Breeding Date Palm

Hadrami, I. El; Hadrami, Abdelbasset El

doi:10.1007/978-0-387-71201-7_6

Cited by 47 publications

(19 citation statements)

References 57 publications

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“…Date palm plants have the potential to gradually adapt to salinity, which would be lethal if the exposure is sudden [ 11 ]. The introduction of abiotic and biotic stress tolerance traits through somaclonal variation is economically very important in date palm [ 29 ]. It may also help to widen the genetic base of date palm to cope with salinity stress.…”

Section: Introductionmentioning

confidence: 99%

Induced in vitro adaptation for salt tolerance in date palm (Phoenix dactylifera L.) cultivar Khalas

2020

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Background: Soil salinity causes huge economic losses to agriculture productivity in arid and semiarid areas worldwide. The affected plants face disturbances in osmotic adjustment, nutrient transport, ionic toxicity and reduced photosynthesis. Conventional breeding approaches produce little success in combating various stresses in plants. However, non-conventional approaches, such as in vitro tissue culturing, produce genetic variability in the development of salt-tolerant plants, particularly in woody trees. Results: Embryogenic callus cultures of the date palm cultivar Khalas were subjected to various salt levels ranging from 0 to 300 mM in eight subcultures. The regenerants obtained from the salt-treated cultures were regenerated and evaluated using the same concentration of NaCl with which the calli were treated. All the salt-adapted (SA) regenerants showed improved growth characteristics, physiological performance, ion concentrations and K + /Na + ratios than the salt non-adapted (SNA) regenerants and the control. Regression between the leaf Na + concentration and net photosynthesis revealed an inverse nonlinear correlation in the SNA regenerants. Leaf K + contents and stomatal conductance showed a strong linear relationship in SA regenerants compared with the inverse linear correlation, and a very poor coefficient of determination in SNA regenerants. The genetic fidelity of the selected SA regenerants was also tested using 36 random amplified polymorphic DNA (RAPD) primers, of which 26 produced scorable bands. The primers generated 1-10 bands, with an average of 5.4 bands per RAPD primer; there was no variation between SA regenerants and the negative control. Conclusion: This is the first report of the variants generated from salt-stressed cultures and their potential adaptation to salinity in date palm cv. Khalas. The massive production of salt stress-adapted date palm plants may be much easier using the salt adaptation approach. Such plants can perform better during exposure to salt stress compared to the non-treated date palm plants.

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Section: Introductionmentioning

confidence: 99%

Induced in vitro adaptation for salt tolerance in date palm (Phoenix dactylifera L.) cultivar Khalas

2020

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“…The economic importance of date palms is mainly because of valuable nutritious fruit (dates), which contains carbohydrates, dietary fibers, fat, lipids, minerals and protein [3]. Saudi Arabia stands second (1,302,859 tons), after the major producer Egypt (1,562,171 tons), in the world in the production of dates [4].…”

Section: Introductionmentioning

confidence: 99%

Potential Synergy between Spores of Metarhizium anisopliae and Plant Secondary Metabolite, 1-Chlorooctadecane for Effective Natural Acaricide Development

Hussain

AlJabr

2020

Molecules

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Date palm dust mites are important pests severely infesting valuable nutritious fruits (dates) of date palm. In search of an alternative to acaricides, joint action of Metarhizium anisopliae EBCL 02049 spores and 1-Chlorooctadecane was evaluated as a potential candidate for the management of Oligonychus afrasiaticus through natural products. In this regard, in vitro tests were performed to evaluate the interaction of M. anisopliae spores with multiple doses of 1-Chlorooctadecane (0.8, 1.6, 2.4, 3.2, and 4.0 mg/mL). Compatibility bioassay results evidenced from vegetative growth (77.7–84.40 mm), sporulation (5.50–7.30 × 106 spores/mL), and germination (96.70–98.20%), revealed that all the tested doses are compatible (biological index > 82) with the spores of M. anisopliae. The impact of combined treatment of spores with 1-Chlorooctadecane in different proportions (Scheme I, II, III, and IV) compared to their sole application against O. afrasiaticus was evaluated by concentration–mortality response bioassays. Results showed that all the combined treatments revealed high mortality compared to the sole application, which showed relatively slow mortality response over time. Toxicity recorded from Scheme IV combinations (80% 1-Chlorooctadecane: 20% Spores), exhibited strong synergistic interaction (joint toxicity = 713). Furthermore, potent interactions have overcome the host antioxidant defense at the final stage of infection by tremendously reducing catalase, and superoxide dismutase activities. These experiments demonstrated fungal–toxin joint synergistic interaction as a promising date palm dust mite management option.

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“…Today, because of the increasing demands for employing functional food, the use of functional compounds in producing snacks is taken into consideration, which not only affects the physicochemical characteristics of the product but also the mechanical and thermal characteristics of the process (Altan, McCarthy, & Maskan, ; Alvarez‐Jubete, Arendt, & Gallagher, ; Ding, Ainsworth, Tucker, & Marson, ; Hagenimana, Ding, & Fang, ; Makowska, Zielińska‐Dawidziak, Niedzielski, & Michalak, ; Stojceska, Ainsworth, Plunkett, & İbanoğlu, ). Phoenix dactylifera L. (date palm) is one of the oldest fruit trees that is grown in tropical and semi‐tropical regions of the world (Hadrami & Hadrami, ). Every year, significant and high amounts of date kernel are produced in the date producer countries.…”

Section: Introductionmentioning

confidence: 99%

Optimization of physicochemical and functional properties of corn-based snacks containing date kernel flour

Asghari-pour¹,

Noshad²,

Nasehi

et al. 2018

J Food Process Preserv

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In this research, the effect of the date kernel flour (0%–20%), the extruder temperature (120–160°C), and the screw speed (120–220 rpm) as an independent variable on the physical characteristics (density, porosity, expansion index, color, texture properties) and the functional properties (water absorption index [WAI], water solubility index [WSI], moisture content, crude fiber, oil absorption index) of an expanded corn snack was evaluated. Increasing the date kernel flour from 0% to 20% reduced the moisture content, WAI, expansion index, and porosity and increased the WSI, oil absorption capacity, crude fiber, bulk density, and hardness of the samples. Increasing the screw speed increased the WSI, crude fiber, and reduced the hardness, WAI, and the expansion index. Increasing extruder temperature caused WSI, hardness. The incorporation of date kernel flour improves the nutritional composition of an extruded snack, especially crude fiber. Practical applications The extruded snacks with high amounts of calorie and fat and low amounts of protein and fiber are considered as unhealthy and harmful to the consumers. Today, the use of fibers in producing food has been taken into consideration because of their useful physiological and metabolic influences on the health of human beings. In this research, for first time, we aimed to optimize the percentage of date kernel powder to improve and increase the physicochemical properties of extruded snacks. According to our results, the incorporation of date kernel flour improves the nutritional composition of extruded snacks, especially crude fiber.

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Breeding Date Palm

Cited by 47 publications

References 57 publications

Induced in vitro adaptation for salt tolerance in date palm (Phoenix dactylifera L.) cultivar Khalas

Induced in vitro adaptation for salt tolerance in date palm (Phoenix dactylifera L.) cultivar Khalas

Potential Synergy between Spores of Metarhizium anisopliae and Plant Secondary Metabolite, 1-Chlorooctadecane for Effective Natural Acaricide Development

Optimization of physicochemical and functional properties of corn-based snacks containing date kernel flour

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