Can Superabsorbent Polymers Improve Plants Production in Arid Regions?

Table 3

Means of the studied traits for three crop families as a result of different levels of superabsorbent application.

	Mean of SAP treatments (kg ha^−1)	Mean of control treatment (kg ha^−1)	Coefficient of variations (%)	Min level of SAP (kg ha^−1)	Max level of SAP (kg ha^−1)
Cereals (six experiments)
Seed yield (kg ha^−1)	8013.7	6954.8	59.49	7398.8	8194.4
Dry matter yield (kg ha^−1)	31319.2	25248	78.28	29464	32976.2
Harvest index (%)	36.96	37.22	35.35	35.17	36.11
Medicinal plants (three experiments)
Seed yield (kg ha^−1)	3079.62	2734.61	38.49	3040.30	3119.45
Dry matter yield (kg ha^−1)	21323.5	17056	13.83	20823	21829.5
Harvest index (%)	15.45	14.64	31.44	15.18	14.1
Pulses (five experiments)
Seed yield (kg ha^−1)	1642.47	1190.32	56.83	1526.22	1749.59
Dry matter yield (kg ha^−1)	3684.63	3301.30	63.84	3555.83	3796.12
Harvest index (%)	49.49	42.37	20.29	48.29	50.40