Cangzhou;
Academy;
of;
Agricultural;
and;
Forestry;
Sciences,;
Cangzhou;
061001,;
China;
The;
National;
Key;
Facility;
for;
Crop;
Gene;
Resources;
and;
Genetic;
Improvement;
(NFCRI),;
Institute;
of;
Crop;
Sciences,;
the;
Chinese;
Academy;
of;
Agricultural;
Sciences,;
Beijing;
100081,;
China;
B染色体; 组织培养; 春小麦; 黑麦; 基因组原位杂交; 组织细胞; 染色体倍性; 细胞学观察;