Dynamics of Mean-Variance-Skewness of Cumulative Crop Yield Impact Temporal Yield Variance

Table 2

Summary of repeated measurements analysis of variance of cumulative yield using restricted maximum likelihood with autoregressive correlations.

Number of years (d.f.)	𝐹-value years	𝐹-value subsystems	𝐹-value interaction
2 (1)	5.22^*†	3.92**	0.23 n.s.
3 (2)	9.10**	17.44***	0.64 n.s.
4 (3)	7.25***	42.18***	0.58 n.s.
5 (4)	50.05***	71.05***	1.83**
6 (5)	62.08***	79.62***	2.25**
7 (6)	66.12***	80.84***	3.56**
8 (7)	77.96***	79.55***	3.87**

^†Values followed by *, **, *** are significantly different at the 5, 1, and 0.1% level of probability, respectively; n.s., not significant.