Plant Tissue Cult. 2(1): 35-39, 1992

RECOVERY OF FERTILE BACKCROSS DERIVATIVES IN A STERILE INTERSPECIFIC HYBRID OF HIBISCUS

Shamsuddin Ahmed

Bangladesh Jute Research Institute, Sher-e-Bangla Nagar, Dhaka-1207, Bangladesh

Key words:

Abastract

In an attempt to breed a disease resistant variety of cultivar Hibiscus cannabinus (diploid), immature embryos obtained from the backcross between H. cannabinus and the almost completely sterile and vigorous triploid F₁-H. radiatus ? H. cannabinus were cultured in vitro. Of all the media tried best results were obtained in MS + 0.2 mg/1 IBA + 100 mg/1 adenine sulphate + 2% sucrose. The BC₁s were fully fertile, vigorous and resembled the cultivar female, H. cannabinus in the majority of characters; and male and F₁ in respect of absence of branches, average number of nodes, number of bracts, indehiscent fruit character, seed index and fibre length.

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