Abstract
Date palm offshoots culture is still the most common way for date palm propagation. So it's very necessary to getting methods for increasing offshoot survival rate. There are several factors that affecting offshoot rooting such as, duration of separating to planting time, offshoot weight, age, pests and diseases. This study was carried out on the date palm offshoots cultivar "Hayany" during the two successive seasons 2014/2015 and 2015/2016 in a private nursery of Om El-Reda area in Damietta governorate, Egypt. The aim of the current research was to increase the efficiency of the rooting process and to improve the percentage of success in the separated offshoots after planting. The effects of spraying root ball and leaves of offshoots with 500ml of auxins mixture (500ppm IBA + 500ppm NAA) and 2.5g/l licorice root extract alone or in combination and distilled water (control) on improving offshoots rooting were studied. The results showed that all treatments significantly improved rooting percentage, growth characteristics of roots and vegetative growth characteristics of the tested offshoots compared to the control. Anatomical studies indicated that there were obviously differences in the measured characters of cross section of root. Where the roots of the treated offshoots significantly increased the number and area of sclerenchyma bundles, diameter and length of phloem and diameter of the vascular region and significantly decreased the thickness of the cortex, the diameter of the pith and the length of xylem compared to the roots of the control. The combination treatment of 2.5g/l licorice root extract and auxin mixture (NAA & IBA) gave the highest responses.
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Claims 5
Claim · model-written summary
All licorice and auxin treatments significantly improved rooting percentage, root growth and vegetative growth of date palm offshoots compared with the control.
- Taxon
- Date palm
Phoenix dactyliferae0 - Treatment
- auxins mixture (500ppm IBA + 500ppm NAA) and 2.5g/l licorice root extracte1
- Outcome
- rooting percentage, growth characteristics of roots and vegetative growth characteristicse2
- Direction
- improvede2
- Comparator
- the controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Date palm offshoots culture is still the most common way for date palm propagation”
e1“spraying root ball and leaves of offshoots with 500ml of auxins mixture (500ppm IBA + 500ppm NAA) and 2.5g/l licorice root extract alone or in combination and distilled water (control)”
e2“all treatments significantly improved rooting percentage, growth characteristics of roots and vegetative growth characteristics of the tested offshoots compared to the control”
Claim · model-written summary
Treated date palm offshoots had a larger number and area of sclerenchyma bundles in roots than the control.
- Taxon
- Date palmPhoenix dactyliferae0
- Treatment
- auxins mixture (500ppm IBA + 500ppm NAA) and 2.5g/l licorice root extracte1
- Outcome
- number and area of sclerenchyma bundlese3
- Direction
- increasede3
- Comparator
- roots of the controle4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Date palm offshoots culture is still the most common way for date palm propagation”
e1“spraying root ball and leaves of offshoots with 500ml of auxins mixture (500ppm IBA + 500ppm NAA) and 2.5g/l licorice root extract alone or in combination and distilled water (control)”
e3“the roots of the treated offshoots significantly increased the number and area of sclerenchyma bundles, diameter and length of phloem and diameter of the vascular region”
e4“significantly decreased the thickness of the cortex, the diameter of the pith and the length of xylem compared to the roots of the control”
Claim · model-written summary
Treated date palm offshoots had a larger phloem diameter and length and vascular region diameter than the control.
- Taxon
- Date palmPhoenix dactyliferae0
- Treatment
- auxins mixture (500ppm IBA + 500ppm NAA) and 2.5g/l licorice root extracte1
- Outcome
- diameter and length of phloem and diameter of the vascular regione3
- Direction
- increasede3
- Comparator
- roots of the controle4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Date palm offshoots culture is still the most common way for date palm propagation”
e1“spraying root ball and leaves of offshoots with 500ml of auxins mixture (500ppm IBA + 500ppm NAA) and 2.5g/l licorice root extract alone or in combination and distilled water (control)”
e3“the roots of the treated offshoots significantly increased the number and area of sclerenchyma bundles, diameter and length of phloem and diameter of the vascular region”
e4“significantly decreased the thickness of the cortex, the diameter of the pith and the length of xylem compared to the roots of the control”
Claim · model-written summary
Treated date palm offshoots had a thinner cortex, smaller pith diameter and shorter xylem than the control.
- Taxon
- Date palmPhoenix dactyliferae0
- Treatment
- auxins mixture (500ppm IBA + 500ppm NAA) and 2.5g/l licorice root extracte1
- Outcome
- thickness of the cortex, the diameter of the pith and the length of xyleme4
- Direction
- decreasede4
- Comparator
- roots of the controle4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Date palm offshoots culture is still the most common way for date palm propagation”
e1“spraying root ball and leaves of offshoots with 500ml of auxins mixture (500ppm IBA + 500ppm NAA) and 2.5g/l licorice root extract alone or in combination and distilled water (control)”
e4“significantly decreased the thickness of the cortex, the diameter of the pith and the length of xylem compared to the roots of the control”
Claim · model-written summary
The combined licorice root extract and auxin mixture gave the highest responses in date palm offshoots.
- Taxon
- Date palmPhoenix dactyliferae0
- Treatment
- The combination treatment of 2.5g/l licorice root extract and auxin mixture (NAA & IBA)e5
- Outcome
- responsese5
- Direction
- higheste5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Date palm offshoots culture is still the most common way for date palm propagation”
e5“The combination treatment of 2.5g/l licorice root extract and auxin mixture (NAA & IBA) gave the highest responses”
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