An improved protocol for carrot haploid and doubled haploid plant production using induced parthenogenesis and ovule excision in vitro

Table 3. Mean percentage of ovules, developing embryos, or calli in vitro depending on the time of ovule excision from the ovary in 2009–2010. Unpollinated controls (UU and US) are excluded

Time of ovule excision [days after pollination]	No. of plated ovules	Mean percentage of ovules developing
Time of ovule excision [days after pollination]	No. of plated ovules	Embryos		Calli
7	12,186	0.09	c	0.34	a
14–16	20,980	1.02	b	0.86	a
20–22	11,420	2.99	a	0.73	a

Means followed by the same letters in a column do not differ significantly according to Fisher’s LSD test at p = 0.05