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  • Oryza sativa  (2)
  • 36.40  (1)
  • 42.65. - k  (1)
  • Springer  (4)
  • American Physical Society (APS)
  • 1
    Electronic Resource
    Electronic Resource
    Surface spectroscopy (1982)
    Springer
    Applied physics 28 (1982), S. 229-232 
    Details
    ISSN: 1432-0649
    Keywords: 82.65 ; 68 ; 36.40 ; 78 ; 42.55
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00697849
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  • 2
    Electronic Resource
    Electronic Resource
    Dynamic studies on laser-induced gratings in azobenzene-doped polymer film (1995)
    Springer
    Applied physics 61 (1995), S. 377-384 
    Details
    ISSN: 1432-0649
    Keywords: 42.65. - k ; 78.66.Qn ; 82.30.Qt
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Studies on the dynamic behaviours of laser-induced gratings through two-photon absorption and single-photon absorption were carried out in an azobenzene-doped PMMA film. The experimental results exposed the structures of energy levels and the relaxation between them, in which different lifetimes of the triplet states of trans and cis isomers of azobenzene molecule were recognized. The temporal characteristics of the diffracted signal from the induced-gratings showed also the dynamic processes of the photoisomerization reaction between two isomers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01081538
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  • 3
    Electronic Resource
    Electronic Resource
    Isolation and genetic characterization of a fertility-restoring revertant induced from cytoplasmic male sterile rice (1996)
    Springer
    Euphytica 90 (1996), S. 17-23 
    Details
    ISSN: 1573-5060
    Keywords: Oryza sativa ; cytoplasmic male sterility (CMS) ; fertility-restoring reversion ; radiation mutation ; genetic analysis, rice
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary A male fertile revertant was isolated from M1 of a cytoplasmic male sterile indica rice line II-32A, the dry seeds of which were treated with 60Co-γ rays at a dose of 290 Gy. The acquired revertant T24 was morphologically and agronomically similar to II-32B, the maintainer of II-32A. Testcrosses of the revertant with II-32A and Zhenshan 97A showed that the revertant was able to restore the fertility of CMS lines. Genetic analysis of the progenies between T24 and II-32A, Zhenshan 97A XieqingzaoA and DZhenshan 97A, which have different cytoplasms, showed that the fertility restoration of four CMS lines by T24 involved one nuclear gene, indicating that T24 was a result of the mutation of one nuclear gene. The mechanism of the restoration of CMS line by T24 was obviously different from other restorers such as Minghui 63 and 20964, which were shown to behave in two gene mode in fertility restoration. The discovery of the revertant T24 contributes to the understanding of CMS and fertility restoration of CMS in rice. The T24 and its parent II-32A may constitute a pair of near isogenic lines for the restoring gene, which should be valuable materials for molecular genetic analysis of CMS.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00025155
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  • 4
    Electronic Resource
    Electronic Resource
    A novel environment-induced genic male sterile (EGMS) mutant in indica rice (1994)
    Springer
    Euphytica 76 (1994), S. 89-96 
    Details
    ISSN: 1573-5060
    Keywords: Indica rice ; Oryza sativa ; radiation mutagenesis ; thermo-sensitive male sterility ; pollen ; vigour
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Male-sterile mutants were isolated from M2 and M3 generations of indica rice variety 26 Zhaizao, dry seeds of which had been exposed to 60Co-γ rays at a dose of 290 Gy. The mutants were planted in early season and ratooned in late season for two successive years for identification of fertility conversion in different growing seasons. One of the mutant lines was further observed in a growth chamber and in the field. Results showed that daily average temperature might be the major factor conditioning the male fertility conversion at a moderate daylength. The critical temperature for the male fertility conversion of the mutant grown under 12.5 h and 14.0 h daylength is about 23°C, below which the plant becomes completely male sterile. Its male fertility conversion character differs from other EGMS lines so far developed. The performance of the hybrids between the mutant and some other indica varieties demonstrated its good combining ability and its potential value in hybrid rice production. The obtained mutant line still sheds KI-stainable pollen grains under male sterilizing conditions. Nevertheless, pollen grains shed from the male sterile plants were much more vulnerable than from normal plants. At sucrose concentration below 1.5 M, the pollen grains from the mutant grown under male sterilizing conditions almost completely broke down, while above 1.5 M they became plasmolysed and shrunken. This is indicative of poor development of the membrane and walls of the pollen grains from the male sterile mutant, causing the pollen grains to be unfunctional. NBT test also clarified the abortion of the pollen grains from the mutant, which were formed in the male sterilizing environment.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00024024
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