. 2020 Jun 15;10(6):244. doi: 10.3390/metabo10060244

Table 3.

A list of allelochemicals detected in 9 rice cultivars.

No.	Allelochemicals *	Cultivars (Oryza sativa L.) **									Detection
No.	Allelochemicals *	1	2	3	4	5	6	7	8	9	Frequency (%)
1	2,4-dihydroxybenzaldehyde				√						11.1
2	2,6-dimethoxybenzoic acid		√					√			22.2
3	3,4-dihydroxybenzoic acid			√	√	√		√	√		55.6
4	3,4-dihydroxyphenylacetic acid			√		√			√		33.3
5	3-hydroxybenzoic acid	√			√	√	√	√	√		66.7
6	4-hydroxybenzoic acid	√			√	√	√	√	√		66.7
7	5-methoxysalicylic acid			√							11.1
8	7-oxostigmasterol	√	√			√	√	√	√	√	77.8
9	Benzoic acid			√							11.1
10	2,4-dimethoxybenzoic acid	√	√			√	√	√	√		66.7
11	2,5-dihydroxybenzoic acid			√	√	√		√	√		55.6
12	3,4-dimethoxybenzoic acid	√	√			√	√	√			55.6
13	3,5-dihydroxybenzoic acid			√	√	√		√	√		55.6
14	3,5-dimethoxybenzoic acid	√	√			√	√	√			55.6
15	Cinnamic acid	√	√	√	√	√	√	√	√		88.9
16	Coumarin			√							11.1
17	Ergosterol peroxide								√		11.1
18	p-hydroxycinnamic acid	√	√	√	√	√	√	√	√	√	100.0
19	Salicylic acid	√			√	√	√	√	√		66.7
20	Vanillic acid			√		√			√		33.3
	Total	9	7	10	9	14	9	13	13	2
	Percentage (%)	45	35	50	45	70	45	65	65	10

* Allelochemicals putatively identified using a mass spectral library (METLIN) denote the identification level of 2. ** OM 5451 (1), OM 380 (2), OM 3536 (3), OM 6976 (4), OM 4498 (5), OM 2395 (6), OM N406 (7), OM 5930 (8), and OM 7347 (9). √ means the allelochemical existed in the associated rice cultivar.