Plant Density and Time of White Lupine (Lupinus Albus L.) Relay Cropping with Tef (Eragrostis tef (Zucc.) Trotter) in Additive Design in the Highlands of Northwest Ethiopia

Table 4

Effect of plant density and time of lupine relay cropping with tef (Eragrostis tef) on plant height, pods per lupine plant, and yield of lupine in 2016 and 2017 main cropping seasons in the highlands of northwestern Ethiopia.

			Plant height of lupine (cm)			No. of pods per lupine plant			Grain yield of lupine (t/ha)
T	IR (cm)	TI (weeks)	2016	2017	COY	2016	2017	COY	2016	2017	COY
T1	20	1	129.7^a	126.7^a	127.7^a	24.6^bc	25.5^bc	25.1^c	0.98^c	1.01^c	0.99^c
T2		2	124.0^ab	125.0^a	124.5^a	21.0^d	22.3^c	21.1^d	1.04^c	1.08^c	1.06^b
T3		3	105.0^c	99.2^b	112.1^b	16.6^e	18.0^d	17.3^e	0.75^d	0.77^d	0.76^d
T4	40	1	111.0^bc	112.0^ab	111.5^b	32.6^a	33.6^a	33.1^a	1.46^b	1.48^b	1.47^b
T5		2	104.5^c	103.5^b	103.8^c	28.7^b	30.bb	29.5^ab	1.36^b	1.37^b	1.37^b
T6		3	102.1^c	107.6^b	102.3^c	27.0^bc	26.3^b	26.6^bc	0.99^c	1.03^c	1.00^c
Sole									2.62^a	2.65^a	2.63^a
	P value	ns
	SE±	7.9	7.3	7.1	1.4	1.5	1.3	0.06	0.07	0.05
	CV%	8.6	8.1	8.4	7.1	7.4	6.6	6.4	7.0	5.7

Means within a column followed by the same letter(s) are not significantly different:  = significant at P < 0.05; ns = nonsignificant at P ≥ 0.05; T = treatment; IR = inter-row spacing of lupine; TI = time of lupine intercropping in weeks; COY = combined over years; SE± = standard error; CV = coefficient of variation.