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 7 Effect of different concentrations of kaolin or K₂SO₄ under different levels of water holding capacity on yield components of wheat plants (combined analysis of two seasons)

WHC (%)	Treatment	Plant height (cm)	Spike length (cm)	Spike wt. (g)	Spikelet no. /spike	Grain no./spike	Grain wt. (g)/spike	Weight of 1000 grains (g)
80%	Control	63.51	10.33	1.82	14.00	36.50	1.415	39.62
	Kaolin 3%	64.62	11.67	2.04	16.33	39.33	1.543	39.81
	Kaolin 6%	66.03	12.33	2.15	15.67	43.50	1.950	44.23
	K₂SO₄ (100 mg/l)	70.14	12.33	2.48	16.33	45.67	2.099	45.15
	K₂SO₄ (200 mg/l)	69.00	12.00	2.43	15.33	49.33	2.271	47.68
60%	Control	58.33	10.00	1.79	14.00	33.50	1.311	38.43
	Kaolin 3%	61.88	13.00	2.33	15.67	38.40	1.576	41. 36
	Kaolin 6%	62.60	13.33	2.45	15.00	44.50	1.843	42.83
	K₂SO₄ (100 mg/l)	61.00	12.33	2.26	14.33	41.00	1.855	44.99
	K₂SO₄ (200 mg/l)	61.33	12.67	2.73	14.33	40.33	1.896	48.00
40%	Control	57.00	9.33	1.64	14.00	26.67	1.149	35.94
	Kaolin 3%	59.33	10.33	2.00	14.33	29.67	1.289	39.32
	Kaolin 6%	58.07	13.00	1.91	13.67	32.33	1.297	40.66
	K₂SO₄ (100 mg/l)	59.00	12.33	1.95	14.33	36.67	1.554	41.20
	K₂SO₄ (200 mg/l)	59.67	12.00	1.98	14.00	34.33	1.559	41.59
LSD at 5%		2.39	0.36	0.15	0.67	3.28	0.008	0.23