Cytogenetic studies of the F1 hybrid Abelmoschus esculentus X A, tetraphyllus and its amphidiploid

Abstract

The FI hybrids, (A.esculentus x A. tetraphyllus resembled the wild parent and exhibited hybrid vigour. Its meiosis was abnormal snowing more of univalents and less of bivalents and was completely sterile. The amphidiploid (A. csculentus-tctraphyllus) obtained through colchicine treatment was fully fertile. It showed a low multivalent formation during meiosis and can survive as a new synthetic species. The practical value of the amphidiploid in okra breeding has been indicated.