Mixed teff (Eragrostis tef, Poaceae) cultivation and consumption among smallholder farmers in South Wollo Zone, Ethiopia

Table 5 Statistical analysis of the number of teff varieties reported according to gender, age, interactions with DAs, and experience in Kalu and Tehuledere Districts

Attributes	Group of informants	n	Average ± SD	t-value	P-value
Gender	Male	283	2.01 ± 1.004	2.8665	0.0044*
Gender	Female	57	1.59 ± 0.99	2.8665	0.0044*
Age	18–40 y/o	169	1.58 ± 0.998	7.042	0.00001*
Age	41–80 y/o	171	2.29 ± 1.006	7.042	0.00001*
Development agents’ guidance	Fully guided by DA	177	1.63 ± 1.00	-2.9105	0.00001*
Development agents’ guidance	Partially guided by DA	163	2.28 ± 1.006	-2.9105	0.00001*
Informant category	Experienced (> 5 years of growing sergegna)	218	2.31 ± 1.005	10.263	0.00001*
Informant category	Less Experienced (< 5 years of growing sergegna)	122	1.29 ± 0.84	10.263	0.00001*
Total number of informants (N)		340

*Significant difference (p < 0.05); ** t (0.05) (two-tailed), df = 338, DA = agricultural development agents

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