Abstract
Dry seeds of Lactuca sativa cultivars and Cichorium intybus were irradiated with 30 kR from a 60Co source, and were grown side by side with controls. Measurements of the achenes borne on the mature M1 plants showed that on the whole the achene size was reduced, the number of ribs on the achene, the width of the ribs and of the furrows between the ribs, the cell numbers composing them, the mean height of the carpopodium, and cell sizes, were reduced. Out of 15 sets of scores at 30 kR, two-thirds were significantly different from the controls on a t-test. These results are in conformity with the hypothesis that downgrade mutations of a variety of genes concerned with growth and development would, in sum, result in such reductions. The radiation-sensitive L. serriola showed greater reductions than the other taxa.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
