. 2014 Dec 31;15:155. doi: 10.1186/s12863-014-0155-y

Table 1.

Mean, range, and heritability for yield and P use efficiency traits of the population

Trait	Year	Parents			RILs
Trait	Year	Minghui63	Zhenshan97	LSD _0.05	Mean	Min	Max	Skew	Kurt	h _B ²
Low P
BIOM	2008	1585	819	378	1224	715	1678	0.15	1.08	90.9
(g m⁻²)	2009	1391	795	146	1211	789	1468	−0.74	0.71	90.9
HI	2008	44.1	48.3	7.7	40.7	27.7	51.6	−0.16	0.00	67.5
(%)	2009	36.4	43.9	15.2	40.0	24.8	51.4	−0.51	0.12	67.5
Yield	2008	813	464	255	580	335	1000	0.67	1.15	72.2
(g m⁻²)	2009	587	407	217	558	163	783	−0.59	1.20	72.2
PUP	2008	3.83	2.13	0.93	3.17	2.05	4.94	0.46	1.98	85.0
(g m⁻²)	2009	3.02	1.83	1.25	2.75	1.89	3.45	−0.61	0.24	85.0
PHI	2008	64.3	72.6	3.1	58.7	36.2	74.1	−0.37	−0.20	74.3
(%)	2009	56.5	63.0	25.1	57.4	18.6	73.7	−0.91	1.83	74.3
gPUE	2008	285	260	108	270	221	351	0.84	1.16	54.9
(g g⁻¹)	2009	304	311	109	309	255	404	0.55	1.09	54.9
strPUE	2008	650	730	199	582	394	862	0.61	−0.30	77.4
(g g⁻¹)	2009	743	695	575	666	463	1005	0.62	0.01	77.4
PUEb	2008	415	388	124	390	330	490	0.69	0.29	75.7
(g g⁻¹)	2009	472	447	188	447	367	573	0.68	0.75	75.7
PUEg	2008	213	219	92	184	121	254	0.22	−0.25	67.6
(g g⁻¹)	2009	204	230	157	207	55	295	−0.49	1.51	67.6
PT	2008	1.94	0.98	0.57	1.49	0.68	2.18	0.21	0.18	70.2
(g m⁻²)	2009	1.63	1.16	0.39	1.29	0.43	2.06	−0.33	−0.21	70.2
PTE	2008	61.0	76.5	10.1	61.0	25.4	80.2	−0.43	0.38	80.9
(%)	2009	58.5	76.1	26.3	58.3	16.4	79.0	−0.95	1.05	80.9
Normal P
BIOM	2008	1610	810	200	1269	801	1704	−0.49	1.00	86.9
	2009	1395	790	277	1232	808	1513	−0.78	0.97	86.9
HI	2008	42.5	50.7	6.3	40.8	27.7	50.0	−0.24	−0.44	72.3
	2009	31.8	44.8	5.8	38.9	23.2	49.6	−0.54	−0.14	72.3
Yield	2008	796	479	148	600	197	908	0.07	1.20	69.4
	2009	514	409	83	553	179	757	−0.57	0.76	69.4
PUP	2008	4.30	2.56	0.76	3.49	2.24	4.73	0.01	0.94	83.8
	2009	3.78	2.22	0.73	3.29	2.29	4.21	−0.09	−0.28	83.8
PHI	2008	59.1	67.8	4.8	54.8	35.0	70.4	−0.21	−0.52	78.2
	2009	42.7	56.7	4.0	50.0	14.4	68.0	−0.70	0.91	78.2
gPUE	2008	271	239	89	273	217	343	0.38	0.52	76.1
	2009	274	284	65	292	236	332	0.20	−0.24	76.1
strPUE	2008	530	484	106	492	304	757	0.52	0.31	81.2
	2009	438	457	70	474	326	664	0.45	−0.30	81.2
PUEb	2008	377	317	81	364	272	469	0.23	1.75	80.4
	2009	368	359	61	377	300	465	0.27	0.01	80.4
PUEg	2008	187	188	63	173	88	231	−0.10	0.09	73.5
	2009	136	187	45	170	45	246	−0.57	0.76	73.5
PT	2008	1.68	1.55	1.23	1.55	0.79	2.48	0.09	−0.08	58.7
	2009	1.39	1.27	0.29	1.44	0.36	2.28	−0.68	0.81	58.7
PTE	2008	50.0	75.8	23.6	56.5	29.8	77.3	−0.49	−0.28	80.9
	2009	41.2	66.7	13.1	51.6	13.4	76.0	−0.83	0.55	80.9

BIOM: total aboveground biomass, HI: harvest index, gPUE: P use efficiency for grain yield based on P accumulation in grains, PHI: P harvest index, PT: P translocation, PTE: P translocation efficiency, PUP: total aboveground P uptake, PUEb: P use efficiency for biomass accumulation, PUEg: P use efficiency for grain yield, strPUE: P use efficiency for straw dry weight based on P accumulation in straw, h _B ²: broad heritability.