Abstract
The present study was accomplished to study the effect of fourteen cultivars (Keitt, Ewais, White Succari, Tommy Atkins, Fajri Klan, Zebda, Alphonso, Sedeek, Naomi, Mesk, Baladi Dabsha, Baladi Arnaba, Cobania and Totapuri) of Mangifera indica L. leaves aqueous extracts (MILAE) on germination and some growth parameters as well as seedling protein profile of Hibiscus esculentus L. (okra seeds) in mixed cropping system. The study was extented to characterize and discriminate among the aforementioned cultivars. The allelopathic potential of fourteen cultivars of M. indica leaves aqueous extracts (MILAE) on germination efficiency and growth parameters of H. esculantus L. seeds (as a recipient bioassay material) was completely studied. Hypocotyl length (HL) was more sensitive than radicle length (RL) for all studied cultivars. At the all concentrations level, Mesk cultivar exerted the highest allelopathic effect, while Totapuri cultivar showed the lowest one on the germination percentage (GP), inhibition percentage (IP), the time to get 50% germination (T50), mean germination time (MGT), germination energy (GE), seed germination index (SGI), emergence percentage (EP), mean emergence time (MET), seedling emergence index (EI), seedling vigour index (SVI), hypocotyl (HL) and radicle (RL) lengths, seedling fresh (SFW) and dry (SDW) weights.Seedling protein electrophoresis data revealed that Tommy Atkins cultivar attained the minimum values for both the number of bands and the percentage of polymorphism, 6 bands and 27%, respectively. On the other hand, the maximum values were achieved from both Naomi and Totapuri cultivars, 11 bands and 51%. Reversibly, the genomic template stability (GTS %) oscillated from 32% in Cobania cultivar to 64% in specimen Tommy Atkins cultivar. The resulted dendrograms by using allelopathic and molecular data as well as seedling protein electophoresis ascertains three aggregations. The first assembly includes Sedeek, Naomi and Mesk cultivars. The second gathers Keitt and Ewais cultivars. While, the third clusters Fajri Klan, Zebda and Alphonso cultivars.
Highlights
Nowadays, there is a large move from monocropping to polycropping practices, in almost of the agricultural ecosystems along the world
Petri-dish experiment demonstrated that the germination percentage (GP) and emergence percentage (EP) of H. esculentus was significantly (p ≤ 0.05) affected upon applying different concentration levels of fourteen cultivars of M. indica L. leaves aqueous extract (MILAE)
In mean emergence time (MET) a notable increase was attained along the higher M. indica leaves aqueous extract (MILAE) concentration (8%), in MET the values were increased in Mesk cultivar to a maximum values of about 11.1
Summary
There is a large move from monocropping to polycropping practices, in almost of the agricultural ecosystems along the world. One should be aware by the chemical interfering between the mixed crops in order to avoid undesirable potential effects of one crop on the other. El-Kenany et al (2014) assessed the probable effects of Nigella sativa L. seeds on the germination and growth alongside nutrient, metabolite and pigment content of Lupinus termis L. in mixed cropping system of the two crops. Multiple cropping is common practice in subtropical and tropical regions (Young et al, 1989; El-Kenany et al, 2014). Because there is a large move from mono-cropping to multiple cropping practices, one should be aware by the chemical interfering between the mixed crops in order to avoid undesirable potential effects of some crop on the others. A little is known about the allelopathic interaction of intercropped plants in mixed farming systems
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
