A study on the morphological diversity of 475 accessions of Cynodon dactylon

Abstract

Abstract: The genetic diversity of C. dactylon accessions originating from different regions were assessed using morphological markers: morphological diversities of 475 accessions of Cynodon dactylon were studied using 17 morphological characters. 1) Abundant morphological variation existed in accessions of C. dactylon. The variations of turf height, leaf length, and internode length were the largest, followed by inflorescence length, leaf width, internode diameter, and spikelet number. Inflorescence branch numbers had the least variation. 2) There were significant correlations among some morphological characters of C. dactylon accessions. With increasing turf height, C. dactylon had longer leaves, stronger stolons, longer inflorescence lengths, more inflorescence branches and spikelets, and more hairs.3) The accessions clustered into two major morphological types using the unweighted pair-group method with arithmetic averages (UPGMA), designated as either high type or low type.

CLC Number:

HUANG Chun-qiong, LIU Guo-dao, BAI Chang-jun, WANG Wen-qiang, TANG Jun, YU Dao-geng. A study on the morphological diversity of 475 accessions of Cynodon dactylon[J]. Acta Prataculturae Sinica, 2012, 21(4): 33-42.

References

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