Breeding of ornamentals: success and technological status

Datta, Subodh Kumar

doi:10.1007/s13237-021-00368-x

Cited by 16 publications

(11 citation statements)

References 187 publications

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“…Aperture 3-(4) colpate, pollen size variations, big grain size PA 39.2µ (26-43) and ED 30.1µ (22)(23)(24)(25)(26)(27)(28)(29)(30)(31)(32)(33)(34)(35), P/A 130.23, small grain size PA 16.6µ (10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21)(22) and ED 13.9µ (9-20), P/A 119.42, pollen shape subprolate in equatorial view, exine reticulate, exine thickness 1.5µ in small grain, 3.2µ bigger grain, two distinct size bigger grains dark stained comparison to small grains, small baculi are visible inside the muri, highly reticulation (Fig. 5D & E).…”

Section: Mary Palmer Specialmentioning

confidence: 99%

“…The rst author cataloged different characteristics like plant growth habits (upright, semi-upright, spreading, drooping, climbing), length of internode (short, medium, long), young shoots (glabrous, tomentose, densely villous), thorn (long, slender, short slender), bract arrangement, bract color, bract size, bract apex, bract tip, bract base, ower size, leaf color, leaf size, leaf lamina, the shape of the leaf apex, petiole length, number of branches, number of leaves, number of thorns, thorn size, stem color, stomata index, moisture content of bracts, ower tube (shape, color, grade of pubescence, lament length, hair, star), the relative position of the stigma and anthers, pollen grain sterility and size, chlorophyll content of leaves, phenolic compounds in leaves and bracts, bract pigment, RAPD etc. for horto-taxonomical characterization of Bougainvillea (Datta 2021a(Datta , 2021b; Chatterjee et al 2007), and Chrysanthemum and rose (Datta 2015; Datta et al 2009).…”

mentioning

confidence: 99%

“…Golden Glow? ): Aperture 3-(4) colpate, pollen size variations, mini grain size PA19.0µ (16-22) and ED 16.5µ(14)(15)(16)(17)(18)(19), P/A 115.15, big grain size PA50.5µ (48-53) and ED 41.0µ(40- 42), P/A 123.17, big grains mostly 4-colpate, normal grain size PA 38.3µ(34)(35)(36)(37)(38)(39)(40)(41)(42)(43)(44) and ED 28.4µ (26-35),134.86, pollen shape subprolate in equatorial view, exine normal reticulate, angular, exine thickness 3.5µ (2.5 + 1.0), lumina are of different sizes, angular, muri made up of longar bacula, shorter bacula are present within lumina, top of muri smooth, bacula head at the angle of the muri are visible, 2nd set of…”

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Horto-Taxonomical studies on Bougainvillea: Pollen grain characters

Datta,

Datta

2024

Preprint

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Horto-taxonomical characterization of Bougainvillea is most important for the correct identification of cultivars and Plant Variety Rights (PVR). Different parameters have already been standardized for characterization. In Bougainvillea, there is always the development of new and novel varieties through classical breeding, sports, selection, and induced mutagenesis. The new varieties differ from the original variety mostly in one promising character for commercial utilization. All these factors have led to a lot of confusion in the identification of these cultivars. Many times the same cultivar has been differently named at different places and in some cases even the same name has been given to cultivars of different origins. This study aims to verify the taxonomic usefulness of the pollen grain morphological characters at a variety level. 83 cultivars were selected and pollen morphological characters were investigated and found a wide range of variations in pollen grain ornamentations at the variety level. The structural diversity in pollen structure within the varieties is recommended as an important tool in addition to other techniques for the identification and classification of the varieties.

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Section: Mary Palmer Specialmentioning

confidence: 99%

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confidence: 99%

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Horto-Taxonomical studies on Bougainvillea: Pollen grain characters

Datta,

Datta

2024

Preprint

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“…The global demand of flower increases continuously, because of this increasing demand and unavailability of natural sources different companies used tissue culture techniques for the fulfillment of demand and set up the culture laboratories in companies [7]. Gerbera, different species of Lilies, Rose, Carnations, Orchids, Spathyphyllum, Anthurium and Syngonium are high valued ornamental plants produced by different companies through tissue cultures [17]. Protocols of tissue cultures also developed for different fruit crops such as banana, strawberry, papaya, pineapple, and grapes [18].…”

Section: Production Of Plant Varieties Through Ptc Techniquementioning

confidence: 99%

Impact of Plant Tissue Culture (PTC) in Modern Agriculture

2022

MCDA

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Since last century, Plant Tissue Culture (PTC) exhibited enormous contribution in the science, mainly in last three to four decade, after the development of the newer technologies such as direct/indirect organogenesis, direct/indirect somatic embryogenesis, synthetic seed production, hybridization, somaclonal variation, haploid culture, and germplasm conservation. PTC is a biotechnological tool which contributes to the industries, horticulture, forestry and agricultural production in the way of crop improvement in terms of food, fodder, fibres, fuel and production of new varieties. This is one of the progressive steps towards commercialization, which will be helpful for the developing countries to fulfil the challenges of food availability of growing populations in a restricted land area.

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“…Moreover, the genetic background of new cultivars in marigolds must be diversified to reduce the risk or possible crises in the future and minimise vulnerability. New hybrids possessing an intense heterosis effect, with superior ornamental traits and market values, can be produced using interspecific hybridisation, e.g., between African marigolds and French marigolds [ 41 , 42 ]. In this way, the success of new breeding programmes in Tagetes depends on the genetic variation of the germplasm as well as on its efficient use [ 43 ].…”

Section: Introductionmentioning

confidence: 99%

Biological Traits and Genetic Relationships Amongst Cultivars of Three Species of Tagetes (Asteraceae)

Cicevan

Sestraș

Plazas

et al. 2022

Plants

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Marigolds (Tagetes spp.) are multifunctional flowering plants belonging to the Asteraceae family, well-known and widespread for their ornamental value and many other uses. In this study, morphological differences and genetic relationships among 21 cultivars of three species of marigold (Tagetes patula, T. erecta and T. tenuifolia) were analysed. Results have revealed obvious differences among genotypes, starting from the morphological characteristics of the seeds and their capacity to germinate to adult plant morphological characteristics, both between cultivars and species. The genotypic differences were manifested in considerable variation in the development of phenological stages and the main morphological traits of plants and flowers. PCA and hierarchical clustering analyses of morphological traits revealed a homogeneous grouping of cultivars within each species, except for Orion, belonging to T. patula, which was closer to T. erecta cultivars. A subset of 13 cultivars from the three species was subjected to SSR analysis, revealing considerable genetic diversity and good separation between T. patula on the one side and T. erecta and T. tenuifolia on the other. The observed heterozygosity was much lower than the expected heterozygosity, revealing a high degree of fixation. The results reveal that the three species evaluated have considerable morphological and genetic diversity, which has important implications for assessing genetic diversity, conserving germplasm and selecting parents for new breeding works in marigolds.

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Breeding of ornamentals: success and technological status

Cited by 16 publications

References 187 publications

Horto-Taxonomical studies on Bougainvillea: Pollen grain characters

Horto-Taxonomical studies on Bougainvillea: Pollen grain characters

Impact of Plant Tissue Culture (PTC) in Modern Agriculture

Biological Traits and Genetic Relationships Amongst Cultivars of Three Species of Tagetes (Asteraceae)

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