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This article in CS

  1. Vol. 7 No. 5, p. 522-523
     
    Received: Mar 30, 1967
    Published: Sept, 1967


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doi:10.2135/cropsci1967.0011183X000700050034x

Induction of Aneuploids in Hexaploid Oats, Avena sativa L., Through X-Irradiation1

  1. C. Mannephong and
  2. K. Sadanaga2

Abstract

Abstract

Aneuploids were induced in the hexaploid oat variety ‘Cherokee’ through X-radiation (300r, 500r, 700r) of panicles in the pre-anthesis stage. The X1 and control plants were examined for abnormal tetrads (micronuclei in tetrads), and plants with more than 15% abnormal tetrads were classified abnormal and saved as potential sources of aneuploids and translocations. The percentage of abnormal plants was related to the X-ray treatments. Although the percentage (6.4) of monosomics was highest in the 700r treatment, we conclude that the 300r treatment (4.9%) was most efficient in producing monosomics since it was associated with the lowest percentage of translocations

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