Morphological variation of Perilla crop and their weedy types from northern and southern areas of China

초록

In this study, we detected the morphological variation of 91 Perilla accessions from Northern and Southern China by the measurement of 7 quantitative and 10 qualitative characters. The accessions of cultivated var. frutescens were significantly different from accessions of weedy var. frutescens and cultivated and weedy types of var. crispa in 7 quantitative traits such as plant height (QN1), internodes (QN2), the number of branches (QN3 and QN4), length of the largest inflorescence (QN5), the number of florets (QN6) and flowering time (QN7) etc. In addition, significant differences were found between accessions of cultivated var. frutescens from northern and southern areas of China for 7 quantitative traits. However, there were no significant differences between accessions of cultivated and weedy types of var. crispa. In principal components analysis (PCAs), 5 quantitative traits and 4 qualitative characters contributed in the positive direction on the first axis. 2 quantitative and 6 qualitative characters contributed in the negative direction on the first axis. The accessions of cultivated and weedy types of var. crispa were clearly separated from accessions of cultivated and weedy types of var. frutescens in the PCAs. In addition, most accessions of cultivated var. frutescens from Northern China were discriminated from accessions of cultivated and weedy types of var. frutescens from Southern China. These findings in this study will assist to better understand the morphological variation for two cultivated types of Perilla crop and their weedy types according to the geographical distribution in northern and southern areas of China. © 2017 The Authors.

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