Two samples of sorghum from one district fit get different features. One paper wey Scientific Reports publish on 4 November examine 108 local forms of sorghum from Tigray for northern Ethiopia. Shushay Welderufael compare 13 things wey person fit see for di plants to find out how much difference dey inside each area and how much dey between one area and another.
Local crop population wey people don keep over time na wetin researchers dey call landrace. Di name fit tell researcher something about di crop but e no describe everything about di grains or di head wey carry seed. Farmers for eight districts give samples and information about dia sorghum. Di analysis group am by district wey e come from, geographical zone and how high di land dey.
No be every feature get di same amount of difference. For di measure of diversity wey di paper use, grain form score 0.33 while how plump di grain be score 0.99. Di figures describe di different forms wey dem see for each feature. No be weight in grams or estimate of how much grain farmer go harvest.
District boundaries explain only small part of di variation. When dem group by district, 85 per cent of di differences dey inside districts. When dem group di same samples by geographical zone, 92 per cent dey inside zones. When dem group by how high di land dey, 89 per cent dey inside those groups. Na separate comparisons for di same collection.
Dis result matter when person dey collect and preserve seed. If person take only one example from each district, e fit miss differences wey dey nearby. Features wey help tell di samples apart include shape of di seed head, how tight di head be, how much of di grain get cover and di stiff hairs wey dey when di crop mature.
Wetin e mean for you. Description of differences fit help choose seed to keep or examine for breeding programme. E no mean say dem recommend one of these Ethiopian sorghums for Nigerian farm. Di scores measure visible differences. To know which one go do well for one area, farmer still need evidence about how much grain e fit produce for local growing conditions.