Figure 3. Variation and segregation of M2
-generation peanut plants in terms of plant height, branch number, and
pod shape following radiation from a mixed high-energy particle field. a. Among the offspring of plant no. 68
(in the 67 Gy group), one M2
plant displayed morphological abnormalities at the seedling stage. b. Segregation
was observed in the size of offspring of plant no. 7 (in the 67 Gy group). c. The mutagenic parent, Luhua 11,
produced offspring that were uniform in growth and appearance. d. Abnormality and segregation were observed
in branch number of the offspring of plant no. 64 (in the 67 Gy group). e. The offspring of plant no. 4 (in the 105
Gy group) displayed variation and segregation; one plant was clearly shorter than the others; f. and g. Variation
and segregation were observed in the pod size of the offspring of plant no. 4 and plant no. 64 (in the 67 Gy group).