Influence of Corn (Zea mays L.) Cultivar Development on Grain Nutrient Concentration

Table 5

Micronutrients exportation of maize cultivars 2006 and 2007, at Rolandia County, Parana State, Brazil.

		Cu	Fe	Mn	Zn	Cu	Fe	Mn	Zn
Treatment		2006				2007
					g ha^−1
Single	AG9010	17.9^a	51^ab	16.1^abc	90^a	10.6^a	348^ab	88.5^bc	222^abc
Hybrids	DKB950	13.8^abc	44^ab	10.9^bcd	73^ab	7.3^a	354^ab	98.2^abc	233^ab
Triple	DKB566	14.6^abc	60^ab	23.0^a	101^a	5.7^a	278^bc	98.5^abc	205^abc
Hybrids	AG5020	13.1^abc	48^ab	15.4^abc	87^a	10.4^a	381^a	110.9^ab	235^ab
Double	AG2040	21.3^a	66^a	23.4^a	86^a	10.0^a	352^ab	123.0^a	241^a
Hybrids	DKB979	15.3^ab	61^ab	20.5^ab	93^a	9.9^a	304^ab	96.9^abc	227^abc
Commercial	BRS4157	11.1^abcd	63^ab	16.5^abc	65^ab	5.3^a	211^cd	70.8^cde	175^bc
Varieties	BR106	4.6^bcd	29^bc	13.4^abc	44^bc	4.8^a	277^bc	82.5^bcd	169^c
Landraces	GI045	2.7^cd	12^c	5.3^cd	19^cd	6.0^a	189^d	54.9^de	109^d
Cultivars	Palotina	1.2^d	3^c	1.4^d	6^d	4.2^a	181^d	52.6^e	104^d
Coefficient of variation		73	53	55	39	92	22	25	23

* Averages followed by the same letter in a column did not differ according to duncan’s multiple range test (𝑃≤0.05).