ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Radiation-induced hyperdiploidy inHyoscyamus niger L (1985)
    Springer
    Cellular and molecular life sciences 41 (1985), S. 1079-1080 
    Details
    ISSN: 1420-9071
    Keywords: Hyperdiploid plant ; Hyoscyamus niger ; radiation-induced mutant
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary A hyperdiploid plant type, approaching the triploid chromosome number, and representing possibly a high level of tetrasomy, was recorded in the progeny of a gamma ray-induced unbranched desynaptic mutant in the M4 generation. Its meiotic behavior and its possible importance for deriving diverse hyperdiploid lines from desynaptic mutants are outlined.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01952153
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Induced polygenic changes occurring simultaneously with major gene changes in black henbane (Hyoscyamus niger L.) (1992)
    Springer
    Theoretical and applied genetics 85 (1992), S. 445-450 
    Details
    ISSN: 1432-2242
    Keywords: Hyoscyamus niger ; Macromutants ; Polygenic changes ; gca effects ; Average heterosis ; Mutant heterosis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Two macromutants [unbranched (Ub) and restricted branched (Rb)], one point mutation [yellow flowerd (‘Ada’)] and two flowering variants (early and late) were isolated in the M2 generation of gammairradiated progenies of black henbane (H. niger) — a medicinal plant belonging to family Solanaceae. These major gene changes were coupled with simultaneous changes in several polygenic systems conditioning continuous variation for flowering time, plant height, numbers of shoots and leaves, biomass and crude drug content. Such quantitative variation in qualitative mutants were measured for both per se means and cross-bred performance in terms of: (1) shifts in univariate means, (2) changes in pooled divergence, (3) alterations in gca effects, and (4) changes in heterotic capacity. The mutants were significantly divergent from the parental base for all the six metric traits, both individually as well as collectively. Divergence among mutants was wider (D2 = 1491 to 11 469) than that for mutants versus source parent (D2 = 117 to 7120). Conspicuous alterations in both the nature and the magnitude of the gca effects associated with all mutants, except L-2013 (late flowering), relative to the parental base were observed for all of the metric traits examined (gca ∼- per se means). Similarly, the mutants manifested greater heterotic potential than the parental base. This is even more strongly reflected in mutant x mutant hybrids for all of the characters. The amount of economic heterosis for diverse traits followed the pattern: crude drug 〉 biomass 〉 flowering time ∼- plant height 〉 number of shoots ∼- number of leaves.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00222326
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Potential of gamma radiation enhancing the biosynthesis of tropane alkaloids in black henbane (Hyoscyamus niger L.) (1989)
    Springer
    Euphytica 40 (1989), S. 253-258 
    Details
    ISSN: 1573-5060
    Keywords: Hyoscyamus niger ; black henbane ; mutation breeding ; genetic improvement ; tropane alkaloids
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary A productive yellow flowered mutant with high tropane alkaloid content was isolated in the M2 generation of gamma irradiated (Co60 at 40 kr) progenies ofHyoscyamus niger. Mutant progenies, on an average, were capable of synthetising more than twice crude alkaloid (0.147% to 0.221%) in M3 through M6 generations compared to the parental control (0.065 to 0.106%). In pilot scale trial (M7), two elite lines, Y-15 and Y-17 were found to contain 0.390% and 0.318% crude drug in contrast to 0.211% in an improved inbred used as control. However, owing to conducive plant morphology, Y-17 registered high yield of dry biomass, hence gave more than double yield of crude drug than the improved control (inbred) (23 kg/ha against 11 kg/ha). Also being superior in hyoscyamine and hyoscine yields, it was redesignated as var.Aela, and released for commercial cultivation in India, thus signifying the efficiency of radiation breeding for crop improvement.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00024520
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...