Department of Botany, Dacca University, Dacca-2, Bangladesh
*Present address: B.J.R.I., Sher-e-Banglanagar, Dacca-15, Bangladesh.
The hybrid derivative (B4F6) of C. olitorius ×C. aestuans (A/O) turned out superior than C. olitorius var 0-4 in respect of ultimate fibre length and two out of seven characters that contribute to the yield of fibres. The other hybrid C. olitorius ×C. depressus (O/D) was better than the control only in respect of number of fibre pyramids. It is suggested that the further backcrosses of A/O to the control (C. olitorius) be undertaken to combine the superior ultimate fibre quality and the seven characters in a single variety.
