Table 2.

Quantities of AFB₁ produced by aflatoxin-producing Aspergillus isolated among four agroecological zones of China ^a.

AZE b	District	Aflatoxin B1 (ng·mL−1)
		A. flavus		A. parasiticus		Average c
		Range	Mean	Range	Mean
SEC	Guangzhou	0–25,300	8473a	-	-	8473b
	Zhanjiang	0–25,812	5536d	238–20,172	10,324b	5788d
	Yunfu	0–82,083	6493c	70–1380	725c	6173cd
	Shantou	0–16,501	4178f	-	-	4178e
	shaoguan	0–26,293	3092h	-	-	3092f
	Total		5805A	-	5465C	5795A
YZR	Huanggang	0–17,512	1220j	-	-	1220gh
	Xinzhou	0–1089	73m	-	-	73i
	Xiaogan	0–28,970	7611b	-	-	7611bc
	Yicheng	0–34,870	1803i	5.8	5.8c	1741g
	Xiangzhou	0–2662	147m	-	-	147i
	Total		1579C	-	5.8D	1566D
YR	Qingdao	0–30,588	3493g	4154–13,923	9039b	3955ef
	Yantai	0–23,225	8343a	7111–61,899	27,920a	18784a
	Linyi	0–2312	392l	-	-	392hi
	Weifang	0–60,331	3734f	14.6–57.5	36c	3381ef
	Liaocheng	0–8640	710k	-	-	710ghi
	Total		3041B	-	20,125A	5453B
NE	NE	0–3278	366	159–17,293	8726	1886
	Total	0–3278	366D	159–17,293	8726B	1886C

^a Means with by Turkey’s HSD test (α = 0.05); in a column followed by a different letter are significantly different; ^b SEC, Southeast coastal zone; YZR, the Yangtze River zone; YR, the Yellow River zone and NE, the Northeast zone; ^c Mean aflatoxin of all isolates.