TABLE 3.

NIL periods

	12°		22°		27°
Line	Period (hr)	SEM	Period (hr)	SEM	Period (hr)	SEM
Ler	25.3	0.19	23.81	0.16	23.67	0.16
NIL42	24.93	0.21	22.53***	0.22	22.56***	0.19
NIL45	24.97	0.19	23.01***,a	0.21	22.57***	0.17
Ler	25.35	0.25	24.29	0.27	23.76	0.37
NIL18	24.87	0.34	23.45**	0.25	23.72	0.26
NIL18-32	25.23	0.39	22.99***	0.31	23.64	0.26
Ler	26.15	0.4	24.47	0.26	24.21	0.32
NIL30-2	25.74	0.27	24.58	0.26	25.05**	0.28
NIL19-2	25.84	0.28	24.2	0.27	25.05*	0.29
NIL26-4	25.72	0.37	24.64	0.26	23.91	0.31

Asterisks indicate P-values of Student's t-test of NIL periods vs. Ler at *P < 0.05, **P < 0.02, and ***P < 0.01.

^aP-value < 0.1 of Student's t-test of NIL 45 vs. NIL 42.