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Table 1 Allium species used in this study

From: Unbiased profiling of volatile organic compounds in the headspace of Allium plants using an in-tube extraction device

Class in PCA

Binomial name

Species name

Bland name

Harvested field in Japan

08

Allium chinense

Rakkyo

Young rakkyo

Namegata, Ibaraki

01

Allium fistulosum

Spring onion

Mikata spring onion

Hamamatsu, Shizuoka

02

Allium fistulosum

Green spring onion

Aoi-chan green spring onion

Akitakata, Hiroshima

03

Allium fistulosum

Scallion

Hakata scallion

Hakata, Fukuoka

04

Allium fistulosum

Green spring onion

Green spring onion from Nagareyama

Nagareyama, Chiba

05

Allium fistulosum

White spring onion

White spring onion from Nagano

Nagano

06

Allium fistulosum

Leek

Shimonita leek

Gunma

07

Allium fistulosum

Leek

Shirakami leek

Noshiro, Akita

09

Allium fistulosum

Scallion

Kujo scallion

Nagahama, Shiga

11

Allium fistulosum

Spring onion

Goudo spring onion

Anpachi, Gifu

10

Allium tuberosum

Oriental garlic

Oriental garlic

Nagahama, Shiga

12

Allium fistulosum

Red spring onion

Red spring onion

Tsuruoka, Yamagata

  1. All samples were harvested in October 2012
  2. We used the same class names in the PCA score scatter plot (see Fig. 4)