THE EFFECT OF GAMMA IRRADIATION OF SEEDS OF WHEAT ON RADIATION SENSITIVITY OF EXPERIMENTAL PLANTS

Journal Article · Sun Dec 01 04:00:00 EST 1963 · Doklady Akademii Nauk SSSR (U.S.S.R.) English translation currently published in a number of subject-oriented journals

OSTI ID:4085928

Fonshtein, L M

Dry seeds of spring wheat were gamma irradiated (Co/sup 60/) with 4-, 8- , and 16-kr doses and planted; the seeds of the descendants were also planted, some after irradiation with 12- or 16-kr doses. Viability of the first- generation seeds was not significantly decreased by 4 kr, was decreased noticeably with 8 kr, and both viability and plant development were sharply decreased with 16 kr. When the seeds of this generation were planted, survival and plant height were lower for the irradiated than for the controls, especially when the seeds came from 16-kr irradiated parents. However, descendants of plants receiving 4- and 8kr doses in the first generation and 12- and 16-kr doses in the second generation were the same height, with some protective effect of the first irradiation being noted. A smaller percentage of the seeds receiving 4 and 8 kr showed chromosome aberration, also indicative of protective effect. The results may be explained by an increase in exchange of substances under the effect of the irradiation, these being very basic in nature and resulting in greater radiation stability of the descendants. Selection, resulting in survival of the most radioresistant, may also be very important. Preliminary irradiation as a means of increasing resistance of plants and animals to subsequent irradiation cannot be a direct method of radiation protection. (TTT)

• Research Organization: Inst. of Genetics, Academy of Sciences, USSR
• NSA Number: NSA-18-009850
• OSTI ID: 4085928
• Journal Information: Doklady Akademii Nauk SSSR (U.S.S.R.) English translation currently published in a number of subject-oriented journals, Journal Name: Doklady Akademii Nauk SSSR (U.S.S.R.) English translation currently published in a number of subject-oriented journals Vol. Vol: 153; ISSN DANKA
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

ACIDITY
BIOLOGY AND MEDICINE
CEREALS
CHROMOSOMES
COBALT 60
GAMMA RADIATION
GENETICS
METABOLISM
RADIATION DOSES
RADIATION EFFECTS
RADIATION INJURIES
RADIATION PROTECTION
RADIOSENSITIVITY
SEEDS
SURVIVAL TIME
VARIATIONS
WHEAT