Table 1. Descriptive statistics of grain length (GL) and grain width (GW) in collection 1.

Traits	Year	valid data	Mean±SD	Range	skewness	kurtosis
GL	2011	235	8.06±0.97	4.72–10.90	0.07	0.58
(mm)	2012	235	8.05±0.85	6.06–10.56	0.66	-0.24
GW	2011	235	3.28±0.41	2.45–4.23	0.06	-0.68
(mm)	2012	235	3.32±0.40	2.49–4.45	0.16	-0.62

Mean±SD, Mean ± Standard deviation