Table 1.

Effect of explant on callus induction and regeneration rate of YUNMA7 explants

		n	Responding explants at callus induction stage (%)	Significance	Responding explants at regeneration stage (%)	Significance*
Embryo hypocotyls of immature grains	10 Days after anthesis	1969	17.18 ± 5.28	b	5.71 ± 1.06	ab
	15 Days after anthesis	1561	31.08 ± 8.54	a	6.12 ± 1.51	a
	20 Days after anthesis	1846	21.46 ± 6.81	ab	5.29 ± 0.85	b
	25 Days after anthesis	1227	19.77 ± 2.15	ab	5.77 ± 1.16	ab
Seedlings	Ture leaves	1828	5.97 ± 1.56	c	2.27 ± 1.29	c
	Cotyledons	1757	7.65 ± 2.17	c	1.78 ± 0.76	c
	Hypocotyls	1413	5.31 ± 2.38	c	1.41 ± 0.47	c

Mean of responding explants is denoted as a percentage (±SE) of the total explants.

^*Different letters (a, b and c) among the levels of each factor indicate the significant differences between them (P < 0.05).