized in the following points:
-    Trees grown under (T1) ( from 100 to 80% of A.W),  were significantly produced high shoot length, shoot diameter, leaf area fruit yield, high fruit quality ( F. length, diameter & weight) and gave higher water use efficiency (WUE). Also, these trees gave the highest leaf mineral composition (N, P, K, Ca, Mg, Fe, Mn & Zn) and leaf total chlorophyll followed by (T2) ( from 80 to 60% of A. W) & (T3) ( from 60 to 40% of A.W) for the two seasons.
-    On the other hand, trees grown under (T3) produced significantly high leaf free proline with fruits of highest firmness, acidity%, TSS% and total sugars% followed by those grown under (T2) and (T1) respectively, in the two studied seasons.
-    Based on the above general results, the irrigation treatment (T1) is recommended for the irrigation of "Le Conte" pear trees planted in calcareous soil at Burg El- Arabe region (Egypt) using the trickle irrigation system scheduled via the soil matric potential measurement using tensiometers.
Keywords
scheduling irrigation; Trickle irrigation system; Soil matric potential; pear trees; leaf mineral composition; water use efficiency
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