The effect of pollen storage temperatures on pollen viability, fruit set and fruit quality of six date palm cultivars

2018 ◽  
Vol 236 ◽  
pp. 279-283 ◽  
Author(s):  
Mohammed Mesnoua ◽  
Messaoud Roumani ◽  
Ahmed Salem
Keyword(s):  
Fruit Quality ◽  
Date Palm ◽  
Fruit Set ◽  
Pollen Viability ◽  
Pollen Storage ◽  
Storage Temperatures

Effect of Potassium and Polyamine Sprays on Fruit Set, Fruit Retention, Yield and Fruit Quality of Amhat Date Palm

2013 ◽  
Vol 8 (2) ◽  
pp. 77-86 ◽  
Author(s):  
M.M.M. Abd El-Migeed ◽  
E.A.M. Mostafa ◽  
N.E. Ashour ◽  
H.S.A. Hassan ◽  
Dorria M. Mohamed ◽  
...  
Keyword(s):  
Fruit Quality ◽  
Date Palm ◽  
Fruit Set

scholarly journals Impact of Chemical and Non-Chemical Thinning Treatments on Yield and Fruit Quality of Date Palm

2015 ◽  
Vol 4 (4) ◽  
pp. 18
Author(s):  
Mohamed S. Al Saikhan ◽  
Abdel-Kader A. Sallam
Keyword(s):  
Fruit Quality ◽  
Date Palm ◽  
Fruit Set ◽  
Block Design ◽  
The Other ◽  
Alternate Bearing ◽  
High Quality ◽  
Fruit Thinning ◽  
Thinning Process

<p>The fruit thinning process is employed for the production of high quality large-sized fruits and prevent the production of compact bunches. It is also one way to reduce the alternate bearing habits in date palm. In this study, seven thinning treatments (i.e. without spraying water after pollination, spraying water at 3 minutes after 3, 4 and 5 h, spraying Ethephon at 0, 500 and 1000 ppm after ten days from pollination) are used for Khalas and Ruzeiz date palm cultivars. The factorial experiment in a randomized completely block design with three replicates was done. The results reveal that, spraying water after mechanical pollination has reduced fruit set% and increased fruit shees%. Most thinning treatments reduced fruit yield/palm in both Khalas and Ruzeiz. Spraying water after 5 h enhanced fruit quality compared with the other thinning treatments in besr and tamr stages. Spraying with ethephon at 1000 ppm gave the increased sugars content and TSS, whereas reduced the moisture content in besr stage. Spraying water after 5 h from mechanical pollination or Ethephon at 1000 ppm after 10 days are suitable for obtaining economic yield with best fruit quality.</p>

scholarly journals IMPROVING FRUIT SET, YIELD AND FRUIT QUALITY OF KHADRAWI DATE PALM CULTIVAR

2018 ◽  
Vol 26 (4) ◽  
pp. 1461-1470
Author(s):  
A. Moustafa ◽  
N. Abdel-Hamid ◽  
A. Abd El-Hamid ◽  
M. El-Sonbaty ◽  
S. Abd El-Naby
Keyword(s):  
Fruit Quality ◽  
Date Palm ◽  
Fruit Set

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.

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