동아시아 및 동남아시아에서 수집한 들깨, 차조기 작물과 잡초형 계통들의 형태적 변이 = Morphological Variation of Cultivated Types of Perilla Crop and Their Weedy Types in East and Southeast Asia

다국어 초록 (Multilingual Abstract)

To better understand the morphological variation of the Perilla crop and their weedy types in East and Southeast Asia, we studied the morphological variation of 90 accessions by examining 10 morphological characteristics,such as flowering time, seed size, seed hardness, seed color, color of surface leaf, color of reverse side leaf etc.
As a result, morphological variation determined that between cultivated var. frutescens and var. crispa, and between cultivated var. frutescens and its weedy type showed significant morphological differences in terms of seed size and seed hardness, whenever cultivated var. crispa and its weedy type could not showed significant differences in most morphological characters. In PCAs (principal component analysis), among 10 morphological characteristics, flower color (QL6), color of surface leaf (QL3), seed size (QN2), seed hardness (QL1), seed color (QL2), stem color (QL7), and color of reverse side leaf (QL4) contributed in negative direction on the first axis, while flowering time (QN1), leaf shape (QL5), and degree of pubescence (QL8) contributed in positive direction on the first axis. Among these morphological characters, particularly flower color (QL6), color of surface leaf (QL3), seed size (QN2), seed hardness (QL1), and degree of pubescence (QL8) were useful characters for discrimination between cultivated var. frutescens and weedy var. crispa,and between cultivated var. frutescens and its weedy type.
However, most accession of cultivated and weedy types of var. crispa was not clearly discriminated by PCA analyses.
Although the wild ancestral species of var. frutescens and of var. crispa are still unknown in East and Southeast Asia,the weedy types of Perilla crop may be the key taxon for our understanding of the origin of cultivated types of var.
frutescens and var. crispa.

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