Runner segments and runner tips of BARI Strawberry -1 was used as explant.
Explants were collected from Horticulture Research Centre (HRC) of BARI. For
establishing the explants in the media, only the tender and actively growing
runner segments and runner tips having 1.00-1.25 cm long were prepared to use
as explants. The explants were washed with running tap water and sterilized with
trix and HgCl2. To maintain aseptic condition, precautions were taken in every step
of works. All inoculations and aseptic manipulations were carried out in a laminar
airflow cabinet. During operation, hands and cabinet base were rubbed with 70%
ethyl alcohol frequently for maintaining clean condition. To obtain possible
contamination free condition in clean bench, proper care was taken during explant
preparation. Shoot tips were prepared inside the laminar airflow cabinet using a
fine sterile forcep and scalpel. The excised shoot tips were then inoculated on to
the culture test tubes per vials containing various concentrations of BAP for in
vitro multiple shoot regeneration. The physical conditions for growth and
development of cultures were maintained at the temperature of 25 ± 10C and a
light intensity of 2000-3000 lux provided by fluorescent tube. The photoperiod
was maintained at 16 hours light and 8 hours dark (16L/8D) and the relative
humidity was 60-70%.