Yield potential study of three genotypes (RABI-3, JP- 3 and Camarosa) of strawberry (fragaria X ananassa Duch.) in Bangladesh
Abstract
Strawberry (Fragaria × ananassa Duch.) is one of the important and popular fruits in the temperate countries of the world due to its fragrance, taste and nutritional properties. Due to its popularity and increasing demand in Bangladesh, an experiment was conducted to establish a rapid in vitro clonal propagation of three strawberry genotypes and yield potential study of these three strawberry genotypes. Runner tips of three strawberry genotypes viz. RABI-3, JP-3 and Camarosa were cultured in vitro for multiple shoot proliferation and root induction. Proliferation of runner tips was obtained on MS basal medium containing three different concentrations (0.5, 1.0 and 1.5 mg/l) of BA singly and with 0.5 mg/l KIN or GA3. The best shoot proliferation was obtained from cultures grown on medium supplemented with 1.5 mg/l BA with 0.5 mg/l KIN. Microcuttings were rooted on half strength MS medium with 0.5-1.5 mg/l IBA or IAA. Maximum rooting (87-100%) with 9-12 roots/ cultures was achieved at 1.0 mg/l IBA. The plantlets, thus developed were hardened and successfully stablished in soil. RABI-3 showed best performance in all morphological and yield contributing characrers followed by JP-3 and Camarosa. This result indicated that Bangladeshi strawberry variety was more responsive under in vitro and ex vitro condition than Japanese and American variety.
