Abstract
A ploidy series including haploid, diploid, triploid, tetraploid and pentaploid plants were identified among mono-embryonic and polyembryonic progeny of male-sterile (ms1/ms1) soybeans (Glycine max (L.) Merrill). Ploidy level was positively correlated with guard cell length, number of chloroplasts per guard cell, leaflet width to length ratio and flower size; and negatively correlated with stomatal frequency and number of internodes. The influence of ploidy level was significant for all characteristics examined. All of these characteristics responded linearly with ploidy level, with coefficients of determination ranging from 0.54 to 0.94. Guard cell length and number of chloroplasts per guard cell appeared to be excellent indicators of ploidy level.
Published Version
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