Absence of individual chromosomes and radiation sensitivity of bread wheat
Seeds of twenty different monosomics of bread wheat of the variety Chinese Spring were treated with different doses of x rays to determine LD-50. Dormant seeds with an embryo moisture content of 4 to 5% were irradiated with doses from 5000 to 50000 r. The seeds were sown immediately after irradiation. Germination and survival counts were made 15 days after sowing. The LD-50 rates found are tabulated and show that the monosomics are more radiosensitive than the disonics. Monosomtics for D genome chromosomes have generally a higher LD-50 dosage in comparison with A and B genomes. (J.S.R.)
- Research Organization:
- Indian Agricultural Research Inst., New Delhi
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-15-023320
- OSTI ID:
- 4040998
- Journal Information:
- Naturwissenschaften, Journal Name: Naturwissenschaften Journal Issue: 9 Vol. 48; ISSN 0028-1042
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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