TY - GEN AU - Horner,M AU - Mott,R L TI - The frequency of embryogenic pollen grains is not increased by in vitro anther culture in Nicotiana tabacum L SN - 0032-0935 PY - 2013///1209 N1 - Publication Type: Journal Article UR - https://doi.org/10.1007/BF00389517 ER -