Comments on the variation of spike morphology in selected species of Elytrigia and Elymus (Triticeae)
1995
Kosina, R. (Wroclaw University (Poland). Inst. of Botany)
The number of spikelets per spike reveals the weakest correlations with other characters of the spike. The same concerns some character ratios. The correlations provide information about the segmented structure (metamers) of the spike. There is a great difference between matrices of correlation coefficients for Elytrigia repens and Elytrigia intermedia related to the development and structure of spike. Characters important for the description of the spike were chosen-in five-character set these are among others: length of glume awn in median spikelet, length of lemma awn in the first floret of the median spikelet, number of spikelets per spike. Length of lemma awn and mean length of the rachis segment were recognized as the best discriminants for species
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