H. Keneshloo; H. Mirzaie-Nodoushan; F. Asadicorom; U. Achak
Abstract
Moringa peregrina (Forssk.) Fiori is one of the neglected Moringa species which is growing in a wide area of southeast part of Iran. The research was carried out by studying seedling growth parameters on 310 Moringa peregrina seedlings to investigate interrelationship between the growth parameters and ...
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Moringa peregrina (Forssk.) Fiori is one of the neglected Moringa species which is growing in a wide area of southeast part of Iran. The research was carried out by studying seedling growth parameters on 310 Moringa peregrina seedlings to investigate interrelationship between the growth parameters and their possible effects on seedling growth. Therefore, seed was collected from 21 single plants of the species across its habitats in southeast part of the country. Seedlings were grown in greenhouse conditions on which several seedling growth parameters were recorded after seedling establishment. The recorded data were analyzed based on completely randomized design model to assess the differences between the mother plants. To confirm the differences between the sampled single trees, all the possible paired correlation coefficients were estimated. To select the parameters specified by multiple regression analysis, path analysis was performed to investigate the direct and indirect relations between the independent parameters and plant height as the dependent parameter. Principal components analysis was also used to assess the interrelationship between the growth parameters. To classify the progenies of the single plants, the first and second components of the analysis were plotted and the results of the plot were compared to the results of cluster analysis. All the recorded traits showed a significant positive correlation with seedling height. Dividing the phenotypic correlation to the direct and indirect effects revealed that several traits affect the dependent parameters positively direct and negatively indirect, through other recorded growth parameters. Traits such as leaflet width with a positive simple correlation to the seedling height, showed a negative direct effect on the dependent parameter.
Z. Nazari; H. Mirzaie-Nodoushan; Gh. Bakhshi-Khaniki; F. Asadicorom
Abstract
Moringa peregrina (Forssk.) Fiori is an important neglected plant species, with medicinal, industrial and nutritional values, growing in South-East part of Iran. In spite of its high importance in various points of views, the species is not paid enough attention regarding various biologic aspects such ...
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Moringa peregrina (Forssk.) Fiori is an important neglected plant species, with medicinal, industrial and nutritional values, growing in South-East part of Iran. In spite of its high importance in various points of views, the species is not paid enough attention regarding various biologic aspects such as karyotypic characteristics. Four plant populations as well as two tissue cultured samples of the species were used for karyotypic studies. Chromosome dimensions were recorded on which several statistics were estimated for karyotypic asymmetric comparisons on the mentioned plant populations and samples. The recorded karyotypic data were analyzed by nested and factorial statistic models. Chromosomes counting reviled the constant diploid karyotype with 2n=2x=28 chromosomes for all of the studied samples. Analysis of variance showed significant differences (α=1%) between the plant populations and samples based on the recorded karyotypic characteristics. Several anioploid cells were also recorded. It was concluded that the species contains small chromosomes, so that general chromosome means of the studied samples varied between 1.19 to 2.1 μ. The longest genome (51.2μ) belonged to Kenshki sample which was tissue culture based sample. The shortest genome (33.3μ) belonged to Garhoon plant population. In other words tissue culture based samples grouped in distinct classes compared to other studied plant populations. Chanf plant population showed the most symmetric karyotype (45%) based on TF%, whereas, Kenshki plant population revealed the most asymmetric karyotype (41%). DRL statistic and karyotype formula also clarified the mentioned symmetry conditions.
F. Asadicorom; H. Mirzaie-Nodoushan; M. Emam; Gh. Bakhshi-Khaniki; H. Keneshloo; M.Y. Achak
Abstract
Plant responses to micro propagation may have genetic basis with quantitative or qualitative inheritance modes. Investigating of variations within and between populations of drumstick (Moringa peregrina (Forssk.) Fiori) through culturing immature seeds and embryos, for responding to micro propagation, ...
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Plant responses to micro propagation may have genetic basis with quantitative or qualitative inheritance modes. Investigating of variations within and between populations of drumstick (Moringa peregrina (Forssk.) Fiori) through culturing immature seeds and embryos, for responding to micro propagation, were the main objectives of this study. A high number of immature seeds and embryos were collected from six different habitats of the species located at South part of Sistan and Baluchestan. These were aseptically cultured on 7 different mediums. A number of morphological traits were recorded on the growing genotypes for two successive times. The studied populations showed significant differences based on the length and width of the collected immature seeds. But they were not significantly different based on several other characteristics in the first time records. Number of lateral roots and shoot length were significantly different between the populations at this stage. There were significant differences between the studied culturing media based on several studied characters. Regarding significant interactions between the population and the culture media, WPM was the best for growing more mature seeds (collected from Bent and Chanf). Whereas, less mature seeds grown better in the media with higher calcium sources. The differences between the populations were revealed for number of root, root length and plantlet length based on the second time records. Significant interaction between the populations and media in several recorded characters showed that the alteration of the response of the plant populations were not similar across the media.
