Snap Bean (Phaseolus vulgaris) Response to Deficit Irrigation and Nitrogen Fertilizer and Relationships between Yield, Yield Component, and Protein Content

Table 4

Mean squares of the snap bean’s pod diameter (PdD), pod number (PdN), protein concentration (PC), and total pod yield (TPdY) (F-test).

Source of variation	DF	PdD	PdN	Pc	TPdY
Y	1	0.003	465.13	1.66	101.08
R (Y)	4	0.002	38.04	4.09	8.99
Ir	2	0.11	2198.29	43.19	479.05
Y  Ir	2	0.00004	20.79	0.74	4.56
Error Ir	8	0.0008	19.4	0.2	4.7
N	3	0.094	652.57	39.22	145.1
Y  N	3	0.00007	1.61	0.28	0.33
Ir  N	6	0.0001	26.85	1.11	7.5
Y  Ir  N	6	0.00003	1.94	0.043	0.43
Residual	36	0.0004	3.56	0.29	0.71
Total	71

, , and indicate significant differences at 5%, 1%, and 0.1% levels of probability, respectively.