Potential role of kaolin or potassium sulfate as anti-transpirant on improving physiological, biochemical aspects and yield of wheat plants under different watering regimes

Bulletin of the National Research Centre

Table 8 Effect of different concentrations of kaolin or K₂SO₄ under different levels of water holding capacity on carbohydrate percentage, protein percentage, and elements (N, P, K, and Ca %) of wheat grains (combined analysis of two seasons)

WHC (%)	Treatment	Carbohydrates %	Protein %	N %	P %	K %	Ca %
80%	Control	52.76	12.11	1.94	0.38	0.42	0.017
	Kaolin 3%	58.93	13.96	2.23	0.39	0.47	0.023
	Kaolin 6%	55.27	14.13	2.26	0.41	0.42	0.026
	K₂SO₄ (100 mg/l)	56.88	14.39	2.30	0.41	0.42	0.069
	K₂SO₄ (200 mg/l)	57.66	15.01	2.40	0.44	0.48	0.021
60%	Control	46.19	12.47	2.00	0.40	0.46	0.023
	Kaolin 3%	48.50	14.26	2.28	0.40	0.48	0.023
	Kaolin 6%	54.34	13.74	2.20	0.40	0.48	0.028
	K₂SO₄ (100 mg/l)	52.68	14.31	2.29	0.45	0.47	0.046
	K₂SO₄ (200 mg/l)	50.77	14.26	2.28	0.41	0.46	0.048
40%	Control	43.49	12.03	1.93	0.37	0.41	0.012
	Kaolin 3%	47.66	12.91	2.07	0.41	0.42	0.020
	Kaolin 6%	46.89	13.52	2.16	0.38	0.44	0.016
	K₂SO₄ (100 mg/l)	47.98	13.21	2.11	0.38	0.48	0.017
	K₂SO₄ (200 mg/l)	47.23	14.48	2.32	0.40	0.47	0.015
LSD at 5%		1.45	1.45	0.13	n.s	0.05	0.003