. 2022 Jan 21;12:1121. doi: 10.1038/s41598-022-05024-1

Table 5.

Results of stepwise regression analysis for predicting fresh and dry forage yield contributors in Poa pratensis accessions evaluated in non-stress and drought stress conditions.

Treatment	FFY					FDY
Treatment	Variable entered	Parameter estimate	Partial R²	Model R²	F Value	Variable entered	Parameter estimate	Partial R²	Model R²	F Value
Non-stress	FLv	8.57	0.02	0.24	9.32**	FLv	5.41	0.0043	0.38	12.42**
	TFC	− 1.43			2.82^n.s	TFC	− 1.79			7.45**
	Intercept	806.68			205.49***	Anti	5.88			6.34*
						Intercept	250.70			20.72**
Drought stress	TPC	4.39	0.0036	0.62	7.30**	TPC	2.14	0.0001	0.72	4.26*
	FLv	3.42			14.94**	FLv	2.81			24.76***
	TFC	− 1.60			11.04**	TFC	− 0.87			8.11**
	Antho	3.51			3.20^n.s	Antho	2.53			4.06*
	Intercept	343.22			50.00***	Intercept	144.34			21.62***

n.s, *, ** and *** represent non-significant, significant at P < 0.05, P < 0.01 and P < 0.001, respectively. TPC, total phenol content; TFC, total flavonoid content; FLv, flavanone; Anti, antioxidant activity; Antho, anthocyanin; FFY, forage fresh yield; FDY, forage dry weight.