TABLE 4.

Combined analysis of variance for the studied traits of sugar beet genotypes

Source of variation	Df	Mean of squares
		Root yield	Sugar yield	Sugar content	White sugar content	White sugar yield
Year	1	1947.2**	240.8**	93.9**	41.2**	166.5**
Location	3	42527.8**	2404.5**	680.6**	1281.6**	2943.8**
Year × Location	3	35118.8**	953.8**	262.3**	344.8**	686.8**
Error 1	24	216.9	10.3	2.8	4.9	9.3
Genotype	24	2112.9**	79.8**	14.3**	24.9**	64.2**
Genotype × Year	24	326.9**	10.9**	1.8**	2.4**	8.6**
Genotype × location	72	365.2**	15.6**	2.7**	4.3**	13.1**
Genotype × Year × location	72	263.9**	9.0**	1.4**	2.0**	7.4**
Error 2	576	74.1	2.8	0.9	1.2	2.3

Source of variation	Df	Mean of squares
		Na+	K+	Alpha‐amino nitrogen	Molasses sugar	Extraction coefficient of sugar
Year	1	5.8**	22.4**	75.8**	10.6**	2.8**
Location	3	593.1**	231.1**	19.3**	183.9**	9181.2**
Year × Location	3	48.2**	2.9 ns	19.6**	6.8**	1422.6**
Error 1	24	0.8	3.4	0.4	0.6	30
Genotype	24	8.1**	3.0**	1.3**	2.0**	142.5**
Genotype × Year	24	07**	0.5**	0.2**	0.2**	13.3**
Genotype × location	72	1.6**	0.6**	0.2**	0.3**	33.1**
Genotype × Year × location	72	0.6**	0.3*	0.1**	0.1**	12.7**
Error 2	576	0.3	0.2	0.1	0.1	6.2

Note: *, **Significant at 5% and 1% probability levels, respectively.

Abbreviation: ns, nonsignificant.