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Effects of Thermal Neutrons on Dormant Seeds of Sorghum vulgare Per 1
Author(s) -
Kaukis Karl,
Webster O. J.
Publication year - 1956
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1956.00021962004800090005x
Subject(s) - seedling , anthesis , neutron temperature , sorghum , irradiation , sterility , horticulture , biology , germination , agronomy , radiation , neutron , radiochemistry , botany , chemistry , cultivar , physics , nuclear physics
Synopsis Studies on sorghum seed irradiated with X‐rays and thermal neutrons produced the following general results: The height of seedlings from irradiated seed was reduced with increases in dosage. Plants grown from irradiated seed exhibited depressed stature. All radiation dosages delayed the anthesis and shortened the blooming period. The average sterility ranged from 12.5 to 75.8% in the lowest and the highest radiation doses, respectively. The corresponding averages of number of bridges per cell were 0.2 and 1.53 and frequencies of seedling mutants 2.7 and 7.3%. Estimates for biological equivalence of thermal neutrons to 1 r of X radiation were obtained.