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 concentra ons (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. Microcu ngs were rooted on half strength MS
medium with 0.5-1.5 mg/l IBA or IAA. Maximum roo ng (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.