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Comparative study of somatic embryogenesis from immature and mature embryos and organogenesis from leaf-base of Triticale

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Abstract

Immature and mature zygotic embryos of hexaploid, Triticale var. DT-46 formed an embryogenic callus, with subsequent somatic embryo formation upon subculture to MS (Murashige and Skoog, 1962) or N6 (Chu et al., 1975) nutrient medium supplemented with various concentrations (9.0–22.5 μM) of 2,4-dichlorophenoxyacetic acid (2,4-D). Of the two types of explants, embryogenic tissue from immature embryos responded at a higher frequency, to form somatic embryos over the callus surface. Leaf-base segment cultured on to 2,4-D-containing medium formed a tissue which did not form somatic embryos and instead differentiated into shoot-buds. N6 medium proved to be more effective than MS in support of somatic embryogenesis or shoot-bud formation. Regeneration of plantlets occurred on 2,4-D-free basal medium. These in vitro-formed plantlets were successfully transferred to soil and set seed.

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  1. Department of Botany, University of Delhi, Delhi, 110007, India

    Vikrant & A. Rashid

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  1. Vikrant
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  2. A. Rashid
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Vikrant, Rashid, A. Comparative study of somatic embryogenesis from immature and mature embryos and organogenesis from leaf-base of Triticale. Plant Cell, Tissue and Organ Culture 64, 33–38 (2001). https://doi.org/10.1023/A:1010627630651

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