Meiotic Analysis and Pollen viability in Asparagus racemosus var. javanica (Kunth) Baker

Abstract

Asparagus racemosus var. javanica (Kunth) Baker a diploid (2n=20) plant belonging to the family Liliaceae. Meiotic chromosome behaviour and pollen viability accounts for fertility and seed setting. Hence the present study was undertaken to analyse meiotic chromosome behavior. Meiosis showed abnormalities like chromosome stickiness, micronuclei, dicentric bridges with laggards, snapping of bridge, unequal distribution of chromatin material, precocious movement of chromosome, change in orientation and unreduced gametes etc without any treatment. Pollen viability was found to be maximum in acetocarmine: glycerine campared to TTC (2,3,5- triphenyl terazolium chloride).