Abstract
THE Tokyo group1 tested gibberellin on tobacco inflorescences and found them to grow faster and to elongate further; elongation has so far been the most striking plant response to treatment with gibberellins. Floral differentiation, including parthenocarpy, however, has been observed by several workers, among whom are Bonde2, Wittwer and Bukovac3, Yakar-Olgun4 and Zatyko5. Phatak et al.6 reported that gibberellic acid induced the formation of anthers and the development of pollen in a stamenless tomato mutant. This type of differentiation and development of floral parts is very important in propagating homozygous recessive mutants which involve sterility in one of the sexes in an amphimictic plant species. I describe here my attempts to restore fertility in a spontaneous male-sterile mutant of the barley variety ‘Maris Baldric’.
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References
Yabuta, T., Sumiki, Y., Aso, K., and Hayashi, T., J. Agr. Chem. Soc. Japan, 17 (8), 673 (1941).
Bonde, E. K., Physiol. Plant, 19, 356 (1966).
Wittwer, S. H., and Bukovac, M. J., Plant Physiol., 32, 39 (1957).
Yakar-Olgun, N., Istanbul Univ. Fak. Mecmuasi Ser. B. Sci. Nat., 27, 19 (1962).
Zatyko, J. N., and Simon, I., Zeitschrift für Pflanz., 52, 262 (1964).
Phatak, S. C., Wittwer, S. H., Honma, S., and Bukovac, M. J., Nature, 209, 635 (1965).
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KASEMBE, J. Phenotypic Restoration of Fertility in a Male-sterile Mutant by Treatment with Gibberellic Acid. Nature 215, 668 (1967). https://doi.org/10.1038/215668a0
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DOI: https://doi.org/10.1038/215668a0
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