Computer-generated keys to the flora of Egypt. 6. The Boraginaceae

El-Gazzar, Adel; El-Ghamery, Abbas A.; Elsaied, Albaraa; Khattab, A.; El-Kady, Alaa A.

doi:10.1016/j.aoas.2015.03.002

Cited by 7 publications

(5 citation statements)

References 27 publications

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“…and lupins (Lupinus spp.). Despite the huge range of variation in morphological features of their vegetative parts, members of the Papilionoideae are easily distinguishable from the other two subfamilies of the Leguminosae (Mimosoideae and Caesalpinioideae) by numerous morphological attributes including the papilionoid structure of the corolla, asymmetrical seeds, ovate-elliptical cotyledons, campylotropous ovules and the embryo axis is curved or a short spiral (Isely 1955 andWatson and Dallwitz 1992;onwards, Kirkbride et al 2003;APG 2012;El-Gazzar et al 2012). This clear distinction of the Papilionoideae from the rest of the Leguminosae gained substantial support from phylogenetic studies Wink 1996-1997;Doyle et al 1997;Kajita et al 2001;Doyle and Luckow 2003;Wojciechowski et al 2004;Champagne et al 2007).…”

Section: Introductionmentioning

confidence: 99%

Classification of the Leguminosae-<i>Papilionoideae</i>: A Numerical Re-assessment

et al. 2013

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The subdivision of the Leguminosae-Papilionoideae into taxa of lower rank was subject for major discrepancies between traditional classifications while more recent phylogenetic studies provided no decisive answer to this problem. As a contribution towards resolving this situation, 81 morphological characters were recorded comparatively for 226 species and infra-specific taxa belonging to 75 genera representing 21 of the 32 tribes currently recognized in this subfamily. The data matrix was subjected to cluster analysis using the Sørensen distance measure and Ward's clustering method of the PC-ord version-5 package of programs for Windows. This combination was selected from among the 56 combinations available in this package because it produced the taxonomically most feasible arrangement of the genera and species. The 75 genera are divided into two main groups A and B, whose recognition requires little more than the re-alignment of a few genera to resemble tribes 1-18 (Sophoreae to Hedysareae) and tribes 19-32 (Loteae to Genisteae), respectively, in the currently accepted classification. Only six of the 21 tribes represented by two or more genera seem sufficiently robust as the genera representing each of them hold together in only one of the two major groups A and B. Of the 29 genera represented by more than one species each 17, 7 and 5 are taxonomically coherent, nearly coherent and incoherent, respectively. The currently accepted circumscription and inter-relationships among the disrupted tribes and genera are in need of much detailed investigation.

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Section: Introductionmentioning

confidence: 99%

Classification of the Leguminosae-<i>Papilionoideae</i>: A Numerical Re-assessment

et al. 2013

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“…Such programs are highly flexible and the keys produced by them lead consistently to easily repeatable results. They were previously used to generate much improved keys to various groups in the flora of Egypt (El-Gazzar et al, 2008b, 2009a, 2009b, 2012b, 2019.…”

Section: And Boulosmentioning

confidence: 99%

Computer-generated Keys to the Flora of Egypt. 9. The Spiny Taxa of Asteraceae

et al. 2018

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M ANUALLy constructed keys for identification of plants leave much to be desired. Keys to the Asteraceae of Egypt are no exception and depend largely on floral minutiae while vegetative morphology is a much richer source of characters suitable for key construction. Inspection of some 3000 specimens showed that the most obvious feature of the plants is the presence or absence of spines on leaves, leaf axils, stem internodes, margins of stem wings and phyllaries. This feature was selected to divide species of this family into two main groups: spiny and spineless. Nomenclature of all taxa was updated and those with names reduced to synonyms of others were eliminated. This article deals only with the 65 species belonging to 20 genera of the first group. A total of 51 characters describing variation in spine distribution and other characters of vegetative morphology were recorded for each of the 65 spiny species and the key-generating program DELTA was applied to the data matrix. The result is a much improved automated key, a detailed description of every species in terms of the entire set of 51 characters, and the same description but in terms of the serial numbers assigned to these characters and their states.

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“…Of particular importance is the stabilization of grain production depending on weather conditions in different years [9][10][11]. The use and implementation of new innovative technologies makes it possible to increase the yield and quality of grain crops in terms of obtaining high guaranteed yields [12,13].…”

Section: Introductionmentioning

confidence: 99%

Stimulation of growth processes and productivity of grain crops in the forest-steppe of Western Siberia

Albert,

Galeev,

Petrov

et al. 2024

E3S Web Conf.

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The results of three years of research (2021-2023) are presented to study the effectiveness of pre-sowing treatment of seeds of grain crops (spring wheat, spring barley and oats) to regulate growth and development, increase yields and improve product quality. The research was carried out on leached chernozem of the Novosibirsk Ob region (JSC Irmen breeding plant, Ordynsky district, Novosibirsk region) and on gray forest soil (TPP “Michurintsev Garden”). The varieties of grain crops (spring wheat Licamero, spring barley Paustian and oats – Max) were studied. An increase in leaf area parameters was established against the background of the use of preparations for treating seeds with subsequent spraying of plants in the tillering phase with the following growth regulators Siliplant 0.01% (based on chelate forms), Epin-Extra 0.005%, Zircon 0.005%, Toro Combi 0.02% solution and Turmax 0.025% (chelate forms of macro and microelements). It was shown that the use of growth regulators increased the rate of growth and development, productivity and product quality. It was statistically established that the yield of grain crops depended on the elements - 38%, the crop under study - 31%, growth regulators and year conditions by 24%.

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Computer-generated keys to the flora of Egypt. 6. The Boraginaceae

Cited by 7 publications

References 27 publications

Classification of the Leguminosae-<i>Papilionoideae</i>: A Numerical Re-assessment

Classification of the Leguminosae-<i>Papilionoideae</i>: A Numerical Re-assessment

Computer-generated Keys to the Flora of Egypt. 9. The Spiny Taxa of Asteraceae

Stimulation of growth processes and productivity of grain crops in the forest-steppe of Western Siberia

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