Effect of Deficit Irrigation Regimes on Yield and Fruit Quality of Olive Trees (cv. Memecik) on the Aegean Coast of Turkey

2017 ◽  
Vol 66 (5) ◽  
pp. 820-827 ◽  
Author(s):  
Ü. Kaya ◽  
F. Öztürk Güngör ◽  
G. Çamoğlu ◽  
E. Akkuzu ◽  
Ş. Aşik ◽  
...  
Keyword(s):  
Fruit Quality ◽  
Deficit Irrigation ◽  
Irrigation Regimes ◽  
Olive Trees

scholarly journals Effects of Various Quantities of Three Irrigation Water Types on Yield and Fruit Quality of ‘Succary’ Date Palm

Agronomy ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 796
Author(s):  
Mohamed A. Mattar ◽  
Said S. Soliman ◽  
Rashid S. Al-Obeed
Keyword(s):  
Soil Water ◽  
Fruit Quality ◽  
Irrigation Water ◽  
Deficit Irrigation ◽  
Date Palm ◽  
Saline Water ◽  
Irrigation Level ◽  
Water Types ◽  
Palm Trees

A field experiment was conducted on date palm trees (Phoenix dactylifera ‘Succary’) cultivated on sandy loam soil from 2017 to 2018. This study investigated the effects of providing water of three different qualities, namely freshwater (FR) and two saline water sources: reclaimed wastewater (RW) and well-water (WE) applied through three irrigation levels representing 50% (I50), 100% (I100), and 150% (I150) of crop evapotranspiration (ETc), on the soil water and salt distribution patterns, yield, water productivity (WP), and fruit quality of the ′Succary′ date palm. The electrical conductivity (ECw) of FR, RW, and WE were 0.18, 2.06, and 3.94 dS m−1, respectively. Results showed that WE applied by the I150 treatment had the highest soil water content, followed by RW used in the I100 irrigation level and FR with I50, whereas the soil salt content was high for WE applied in the I50 level and low for FR applied by the I150 treatment. Deficit irrigation (I50) of date palms with either RW or WE reduced date yields on average 86 kg per tree, whereas the yield increased under over-irrigation (I150) with FR to 123.25 kg per tree. High WP values were observed in the I50 treatments with FR, RW, or WE (on average 1.82, 1.68, and 1.67 kg m−3, respectively), whereas the I150 treatment with each of the three water types showed the lowest WP values. Fruit weight and size were the lowest in the full irrigation (I100) with WE, whereas the I150 treatment with RW showed the highest values. There were no significant differences in either total soluble solids (TSS) or acidity values when the irrigation level decreased from 100% to 50% ETc. Compared with both I50 and I100 treatments, reduced values of both TSS and acidity were observed in the I150 treatment when ECw decreased from 3.94 to 0.18 dS m−1,. Fruit moisture content decreased with the application of saline irrigation water (i.e., RW or WE). Total sugar and non-reducing sugar contents in fruits were found to be decreased in the combination of RW and I150, whereas the 50% ETc irrigation level caused an increment in both parameters. These results suggest that the application of deficit irrigation to date palm trees grown in arid regions, either with FR or without it, can sufficiently maximize WP and improve the quality of fruits but negatively affects yield, especially when saline water is applied. The use of saline water for irrigation may negatively affect plants because of salt accumulation in the soil in the long run.

scholarly journals Impact of Deficit Irrigation on Yield and Fruit Quality of Orange Trees ( Citrus Sinensis , L. Osbeck, CV. Meski Maltaise) in Southern Tunisia

2020 ◽  
Vol 69 (S1) ◽  
pp. 186-193 ◽  
Author(s):  
K. Nagaz ◽  
F. El Mokh ◽  
N. Ben Hassen ◽  
M.M. Masmoudi ◽  
N. Ben Mechlia ◽  
...  
Keyword(s):  
Fruit Quality ◽  
Citrus Sinensis ◽  
Deficit Irrigation ◽  
Southern Tunisia ◽  
Orange Trees

scholarly journals Deficit Irrigation in Vitis labruscana Bailey ‘Concord’ in Central Washington

HortScience ◽  
2017 ◽  
Vol 52 (3) ◽  
pp. 450-456 ◽  
Author(s):  
Jason E. Stout ◽  
Joan R. Davenport ◽  
R. Troy Peters
Keyword(s):  
Fruit Quality ◽  
Water Availability ◽  
Deficit Irrigation ◽  
Control Treatment ◽  
Commercial Practice ◽  
Yield And Quality ◽  
Vitis Labruscana ◽  
New Strategy ◽  
Sudden Decrease

Drought conditions in the western United States have limited water availability for the irrigation of agricultural products. This can have a dramatic impact on yield and quality of specialty perennial crops, such as juice grapes (Vitis labruscana Bailey). Washington State juice grape industry typically irrigates to 100% of crop-specific evapotranspiration (ETc) throughout the season to minimize yield loss. However, as conditions have limited water availability, growers need a new strategy to cope with the limited water supply. Regulated deficit irrigation (RDI) applies less water than plant ETc and has been shown to improve fruit quality in red wine grapes (Vitis vinifera). The objectives of this study were to evaluate the effects of RDI treatments on the yield and quality of ‘Concord’ juice grapes as compared with current commercial practice. The treatments reduced the amount of water applied between bloom and veraison by 25% (−25%), 33% (−33%), and 45% (−45%) from the control application. The results of this 4-year study initially indicated a dramatic decrease in yield in the −45% treatment (7.5 Mg/ha) as compared with the control treatment (19.2 Mg/ha); however, yield for the RDI treatments recovered in the subsequent seasons and was not statically different from the control. There were no statistical differences in fruit quality between treatments. This indicates that RDI has the potential to decrease water applied between bloom and veraison without impacting fruit quality; however, to avoid a sudden decrease in yield, it would be necessary to gradually reduce water applications over several years.

YIELD AND OIL QUALITY OF YOUNG OLIVE TREES GROWN UNDER DIFFERENT IRRIGATION REGIMES

1999 ◽  
pp. 185-188 ◽  
Author(s):  
R. d'Andria ◽  
G. Morelli ◽  
P. Giorio ◽  
M. Patumi ◽  
G. Vergari ◽  
...  
Keyword(s):  
Oil Quality ◽  
Irrigation Regimes ◽  
Olive Trees

Fruit quality of mini-watermelon as affected by grafting and irrigation regimes

2008 ◽  
Vol 88 (6) ◽  
pp. 1107-1114 ◽  
Author(s):  
Simona Proietti ◽  
Youssef Rouphael ◽  
Giuseppe Colla ◽  
Mariateresa Cardarelli ◽  
Marina De Agazio ◽  
...  
Keyword(s):  
Fruit Quality ◽  
Irrigation Regimes
Sign in / Sign up

Export Citation Format

Share Document