. 2016 Oct 7;6:34978. doi: 10.1038/srep34978

Table 4. Pearson correlation coefficients among changes in phytohormones and changes in panicle traits and yield components across different varieties and heat treatments (n = 12).

Phytohormone changes	ΔYield	ΔSpikelets /panicle	ΔPB	ΔSB	ΔRSB	ΔFPB	ΔFSB	ΔRFPB	ΔRFSB	ΔSpikelet fertility	ΔExserted panicle length	ΔAnther dehiscence	ΔVigorous pollen	ΔGrain weight	ΔGrain length	ΔGrain width	ΔGrain area
ΔiP9G + tZ9G	−0.82^**	−0.67^*	−0.66^*	−0.80^**	0.16	0.03	−0.20	0.28	0.67^*	−0.70^*	−0.77^**	−0.48	−0.58^*	−0.77^**	−0.49	−0.34	−0.55
ΔtZ + tZR	0.87^**	0.92^**	0.57	0.87^**	−0.80^**	0.52	0.86^**	−0.35	−0.96^**	0.40	0.40	0.84^**	0.88^**	0.86^**	0.68^*	−0.26	0.22
ΔiP + iPA + iPMP	0.76^**	0.74^**	0.33	0.73^**	−0.54	0.41	0.60^*	0.02	−0.90^**	0.53	0.61^*	0.77^**	0.70^*	0.89^**	0.78^**	0.12	0.54
ΔaCTKs	0.83^**	0.84^**	0.43	0.8^**	−0.66^*	0.46	0.71^**	−0.11	−0.96^**	0.51	0.56	0.83^**	0.78^**	0.92^**	0.78^**	−0.01	0.45
ΔCTKs	0.40	0.57	−0.05	0.40	−0.84^**	0.75^**	0.89^**	0.13	−0.77^**	0.02	0.04	0.77^**	0.58^*	0.59^*	0.67^*	−0.40	0.10
ΔGA₁	0.51	0.17	0.35	0.29	−0.14	0.29	0.16	0.02	−0.40	0.98^**	0.85^**	0.56	0.26	0.60^*	0.33	0.65^*	0.50
ΔIAA	0.75^**	0.53	0.49	0.56	−0.60^*	0.67^*	0.66^*	−0.27	−0.65^*	0.79^**	0.58^*	0.88^**	0.66^*	0.72^**	0.49	0.10	0.17
ΔABA	0.72^**	0.69^*	0.57	0.74^**	−0.42	0.17	0.51	−0.50	−0.51	0.31	0.17	0.46	0.66^*	0.43	0.42	−0.33	−0.19

^*And ^**indicate significant Pearson correlation at the P < 0.05 and P < 0.01 level (two-tailed), respectively. Δ, change in trait was defined as the difference of the value under high temperature treatment from the value under the control. FPB, number of differentiated florets on primary branches; FSB, number of differentiated florets on secondary branches; PB, number of differentiated primary branches; RFPB, number of retrograded florets on primary branches; RFSB, number of retrograded florets on secondary branches; RSB, number of retrograded secondary branches; SB, number of differentiated secondary branches.