Table 3. Yield response factor (ky) for the combination of deficit irrigation treatments (I) (0.75 and 0.50 ET) with different plant densities (D) in two growing seasons.

I	D	First season			Second season
		1– (ETa/ETm)	1– (GYa/GYm)	ky	1– (ETa/ETm)	1– (GYa/GYm)	ky
0.75 ET	D1	0.224	0.501	2.23	0.224	0.466	2.08
	D2	0.222	0.228	1.02	0.222	0.237	1.07
	D3	0.217	0.145	0.67	0.214	0.128	0.59
	D4	0.216	0.233	1.08	0.217	0.266	1.13
	D5	0.216	0.341	1.58	0.214	0.312	1.46
0.50 ET	D1	0.437	0.624	1.43	0.432	0.590	1.37
	D2	0.436	0.477	1.10	0.434	0.462	1.06
	D3	0.436	0.520	1.19	0.430	0.524	1.22
	D4	0.435	0.579	1.33	0.429	0.555	1.29
	D5	0.434	0.656	1.51	0.428	0.595	1.39

D₁, D₂, D₃, D₄, and D₅ indicate plant density of 150, 250, 350, 450, and 550 seeds m^-2.