Mining and expression analysis of candidate genes involved in regulating the chilling requirement fulfillment of Paeonia lactiflora ‘Hang Baishao’

Table 4 Comparison of accumulated CHs between two winters and estimation for the key period of ‘Hang Baishao’ CR fulfillment in the winter of 2015 to 2016

Accumulated CHs in each time interval			Accumulated CHs in each key time point
	2012–2013	2015–2016		2012–2013	2015–2016
Before Nov. 26	0	33	Nov. 26	0	33
Nov. 26-Dec. 10	103	128	Dec. 10	103	161
Dec. 10-Dec. 24	204	107	Dec. 24	307	268
Dec. 24-Jan. 21	488	331	Jan. 21	795^a	599
Jan. 21-Feb. 4	154	258	Feb. 4	949	857^a
Feb. 4-Feb. 25	278	227	Feb. 25	1227	1084

^aThe period in that year when ‘Hang Baishao’ acquired sufficient CR. The period of CR fulfillment of ‘Hang Baishao’ in 2015–2016 was delayed for 2 weeks comparing with that in 2012–2013

ISSN: 1471-2229