Variability of morphological characters among ornamental sunflower collection

Mladenović, Emina; Cvejić, Sandra; Jocić, Siniša; Čukanović, Jelena; Jocković, Milan; Malidža, Goran

doi:10.2298/gensr1702573m

Cited by 9 publications

(6 citation statements)

References 9 publications

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“…Six generations of selfing were carried out to insure the genetic purity of the developed genotypes. The genotypes were selected based on the flower characteristics and their single-stem properties (Mladenović et al 2017). The selected genotypes had a yellow, lemon, or orange colour of the ray flower.…”

Section: Methodsmentioning

confidence: 99%

Effect of plant density on stem and flower quality of single-stem ornamental sunflower genotypes

Mladenović¹,

Cvejić²,

Jocić³

et al. 2020

Hortic. Sci.

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The aim of this research was to determine the optimum planting density for the production of high-quality cut flowers with desirable characteristics. 25 single-stem ornamental sunflower genotypes were planted at different densities and evaluated for flowering time, flower diameter, and stem circumference and length over a two-year production cycle. Three spacing patterns were used: 25 × 25 cm, 30 × 30 cm, and 70 × 30 cm, which led to the planting densities of 160 000, 90 000, and 60 000 plants/ha, respectively. The plant density had the most important effect on the stem circumference, flower diameter, and stem length (total variation 52, 60, and 58%, AMMI analysis) and a small effect on the flowering time (total variation 1%, AMMI analysis). Based on environment-focused scaling, all high-density environments could be suitable for the production of single-stem sunflower genotypes. The results demonstrated the adaptation of several sunflower genotypes G9, G11, G12, G21, and G22 as the most suitable based on the optimum flower diameter, stem circumference, and stem length. These results may lead to progress in growing ornamental sunflowers as a cut flower.

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Section: Methodsmentioning

confidence: 99%

Effect of plant density on stem and flower quality of single-stem ornamental sunflower genotypes

Mladenović¹,

Cvejić²,

Jocić³

et al. 2020

Hortic. Sci.

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“…The only inbred line intended for bird feed, line 33, was in the separate group among the four conventional inbred and one HO line. Specific traits of inbred lines intended for different purposes are the presence of branching which frequently occurs in ornamental sunflower genotypes and white color of seed in the only inbred line intended for bird feed (LIN, 2005;MLADENOVIĆ et al, 2017).…”

Section: Resultsmentioning

confidence: 99%

Variability of morphological traits in sunflower inbred lines

et al. 2020

Self Cite

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Except agronomic important traits, great diversity in sunflower is present in morphological traits which are very useful in breeding studies. The main objective of the paper was to determine genetic diversity among the 110 inbred lines in the collection of Institute of Field and Vegetable Crops Novi Sad (IFVCNS) by screening 34 morphological traits according to a list of descriptors of the International Union for the Protection of New Varieties of Plants (UPOV) as to conduct the Distinctness, Uniformity and Stability Test (DUS). The diversity of morphological traits was estimated by Shannon diversity index (H?) and the diversity of sunflower inbred lines was performed by homogeneity analysis (HOMALS) as well as discriminatory power of the traits. The values of the traits in Shannon diversity index were the highest (H?=0.99) for height of the tip of the blade compared to insertion of petiole and bract position, while branching, head shape and seed color showed low diversity (H?>0.1). The uniformity of inbred lines distribution determined discriminative power of descriptors. Disk flower anthocyanin coloration of stigma, hypocotyl anthocyanin coloration and intensity, leaf blistering, leaf serration, seed stripes on and between the margins showed the strongest discriminatory power. According to these six traits, the collection of inbred lines was divided into two main groups and three subgroups which better explained the relationships among the various inbred lines. Inbred lines showed the great variability of morphological traits in the whole collection and also among the inbred lines from the same type of use.

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“…The cultivated populations of E. fulgens in greenhouse showed a morphometric variation in vegetative structures, similar to the wild-growing groups, which suggests that these characteristics are highly stable in this species. In most studies of ornamental plants, phenotypic differences in structures with aesthetic or commercial value are evaluated; for instance, stem length, firmness, and flower number, size, colour, and odor in Peruvian lily [15]; branch number and length, flowering duration, height, disc and ligulate flowers, and central head diameter in sunflower [14]; and growth habit, ramification, foliar blade, and fruit shape, size, and colour in ornamental gourds to obtain ideal genotypes for cut flower, bouquets, arrangements, or pots [16]. Cultivation of E. fulgens in greenhouse demonstrated that it adapts and develops well under controlled conditions.…”

Section: Morphological Variation In Cultivated Populationsmentioning

confidence: 99%

“…To date, studies in which morphological variation has been evaluated between cultivated ornamental plants and their wild relatives are scarce worldwide [11,12]. Most research has focused on characterizing different genotypes of cultivated plants or with some level of handling [13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Morphological Variation in Scarlet Plume (Euphorbia fulgens Karw ex Klotzsch, Euphorbiaceae), an Underutilized Ornamental Resource of Mexico with Global Importance

Pérez-Nicolás

León

Alía-Tejacal

et al. 2021

Plants

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Morphological variation is useful in conservation and genetic improvement programs. Euphorbia fulgens, a range-restricted local endemic species of Mexico, is used locally during the altars in the festivities of different saints and is also cultivated as an ornamental plant mainly in Europe. Thus, in the present study, morphological variation was evaluated in wild populations and cultivated populations. Characterization of 90 individuals from three wild populations (the only ones recorded to date) was done by measuring 30 morphological traits both vegetative and reproductive. Thereafter, seeds were collected, and established under greenhouse conditions, and 39 morphometric variables were evaluated in adult plants. An analysis of variance (ANOVA) was done for wild and cultivated groups independently, and when significant differences were found, Tukey’s comparison of means was applied (p < 0.05). To identify the traits responsible for the differences between wild and cultivated groups, a linear discriminant analysis (LDA) was conducted. Morphological variation was found among wild populations, and this variation decreased in cultivated populations, mainly in reproductive structures. The LDA separated the wild populations from the cultivated groups, according to inflorescence length, petiole length/blade length ratio, and leaf roundness. The variables that determined the separation of individuals between wild and cultivated populations were cyme number, foliar Feret diameter, and inflorescence length, variables that can be important for breeding strategies and artificial selection.

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Variability of morphological characters among ornamental sunflower collection

Cited by 9 publications

References 9 publications

Effect of plant density on stem and flower quality of single-stem ornamental sunflower genotypes

Effect of plant density on stem and flower quality of single-stem ornamental sunflower genotypes

Variability of morphological traits in sunflower inbred lines

Morphological Variation in Scarlet Plume (Euphorbia fulgens Karw ex Klotzsch, Euphorbiaceae), an Underutilized Ornamental Resource of Mexico with Global Importance

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