Effect of Presprouting Plant Growth Regulators and Natural Materials on Dormancy, Growth, and Yield of Potatoes (Solanum tuberosum L.)

Table 8

The mean squares of three potato varieties on plant height and number of stems at different weeks after plant emergence.

Sources of variance	Plant height number of stems
	Week 1	Week 2	Week 3	Week 1	Week 2	Week 3
Site	1240.75	8078.38	16851.23	47.98	79.20	86.52
Season	2382.93	9136.64	3168.50	2.64	2.04	0.65
Rep	48.36	127.20	105.20	0.51	0.23	0.46
Variety	7522.43	6204.55	2913.74	21.55	38.14	46.05
Seasonvariety	321.36	14.00	82.88	0.91	1.27	3.54
Sitevariety	1280.01	1160.14	711.43	3.65	2.55	1.87
Site SeasonRepvariety	281.02	674.36	701.30	3.54	3.21	3.63
Treatment	1777.43	1694.56	2280.78	8.79	14.22	19.10
Varietytreatment	69.14	63.07	54.92	0.18	1.04	0.90
Error	41.63	47.56	47.71	0.68	0.68	0.77
CV	19.65	12.98	10.27	33.11	26.08	23.22
R ^2	0.83	0.86	0.86	0.65	0.72	0.73

, , , significant at (), (), (), respectively. CV: coefficient of variation, R.²: coefficient of determination.