Polyploidy in a cultivar of black pepper(piper nigrum L.) and its open pollinated progenies

Abstract

Polyploidy in a cultivar (Collection No: 1344) of black pepper (Piper nigrum L.) and numerical chromosomal variation in its twenty progenies were identified by cytological analysis. The plant was a triploid with chromosome number 2n=78, and the progenies showed a range of variation from 2n=52 to 2n=104. Morphological types were observed with variation in chromosome number. Possible origin of the mother plant is also discussed. © 1993, Japan Mendel Society, International Society of Cytology. All rights reserved.