relatively homozygous line
1.This experiment adopted culture technique of sugarbeet unpollinated ovulum to creat a homozygous diploid line,and selected with mutagenesis 3 tetraploid high yield lines and 6 high sugar lines and 3 high yield as well sugar lines,their resistance to Cercospora Leaf spot were better than check variety.
5.having relatively few calories.
6.a relatively unimportant matter
7.Having relatively high density.
8.A relatively minor crisis.
9.extending relatively far inward.
10.a relatively unsophisticated mechanism
